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DOMINO SCSI Operator Guide¶

ND-814009.1 EN

ND NorskData

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DOMINO SCSI¶

Operator Guide¶

ND-814009.1 EN

Page 4¶

Note¶

The numbering system for Norsk Data's documentation changed in September 1988. All numbers now start with an 8. The numbering structure is therefore ND-8xxxxxx.xx xx.
Example: ND-863018.3A EN. Existing manuals will receive a new number if and when they are updated or revised.

The information in this manual is subject to change without notice.
Norsk Data A.S assumes no responsibility for any errors that may appear in this manual, or for the use or reliability of its software on equipment that is not furnished or supported by Norsk Data A.S.

Send all documentation requests to:

Norsk Data A.S
Graphic Centre
P.O. Box 25 - Bogerud
N-0621 Oslo 6
NORWAY

Page 5¶

Preface¶

The product¶

The mass storage system of the ND-5000/SINTRAN based tpServer (DOMINO SCSI software (DSS) ND-211478, and related hardware (see page 6)).

The reader¶

This operator guide was written for system supervisor and application programmer.

Prerequisite knowledge¶

General knowledge of computer system operation or application programming.

The manual¶

Chapter one (Introduction) introduces you to the concept and the components.
Chapter two (Installation and test) is a summary of the procedures found in chapter four (Preparing a 310/630 Mbyte disk for use) and in the DOMINO SCSI Hardware manual (ND-814.008).
Chapter three (Device operation) describes operations such as start/stop, insert/eject cartridge/reel and cleaning of disk and tape drives.
Chapter four (Preparing a 310/630 Mbyte disk for use) tells you how to format disks and create disk pools/directories.
Chapter five (BDIO commands and macros) is an alphabetic list of commands with explanations. The program allows you to investigate and change the pool structure on disks.
Chapter six (Tape access library) is an alphabetic list of calls with explanations. The library enables application programmers to use the tape stations from their programs.
Chapter seven (DP-SERVICE program) is an alphabetic list of commands with explanations for the device process service program (DP-SERVICE). The program allows you to investigate and change device names and parameters.

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Standard Notation¶

Prompt appearing on your terminal indicating that the SINTRAN operating system is ready to accept commands. Other prompts are # for the ND-100 microprogram operator communication, TPE> for the test program editor, BDIO for the basic disk input output program, DP: for the device process service program and > for the multifunction (MF) bus test and maintenance program.

Underlined text means that you must type this text on your terminal. The text will not be underlined when displayed on your terminal.

Symbol ↵ telling you to press the carriage return key on your keyboard. The symbol will not be displayed on your terminal.

@DP-service:PROG_
SCSI DOMINO Device level service program - Version A00 August 28, 1988
------------------- - continued - -------------------

Text which will be printed on your terminal screen.

Frame which enclose an example of a dialog between the operator and the computer. The text in the frame will appear on your terminal with exception of underlining, carriage return symbol (↵) and comments in italics.

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Table of contents¶

Introduction¶

The SCSI standard .......................................................................................................... 1
DOMINO versus ND-100 ............................................................................................ 2
DOMINO SCSI software .............................................................................................. 4
DOMINO SCSI hardware ............................................................................................ 6
SCSI filestore cabinet .................................................................................................. 7
Host adapter .................................................................................................................. 8

Installation and test .................................................................................................... 9¶

Device operation ....................................................................................................... 17¶

310 Mbyte WREN IV disk drive ................................................................................ 17
310/630 Mbyte EMD disk drives .............................................................................. 19
Magnetic tape subsystem ........................................................................................... 21
Laser drive LD 1200 optical disk ............................................................................... 28
Streamer tape drive ..................................................................................................... 34
ND Gigatape System .................................................................................................. 38

Preparing a 310/630 Mbyte disk for use ................................................................. 42¶

Formatting ................................................................................................................... 43
Creating a 70 Mbyte and a 288 Mbyte SINTRAN pool/directory on one 630 Mbyte SCSI disk ....................................................................................................... 45
Creating one 630 Mbyte SINTRAN pool/directory on one 630 Mbyte SCSI disk .......................................................................................................................... 49
Creating a 1260 Mbyte SINTRAN pool/directory spanning two 630 Mbyte SCSI disks .................................................................................................................. 52

Setting up a mirror pool .......................................................................................... 57¶

Permanently releasing a mirror pool ........................................................................... 58
Temporarily disconnecting a mirror pool .................................................................. 59
Making a backup copy ................................................................................................. 59
Reconnecting a mirror pool ........................................................................................ 60
Using a mirror pool as the "main" pool ...................................................................... 60

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BDIO Commands and Macros¶

Topic	Page
BDIO commands and macros	62

Tape Access Library¶

Topic	Page
Introduction	68
Principles of operation	69
Status	70
Routine interface	76
Calls and parameters	77
PLANC example	89

DP-SERVICE¶

Topic	Page
DP-SERVICE	92
Program commands	93
Status codes	99
Index	110

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List of Figures¶

Figure	Description	Page
1	System with DOMINO SCSI mass storage	1
2	Two CPUs connected to the same SCSI bus	2
3	System with two host adapters	3
4	Pool concept	4
5	DOMINO SCSI hardware	6
6	SCSI Filestore cabinet	7
7	Host adapter	8
8	WREN IV disk drive	17
9	EMD disk drive	19
10	EMD operator panel	20
11	Magtape operations reference card	22-27
12	Optical disk	29
13	Optical disk-drive operator panel	30
14	Write-protect tabs	31
15	Cartridge insertion, side A	32
16	Write-protect plug (streamer)	35
17	Cartridge label (streamer)	35
18	Inserting the cartridge (streamer)	36
19	Write-protect tab (gigatape)	39
20	Unload switch (gigatape)	39
21	Inserting the cartridge (gigatape)	40
22	Closing the door (gigatape)	40
23	Removing the cartridge (gigatape)	41
24	Disk capacities in number of 2 Kbyte pages	43

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Introduction¶

The SCSI Standard¶

The Small Computer Systems Interface (SCSI) standard is used for connecting mass storage devices such as magnetic hard disks, optical disks and magtape devices to Norsk Data computer systems. It is organized as an 8-bit SCSI bus with intelligent interfaces in each device and computer. The interface in the computer is called host adapter, while the interfaces in the devices are referred to as controllers. Up to eight such interfaces can be connected to one SCSI bus. The SCSI standard is very flexible since:

New devices can easily be connected to the bus
Several computers can be connected to the same bus
The same computer can be connected to several SCSI buses

ND-5000 computer cabinet	SCSI Filestore cabinet
DOMINO SCSI host adapter	Magtape
	Optical disk
	Magnetic disks
	SCSI Bus

System with DOMINO SCSI mass storage

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Page 12¶

DOMINO versus ND-100¶

There are two types of SCSI mass storage systems on ND computers: the DOMINO-based and the ND-100-based. Both systems use the same type of filestore cabinets, but use different disk storage formats and host adapters. Both systems are accessed via the SINTRAN III file system and will look alike to the user. For the operator, there will be some extra steps when using the DOMINO-based system. This involves creating a pool of disk space for each directory. A pool can be thought of as a logical disk, independent of physical restraints. Such a pool may include all or parts of the disk space on up to 16 disk drives in any combination. The pool looks like one disk drive (without subunits) when seen from the SINTRAN III file system.

The difference in storage formats means that before a SCSI disk used via the ND-100 can be used via a DOMINO:

The data must be transferred to a temporary storage media (disk or tape) via the Backup Manager software (see Backup Manager).

ND-5000	SCSI Filestore cabinet	ND-5000
computer cabinet		computer cabinet
DOMINO SCSI host		Magtape
adapter		Optical disk
		Magnetic disks

Two CPUs connected to the same SCSI bus

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System with Two Host Adapters¶

Component	Description
ND-5000 computer	DOMINO SCSI host adapter
SCSI Filestore cabinet	Magtape, Optical disk, Magnetic disks

User Guide, ND-860.276, or the SINTRAN command COPY-FILE.
The disk must be prepared for use with the DOMINO (see page 9).
The data must be transferred back from the temporary storage via the backup Manager or SINTRAN COPY-FILE to the disk.

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Domino SCSI Software¶

The Domino SCSI system includes software to make the SINTRAN directory size independent of the disk size. This way you can create directories from a few megabytes to many gigabytes in size. You can also distribute a directory over several disks (max. 16 disks).

Disk Configuration	Pool/Directory Size
One disk - one pool	630Mb
One disk - two pools	70Mb, 288Mb
Two disks - one pool	1260Mb
Several disks - several pools	100Mb (each)

Pool concept

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Directory Creation on DOMINO Disk¶

Increased parallelism, i.e., you can access several parts of a directory or file at the same time. To create a directory on a DOMINO disk, you use the Basic Disk Input Output (BDIO) program to create a pool and then you create the directory.

NOTE
Use the pool name instead of the disk name in SINTRAN's Create-directory command.

Detailed procedures on how to do this are found in the section "Preparing a 310/630 Mbyte disk for use". The pool size may be in the range of 128 Kbytes to 8000 Gbytes, but the typical size should be 10's or 100's of Mbytes. Pools have symbolic names. A pool may be expanded by the BDIO macro Exp-SINTR-Pool (expand SINTRAN pool).

NOTE
A SINTRAN pool cannot be expanded after you have created a directory on it.

The disk space added to a pool when it is expanded is called a pool extent. The pool extent size is an integral number of 2048-byte blocks specified in the expand pool call. The minimum size of a pool extent is 1/512 of the disk size, but not less than 128 Kbytes. The maximum number of extents in a pool is 64, meaning that a pool can be expanded 63 times. There may be several pools on the same disk and a pool may span several disks.

Mirroring¶

One or two mirror pools may be defined for a pool (see page 57). All write operations will then be performed on both/all pools. A mirror pool may be connected (connect-mirror-pool) and disconnected (disconnect-mirror-pool) while the pool, of which it is a mirror image, is online (connected). The disks holding the pools must be on the same SCSI bus or on different SCSI buses connected to the same computer.

Tape Access¶

To access a DOMINO SCSI tape drive, you must use the Backup Manager (see ND-860276) or the tape access library (see page 68). SINTRAN's monitor call MAGTP or SINTRAN's Device-function command cannot be used toward DOMINO SCSI tape drives. Cobol and FORTRAN runtime libraries will give full support by 1'st half-89.

Page 16¶

DOMINO SCSI Hardware¶

The DOMINO SCSI hardware includes a host adapter (Multifunction (MF) bus SCSI 324247, an interface card in the DOMINO series located in the computer) and the following devices:

310 Mbyte disk drive (5¼ inch WREN, single-ended SCSI)
310 Mbyte disk drive (5¼ inch WREN, differential SCSI)
310 Mbyte disk drive (Eight-inch Module Drive, EMD)
630 Mbyte disk drive (Eight-inch Module Drive, EMD)
magtape drive (StorageTek Magnetic Tape Subsystem, STK MTS)
optical disk drive (Laser Drive, LD 1200)
streamer tape drive (Archive Viper)
video tape drive (GIGAtape System (GTS), Exabyte)

The devices are placed in the computer cabinet or in an SCSI filestore cabinet. Each device has its own SCSI interface and, except for WREN, Viper and Exabyte, its own internal power supply.

Each device and host adapter has a unique SCSI identification (ID) number set by program or switches during installation. The device names and connections between device names and ID numbers are defined in the file DDS-DEVICES:CNFG by the ND-100 program DP-SERVICE (see the installation part of the manual DOMINO DP-SERVICE).

Page 17¶

SCSI Filestore Cabinet¶

The SCSI filestore cabinet can hold up to two magnetic tape drives, or six optical disk drives, or twelve hard disk drives, or any combination of the above. The devices are connected to two SCSI bus cables in the rear of the cabinet. The two cables may be joined to form one bus by connecting the upper ends of the two cables, but no more than eight devices and host adapters may be connected to one bus.

SCSI Filestore cabinet

Page 18¶

Host Adapter (MF bus SCSI 324247)¶

The host adapter is an ND-5000-size card with a 32-bit microprocessor and local memory. The card has connections for the MF/bus, Octobus, single-ended SCSI bus and differential SCSI bus, but the card cannot be connected to both a single-ended and a differential SCSI bus at the same time.

LED Indicators¶

LED 7 (yellow): 68020 RUNNING
Blinks when the MC 68020 microprocessor is accessing the memory.
The intensity indicates the "level of activity" of the microprocessor.

LED 5 (green): CONNECTED
Lit when the host adapter is operative.

LED 6 (red): SELFTEST RUNNING OR FAILED
Lit when the selftests start. If the selftests pass OK, the LED is put out.

Connectors¶

TEST CONNECTORS
Used for connecting a logic analyzer for debugging purposes. The pin-out is described in "DOMINO Standard Hardware Description", (ND-814001).

RESET SWITCH
Starts a total reset of the board when it is pressed down. The selftest/booting procedure is started automatically after reset.

ASYL (RS-232) CONNECTOR
(ASYL=ASYnchronous Line.) Used for connecting to a terminal, or to a terminal line to ND-100. Error messages from the selftests are written here.

Additional LED Indicators¶

LED 1 (yellow): TRACER ARMED
Lit when the tracer on the host adapter is waiting to be triggered.

LED 2 (green): TRACER TRIGGERED
Lit when the current trig conditions are met.

LED 3 (yellow): SCSI BUSY
Lit when the busy line on the SCSI bus is true.

LED 4 (yellow): SCSI REQUEST
Lit when the request line on the SCSI bus is true.

Host adapter

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Installation and test¶

Install the Domino Disk System (DDS) software (see PI sheet for DOMINO SCSI software (DSS), ND-211478)
Install the DDS hardware

For a complete procedure see ND-814008 "Domino SCSI hardware", chapter 3 "installation" and also page 92 in this book.

Command	Description
`@DP-service:PROG`	SCSI DOMINO Device level service program - Version A00 August 28, 198
`DP:List-device-name`
Name	DOMINO Id Lun Code Device type
`DP:Define-device-name`
Device name/---------/	Disk-1
DOMINO octobus station(0-77b):	10b
SCSI Device number:	0
SCSI Logical Unit number/0/:
Device type:	(Disk/tape/write-once-disk/read-only-disk)/disk/:Disk
Device code/0/:
Automatic BDIO enter (YES/NO)?	YES/:Y
`DP:List-device-name`
Name	DOMINO Id Lun Code Device type
Disk-1	10b 0 0 0 Disk Auto enter
`DP:Exit`
`@`

Page 20¶

2: MFbus Set Up¶

This is a setup procedure for the DOMINO SCSI host adapter (SCSI controller) in an ND-5000 ES L.

For a complete MFbus setup procedure, see the Service Handbook, volume 2, section 2-8.

Connect a 9600 baud RS232 terminal to the MFbus controller and type the underlined part of the following.

MFbus Test & Maintenance Version F¶

>Configurate-slot↵

Slot	Description
Slot 01	MF-bus controller standard
Slot 02	Port twin 16-bit (print 5155)
Slot 03	SCSI controller model: 00B ECO: A PR:A
Slot 05	Ethernet III controller model: 00B ECO: D PR:D
Slot 19	Dynamic RAM - 4Mb
Slot 20	ND 5000 model: 00B

PR=Print Revision

Slotno:3↵
Slot 03 : SCSI controller model: 00B ECO: A PR:A
Lower limit (32 Kbyte increment (octal)):0↵
Upper limit:200↵

200 (octal) per 4Mbyte of Dynamic RAM

Access (Local=1, global=2, both=3):1↵
More limits (yes/no):no↵
Station no:10↵

Octobus station number (octal)= 10 (octal) for slot 3 and 11 (octal) for slot 4

Powerfail destination (cr gives default=1):↵
Rec. broadcast type (cr gives default=0):↵
Basic software ID (max 4 alphanumeric chars):BDIO↵
More registers (Y/N):n↵

- Loading parameters to board, please wait -
Save (Y/N):y↵

- Writing to nonvolatile memory, please wait -
>List-configuration↵

Slotno:3↵
Slot 03 : SCSI controller model: 00B ECO: A PR:A
Station no:000001B
Powerfail destination: 000001B

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Continued¶

Broadcast type:	000007B
Speed:	000000B
Master control reg:	000201B
Limits that define access-areas for this slot.
Lower limit:	000000B
Upper limit:	000200B Local
Basic software identification:	BDIO
Slotno:	27

Format the Disk Drive¶

Enter: sys⏎

password:

@TPE-MON-100⏎

TPE>Load-program Disk-MM⏎

TPE>Format-initialize⏎

Device name: Disk-1⏎

Caution¶

Formatting the wrong drive may cause loss of valuable data.

All information on all partitions will be lost.

Do you want to continue (yes/No): Y⏎

The formatting takes about 16 minutes for 310 Megabyte and 32 minutes for 630 Megabytes.

-OK-
Directory size 630 Mb or 310 Mb

TPE>exit⏎

@log⏎

Page 22¶

Create a SINTRAN Pool (see page 42 for explanations)¶

Enter: sys↵

password: ↵

@BDIO↵

BDIO: Release-disk,disk-1↵

If BDIO returns the message "Error: Diskvolume not found" the disk already released.
If BDIO returns "Error: Connected pools on diskvolume", use the command sequence:
Exit, List-directories-entered, Release-directory, Delete-mass-storage-unit, BDIO,
Release-disk (see page 61).

BDIO: Erase-disk,,disk-1,no↵

BDIO: Init-disk,disk-1,disk-1↵

BDIO: Enter-disk,disk-1,disk-1,no↵

BDIO: Disk-statistics,disk-1↵

BDIO: Cre-SINTR-pool,disk-1,disk-630MB-1,↵

BDIO: Exit↵

Create a Directory (see page 51 for explanations)¶

@create-directory,pack-one,disk-630MB-1,↵

Enter the Directory (see page 51 for explanations)¶

@enter-directory,pack-one,disk-630MB-1,↵

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Test the Disk System¶

If you run the CHK-DOM-FIL (check domino file) program from 10 terminals at the same time this will put a heavy load on the Domino Disk System (DDS). Error messages, if any, will appear on the terminals and be written to the error files (see step 12). To run the test follow these steps:

Prepare all the Domino Disk System (DDS) disks for use (see page 9).
Log in as user system.

Create user TEST on each DDS disk.

@Create-user <directory name on disk 1>:TEST.J
@Create-user <directory name on disk 2>:TEST.J

Give user TEST 200 pages on each DDS disk.

@Give-user-space <directory name on disk 1>:TEST 200.J
@Give-user-space <directory name on disk 2>:TEST 200.J

Log in as user TEST.
Set default public file access rights to RWACD.
```
@Set-default-file-access RWACD RWACD RWACD.J
```
Create 10 test files, one for each terminal (test-1:symb through test-10:symb). The size of each test file must be 16 pages the files must be of the type "symb". Create at least one test file on each DDS disk.
```
@Create-file <directory name on disk 1>:TEST>TEST-1:symb 16.J
@Create-file <directory name on disk 2>:TEST>TEST-2:symb 16.J
```

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Technical Instructions¶

Create 10 error files, one for each terminal (error-1:symb through error-10:symb). The files must be of the type "symb". Do not specify the size of the error files.

Command

@Create-file (:TEST)ERROR-1:symb.

@Create-file (:TEST)ERROR-2:symb.
Log in as user SCSI-DOMINO.
Copy the file CHK-DOM-FIL-A00:DOM from the diskette to disk.
Make sure that user SCSI-DOMINO has at least 30 free pages.

On the first terminal, log in as user test, start the CHK-DOM-FIL program. Then give the file name TEST-1, the characters T1, error message file ERROR-1, number of first page to check \ and page number increment 1.

Command

enter TEST
password
@ND (SCSI-DOMINO)CHK-DOM-FIL
Check data on a contiguous or allocated file
Nov. 15, 1988
Give file name: TEST-1
Type two characters (will be used as file data): T1
Give error message file name: ERROR-1

--- Continued ---

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Continued¶

Starting to write data to the file

Give number of the first page to check. It must be in the range (both inclusive) X to Y: X_

Give page number increment (neg., zero, pos.): _

Current page no.	Acc.no of pages
C	A

Instead of typing an X, type the number appearing on your terminal at the position of the other X on this line.

A is the rapidly increasing Accumulated number of pages checked.

C is the page number of the page currently being checked.

On the second terminal, log in as user test, start the CHK-DOM-FIL program. Then give the file name TEST-2, the characters T2, error message file ERROR-2, number of first page to check and page number increment 1.
Start the program in a similar manner on the third through 10th terminal.

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Device operation¶

310 Mbyte WREN IV disk drive¶

The 5¼-inch WREN IV magnetic disk drive exists in two versions, the ND-110396 single-ended SCSI version used in the ND-5000ES C and the ND-110328 differential SCSI version used in the filestore cabinets. Both versions have 9 data surfaces, an average seek time of 16.5 milliseconds, average latency of 8.3 milliseconds and a 9-15 Mbits/second transfer rate (4 Mbytes/second bursts). No operator maintenance or other scheduled maintenance is required.

WREN IV disk drive

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Starting the Disk Drive¶

The disk starts as you turn on the computer.

Turn on the computer.
Wait 39 seconds.

Stopping the Disk Drive¶

The drive stops when you turn off the computer.

Turn off the computer.
Wait 30 seconds.

NOTE
The diskheads are automatically locked when the power is turned off. No locking is needed before moving the disk.

Unit Selected Indicator¶

The disk lights the red LED when selected.

Page 29¶

310/610 Mbyte EMD Disk Drives¶

The Eight-inch Module Drive (EMD) exists in two versions, the 310 Mbyte ND-110326 and the 630 Mbyte ND-110325. Both versions have 17 data surfaces, an average access time of 24.33 milliseconds and a 2.46 Mbyte/second transfer rate (4 Mbytes/second bursts). They have both single-ended and differential SCSI bus connections. Only the differential connections are used. No operator maintenance or other scheduled maintenance is required.

Component	Description
Power supply
Operator panel

EMD disk drive

Page 30¶

EMD Operator Panel¶

Indicator	Description
Address	Logical address switch
SEL	Unit selected indicator
START	Ready indicator / Start switch
FAULT	Fault indicator / Fault clear switch
WRITE PROTECT	Write-protect indicator / Write-protect switch

Procedure to Start the Disk Drive¶

If the ready indicator is lit, the disk is running and will stop if you press the start switch.

Push the START switch. The ready indicator flashes rapidly until the drive has started.
Wait until the ready indicator stays lit (max. 90 seconds)

Procedure to Stop the Disk Drive¶

If the ready indicator is dark, the drive has already stopped and will start when you press the START switch.

Push the START switch. The ready indicator flashes slowly until the disk has stopped.
Wait for the ready indicator to go off (max. 60 seconds)

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Logical Address Switch and Indicators¶

The disk displays its logical address as a binary number on the four green LEDs. When you press the ADDRESS switch, the logical address is increased by one. A lit LED represents a 1. All the indicators must be off (address = 0), as this is the only address recognized by the SCSI controller on the disk.

NOTE
The logical address is an address used internally on the disk and not the SCSI ID number used on the SCSI bus.

Fault Switch and Indicator¶

The disk lights the red FAULT indicator when it detects an error. If the problem that caused the fault is no longer present, you can turn off the indicator by pressing the FAULT switch.

Write-Protect Switch and Indicator¶

You can turn the write protection on and off by pressing the switch. When the red indicator is lit, the protection is on.

Unit Selected Indicator¶

The disk lights the green LED when selected.

NOTE
The diskheads are automatically locked when the power is turned off. No locking is needed before moving the disk.

Magnetic Tape Subsystem¶

The Magnetic Tape Subsystem (MTS) operates on ANSI-compatible 1/2-inch tapes in Phase Encoded (PE) formats with 1600 bits per inch (bpi), and Group Coded Recording (GCR) formats with 6250 bpi. Tape speed is 100 ips. The drive will take a short break to cool down if it has started and stopped 3000 times within five minutes. The automatic tape-threading mechanism handles 7, 8 1/2, and 10 1/2-inch reels.

The tape path must be cleaned by the operator after every eight hours of use. There is a cleaning procedure on pages 14 and 15. The drive requires scheduled maintenance at three-month intervals.

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Loading Tape Automatically¶

Caution!¶

Do not open the door until the tape has stopped.
The door should always be closed when the tape is moving.

Grip the door as shown and open it by pulling it towards you.

Magtape Operations Reference Card¶

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NP Norsk Data

Page 33¶

Unloading Tape¶

Press the REW/UNLD button.
Wait for the tape reel to stop, then open the door.
Open the reel lock.
Remove the tape reel using BOTH HANDS as shown.

Loading Tape Manually¶

It is possible to load the tape manually if there are problems with the automatic load function.

Note
When the LOAD REW key is pressed the vacuum blower starts and remains on for about 30 seconds. The procedure must be completed within this time. If not: close the door, press RESET, and repeat the procedure.

Steps¶

Press RESET and press LOAD REW twice. The display flashes LOAD TAPE.
Open the door.
Let the end of the tape hang down as shown.
Turn the tape reel as shown. When the tape end is caught in the air stream, turn the reel the other way until the display flashes SHUT DOOR.
Shut the door.

Magtape operations reference card - continued -

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MAINTENANCE¶

Clean the tape path after about 8 hours use.

How to clean:¶

Open the tape path cover by pulling the buttons indicated in the drawing below.
Use a lintfree cloth moistened with cleaner fluid and clean all the places indicated in colour in the drawing to the right.
Close the tape path cover properly before pushing the buttons.

Mag-tape operations reference card - continued

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Magtape Operations Reference Card¶

Components¶

Component
Swing Arm Rollers
Capstan Wheel
Upper Tape Guide
Read/Write Head
Tape Cleaner Block
Lower Tape Guide
EOT/BOT Sensor
Threading Diverter
Fixed Rollers

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STATUS INDICATORS¶

Ready: lights when tape loading has been completed.
Select: lights when the tape is in on-line status and selected by the operator.
EOT/BOT: lights when either the EOT or the BOT mark has been detected.
On-Line: lights when the on-line status is set and the unit is available to the user.
Machine Check: flashes to signal that the operator must check the tape loading, or that the unit requires service or maintenance.
File Protect: lights when the write-enable ring at the rear of the tape reel is not detected. No write/erase operations are allowed.
System Select/6250/1600: If 1600 or 6250 is lit alone, this indicates the density in BPI for the data written to the tape. If SYS SEL is also lit, the density can be selected by software. Ref: MCOPY or Backup-system.

OPERATOR TOUCH-BUTTONS¶

Density select: to select the density, position the tape at the BOT mark and press this key a few times, until the indicators above are in the right condition.
Rewind/Unload: press in off-line status to rewind the tape and unload it from the tape path.
Reset: press to generate a reset on the unit. It stops all operations and tape motion, and resets the on-line status.
Load Rewind:
- If the tape is not loaded, press this button to load the tape and position it at the BOT mark.
- If the tape is loaded, press this button to rewind it to the BOT mark.
On-Line: press to set the unit to On-line status. It disables the Rew/Unld and Load Rew keys.

THE OPERATOR PANEL¶

The operator panel is divided into four parts:

the status indicators
the operator touch-buttons
the display
the diagnostic keypad (used only by Norsk Data service personnel)

Power	Circuit breaker
On: 1	![Switch]
Off: 0


Ready
Select
EOT/BOT
On-Line
Mach Chk
File Prot
Sys Sel
6250
1600
Density
Rew/Unld
Reset	Diagnostic keypad
Load Rew
On-Line

Magtape operations reference card - continued

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DEFINITIONS¶

IPS:
Inches Per Second.

BOT:
Beginning Of Tape mark.

EOT:
End Of Tape mark.

BPI:
Bits Per Inch (1600 or 6250 BPI): the density of the written data on the tape.

Write-protect:
When a tape is write-protected, it is not possible to write to the tape.

This is the write-enable ring. Remove it to switch on the write-protection.

THE DISPLAY¶

Display conditions:

████ On-line
:: : Off-line, test successfully completed
@n n Executing maintenance routine
@n n Executing test
████ Displaying data
nn n Displaying address
██? Request for data or test ID input
??? Request for address input
nn n Fault code

OPERATOR-HANDLED ERRORS¶

CAUTION !¶

The table below contains all the errors that can be handled by you. If any other error occurs, contact Norsk Data service personnel.

FAULT CODE	FAULT DESCRIPTIONS	ACTION
001/011	Drive not loaded before motion request.	Load tape before any motion.
021/031
0E1
002/003	BOT or EOT status detected before/during motion set.	Illegal command executed either on BOT or EOT.
022/023
032/033
0E3/0E4
0F3/0F4
0E2	Maintenance-write will not run on file-protected tape.	Do not use a file-protected tape.

Magtape operations reference card - continued

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Laser drive LD 1200 optical disk¶

The ND-110230 laser drive is a Write-Once-Read-Many (WORM) type drive. It operates on one side of the data cartridge at a time and the cartridge must be turned over manually. Each side of the cartridge can hold one Gigabyte of data. The drive does not require any operator maintenance or other scheduled maintenance.

Operator panel¶

The operator panel has four switches/indicators and a hexadecimal display. They are the - Start/Stop switch/Ready indicator - Write-Protect switch and indicator - SCSI ID number switch/Power On indicator - Device Address switch (not used)/Power On indicator.

Start/Stop switch/Ready indicator¶

The switch has a start (in) position and a stop (out) position. When the switch has been used, the indicator flashes until the drive has started (is ready) or stopped. When the indicator is lit, the drive is ready.

Write-Protect switch and indicator¶

The switch changes the drive mode between write-protect and no write-protect, except if the tab on the data cartridge is in the write-protect position. In this case, the drive will always be in the write-protect mode. The indicator is lit whenever the drive is in the write-protect mode.

SCSI ID number switch/Power On indicator¶

The switch is operated by inserting a numbered cap. The number on the cap is the SCSI ID number (0-7). The indicator is lit whenever the DC power is present in the drive.

NOTE
An SCSI ID number change will not be in effect before the next power-up or host reset.

Device Address switch/Power On indicator¶

The switch is not used. Any numbered cap may be inserted. The indicator is lit whenever the DC power is present in the drive.

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Optical Disk¶

Component	Description
Operator panel	Control interface
Front cover	Protective casing
Data cartridge	ND-110231

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Optical Disk-Drive Operator Panel¶

Component	Description
Cartridge door
Ready indicator
Write-protect indicator
Power indicators
Maintenance panel
Filter grill (air intake)
Hexadecimal display
Start/Stop switch
Write-protect switch
Control module address switch (SCSI ID)
Device address switch (non-operational)

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Write Protect Tabs¶

Write-Protect Tab for A Side¶

Write-protect tab shown in write-protect position
Write-protect tab for A side
Letter (A or B) indicating side
Toward laser drive

Write-Protect Tab for B Side¶

Write-protect tab shown in write enable position (not protected position)
Write protect tab for B side
Optical access doors

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Cartridge Insertion¶

Side A¶

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Cartridge Handling¶

You may store the cartridges on edge, flat or stacked, but away from direct sunlight. If a cartridge is stored at temperatures other than room temperature, you may have to wait up to 1 hour per 10 degrees centigrade temperature difference before data can be accessed.

Installing the Cartridge¶

Set the write-protect tabs on the cartridge to the desired positions. There is one write-protect tab for each side of the cartridge (see figure "write-protect tabs").
If the power indicators are not lit, turn on the power (see figure "optical disk").
If the ready indicator is lit, stop the drive by pressing the start/stop switch on the drive operator panel and wait for the indicator to go off (1 minute).
On the drive, open the cartridge door by pressing down the handle.
Turn the cartridge so you have the letter for the desired side on the left (see figure "cartridge insertion").
Gently insert the cartridge so it snaps into place.
Close the cartridge door by lifting the handle.
Press the start/stop switch to start the drive.
Wait for the ready indicator to stop flashing and remain on. This takes 1 minute except the first time after power-up when it takes 4 minutes due to internal tests.

Removing the Cartridge¶

If the power indicators are not lit, turn on the power (see figure "optical disk").

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Streamer Tape Drive¶

The ND-110503 streamer tape drive uses a standard ANSI X3.55-1977 1/4" tape cartridge (ND-528051). Each cartridge can hold up to 155 Mbytes of data. Backup of 155 Mbytes takes about 27 minutes. The drive is part of the standard equipment in all ND-5000 ES model C computers. The read/write head in the drive must be cleaned regularly.

Turning on Power¶

The drive is turned on as you turn on the computer.

Turn on the computer.
Wait for the green LED on the streamer to go on and off (about three seconds).

Check the Cartridge Type¶

The tape cartridge must meet the ANSI X3B5/85-138 specification

Check that the cartridge is a ND-528051 or equivalent which meets the ANSI X3B5/85-138 specification.

Page 45¶

Set the write-protect plug¶

You can protect existing data on the cartridge by turning the write-protect plug to the SAFE position.

Turn the write protect plug to the desired position.



Writing permitted	Writing prohibited

Write-protect plug

Labelling the tape cartridge¶

It is very important to label the cartridge to know what has been stored on it. Always write the date and the name of the disk, pool or directory from which the backup was taken.

NOTE
Do not fasten the label to the metal plate on the back of the cartridge. The thickness of the label will be sufficient to bring the cartridge out of its correct position, so that the tape will be positioned incorrectly with respect to the read/write heads.

Label the tape cartridge.

Cartridge label

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Inserting the Cartridge¶

The drive is designed so that the cartridge can be loaded in only one orientation.

Orient the cartridge, as in the figure, with the write-protect plug in the corner which is up and towards you.
Push the cartridge in until it reaches a hard stop.

As the cartridge is inserted it encounters slight resistance from the ejector assembly. The stop point is reached when the cartridge drops behind the edge of the drive opening.
Move the head loading lever as far down as it goes.

Inserting the cartridge

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Writing and Reading¶

The green LED will glow while a program accesses the drive.

Check that the green LED indicates activity (glows).

Ejecting the Cartridge¶

The cartridge is ejected by sliding the loading lever up (away from the cartridge). The head assembly retracts, and the cartridge ejection mechanism pushes the cartridge left and out of the drive.

Slide the head loading lever up (away from the cartridge).

Cleaning the Tape Drive¶

If backup is taken daily you must clean the read/write heads once a week. If backup is taken weekly you must clean the heads once a month.

If there are any rewrites, rereads, overruns or underruns during copying, a message will appear on the screen afterwards, giving you the number of such occurrences. If the numbers increase dramatically from copy to copy, the read/write heads may need cleaning.

Obtain an ND-770596 cleaning kit or equivalent.
Clean the heads by following the instructions in the cleaning kit.

Page 48¶

ND Gigatape System¶

The ND Gigatape System (GTS) includes a tape drive for ND-110621 8mm tape cartridges. Each cartridge can hold 2.2 gigabytes of data and a 310 Mbyte disk can be copied in approximately 21 minutes.

The procedure for taking backup is described in the Backup Manager User Guide (ND-860.276), while this section describes how to operate the gigatape drive.

Ensure that the power is on¶

Ensure that the computer power is on before you start using the tape drive. If not, turn on the computer. The tape-drive power is now automatically turned on.

Wait for initialization¶

The power up initialization and the selftest of the tape drive can take up to two minutes. During this period, both the red and the green LEDs are turned on. If the selftest fails, the LEDs flash.

Check cartridge type¶

During initialization, check that the cartridge is of the P5-90MP (European standard). The P6-90MP type (American standard) has a slightly shorter tape length, which causes the tape drive to fail on measuring the tape.

Check write-protect tab¶

Also check that the write-protect tab on the cartridge is set to match the desired operation (see figure).


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Page 49¶

Write Protect Tab¶

Write allowed	Protect from erasure

Fill in the Label¶

Fill in the cartridge label with the desired information (directory names, dates, etc.) and place the label on the tape cartridge.

Press the Unload Switch¶

Press the unload switch to open the drive door. If there is already a cartridge in the drive, you may have to wait a few minutes for the tape to rewind before the door opens.

Unload switch	Unload switch

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Insert the Cartridge¶

Insert the cartridge with the label side to the right and the cartridge lid facing towards the drive.

Inserting the cartridge

Close Door¶

Gently close the drive door. The tape cartridge is loaded automatically. After about 30 seconds, the green LED comes on, indicating that the tape drive is ready for operation.

Closing door

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Start unload procedure¶

When the backup is finished, start the unload procedure by pressing the unload switch. The green LED now turns off. After rewinding the tape (can take a few minutes, depending on the length of the tape used), the tape drive unloads the tape cartridge.

Removing cartridge

If the cartridge does not unload¶

If the tape cartridge does not unload after you have pressed the unload button, check that the tape drive is not in use (red LED blinking), or that the tape is not still rewinding. Also check that the computer is turned on.

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Preparing a 310/630 Mbyte disk for use¶

To prepare an empty DOMINO SCSI disk for use by SINTRAN, type the underlined part of the following text on your screen. ↵ means the carriage return key (also referred to as the enter key or just return key). Unless otherwise stated, the computer responds to a command with a prompt (#, @, TPE>, BDIO etc.) within five seconds.

NOTE
In most cases your disk is already formatted and you can skip to one of the following sections:

"Creating a 70 Mbyte and a 288 Mbyte SINTRAN pool/directory on one 630 Mbyte SCSI disk",

"Creating one 630 Mbyte SINTRAN pool/directory on one 630 Mbyte SCSI disk" or

"Creating a 1200 Mbyte SINTRAN pool/directory spanning two 630 Mbyte SCSI disks"

The sections are just examples and you may spread pools/directories over disk drives in any desired way, providing you stay within 16 disk drives and do not expand the pool more than 63 times. The space allocated on the disk drive upon creating or expanding a pool will always be in units of 1/512 of the total disk drive size, rounded upwards from the space size requested. The page size is 2 Kbytes.

If you want to create a pool of the exact size of an old Norsk Data disk type, see appendix A and give the number of pages in your old directory as the number of "2 Kbyte units" when creating a SINTRAN pool in the section "creating a 630 Mbyte.........". The difference between directory size and user space available varies with the directory size. Some common directory sizes, in 2 Kbyte

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Formatting¶

To format the disk drive, you use the program "Disk Media Maintenance (DMM)". You must know the device name and ID number of the disk. The numbers are found on a label on the front of the disk drive.

	Drive data space	Pool data space	Directory size	User space
SCSI EMD 630	307618	307498(v)	307492(v)	307468(v)
SCSI EMD 310	151368	151248(v)	151242(v)	151226(v)
CDC RSD 70	34771	34771(v)	34765(v)	34757(v)
CDC SMD 288	140397	140397(v)	140391(v)	140377(v)

(v)=variable

Disk capacities in number of 2 Kbyte pages

Enter: SYS
password:
@_TPE-MON-100

TPE>LOAD-PROGRAM DISK-MM

Disk Media Maintenance will be loaded into memory and started.

Disk Media Maintenance version x.xx 19yy mm dd
TPE>FORMAT-INITIALIZE

Device name: DISK-N
n=1-6 (See label on disk drive or installation description)

CAUTION¶

Formatting the wrong drive may cause loss of valuable data.

Page 54¶

Formatting Instructions¶

Press the write-protect button on the drives you do not want to format.

Warning
All information on all partitions will be lost Do you want to continue (yes/No): Y

The formatting takes about 11 minutes for 310 Mbytes and 22 minutes for 630 Mbytes.

Directory Info
OK-Directory size 630 Mb (or 310 Mb)

TPE> EXIT
@ LOG

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Creating a 70 Mbyte and a 288 Mbyte SINTRAN Pool/Directory on One 630 Mbyte SCSI Disk¶

Use the BDIO program to create the pools. First you erase, initialize and enter the disk, then you use the statistics command to get the disk size. Then you use the create-sintran-pool macro (cre-SINTR-pool) to make the first pool which you might name disc-70mb-2, and the second pool which you might name disc-288mb-2-F, providing there are no other disks with these names. Then you leave BDIO and use the SINTRAN command CREATE-DIRECTORY specifying the pool names when asked for POOL OR DEVICE NAME: (second parameter).

Command	Description
Enter:	SYS↵
password:	↵

NOTE
The device names, disk names, and pool names must not be abbreviated.

@BDIO↵
BDIO Operator command interface version A01 Storage administrator version A00 november 14 1988

Device name of disk drive (disk-1.. disk-n as defined by the @DP-service program in the file "DSS-devices:CNFG", see installation part of ND-814.008, DOMINO SCSI hardware).

Command
BDIO: RELEASE-DISK,DISK-1↵

If BDIO returns the message "Error: Disk volume not found", the process must be reviewed to ensure correct execution.

Page 56¶

Disk Management¶

disk is already released. If BDIO returns "Error: Connected pools on disk volume", use this command sequence: BDIO:EXIT, @LIST-DIRECTORIES-ENTERED, @RELEASE-DIRECTORY, @DELETE-MASS-STORAGE-UNIT, @BDIO, BDIO:RELEASE-DISK.

Disk Commands¶

Command	Description
BDIO:ERASE-DISKVOLUME,,DISK-1,NO_	Erase disk volume (Erase-all flag: yes=data and pointers will be erased, No=only pointers will be erased)
BDIO:INIT-DISKVOLUME,DISK-1,_DISK-1	Initialize disk volume (name and device name)
BDIO:ENTER-DISKVOLUME,DISK-1,DISK-1,NO_	Enter disk volume (Read only flag: Yes= read only, No= both read and write will be allowed)
BDIO:DISK-STATISTICS,DISK-1_	Disk statistics

Disk Statistics¶

Total space: 307498
Free space: 307498

307498 for 630 MB disk drive, 151248 for 310 MB disk drive.

Maximum Free Space¶

Max free contiguous: 307498

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Pool Name Instructions¶

Your pool name (any name with up to 32 alphanumeric characters is permitted as long as there is no other disk with that name). See appendix A and your warm start file "(SYS)LOAD-MODE-MODE" and "(MODE-FILES)EXTRA-LOAD:MODE" and avoid disk names given in the "ENTER-DIRECTORY." commands.

Directory size in 2Kbyte blocks, is 6 pages less than the pool size and 8 pages more than the user space (gives a total user space of 34757 pages)

BDIO Commands¶

BDIO: CRE-SINTR-POOL,DISK-1,DISC-70MB-2,34765.J

Command	Details
BDIO(ADV): Create-pool par-2:var par-1:var par-3:var	size allocated: 34771
BDIO(ADV): Destination poolindex:var
BDIO(ADV): Find-pool par-2:var	pool index: 1
BDIO(ADV): Connect-pool poolindex:var SINTRAN
BDIO(ADV): par-3:var=par-3:var-6
BDIO(ADV): create-area poolindex:var par-3:var 1	Area Id: 16777217
	size allocated: 34765
BDIO(ADV): Disconnect-pool poolindex:var
BDIO(ADV): Reset-advanced-mode

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BDIO: CRE-SINTR-POOL,DISK-1,DISC-288MB-2-F,140391¶

BDIO(ADV): Create-pool par-2:var par-1:var par-3:var
size allocated: 140397
BDIO(ADV): Destination poolindex:var
BDIO(ADV): Find-pool par-2:var
pool index: 2
BDIO(ADV): Connect-pool poolindex:var SINTRAN
BDIO(ADV): par-3:var=par-3:var-6
BDIO(ADV): create-area poolindex:var par-3:var
Area Id: 16777217
size allocated: 140391
BDIO(ADV): Disconnect-pool poolindex:var
BDIO(ADV): Reset-advanced-mode

BDIO: EXIT¶

Directory name (any name with up to 16 alphanumeric characters is permitted)

Pool name of first pool
Bit file address, "," gives the default address which is in the center of the directory space "-,1" gives end of directory space

@CREATE-DIRECTORY,PACK-ONE,DISC-70MB-2,,

Pool name of second pool

@CREATE-DIRECTORY,PACK-TWO,DISC-288MB-2-F,,
@LOG

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Creating one 630 Mbyte SINTRAN pool/directory on one 630 Mbyte SCSI disk¶

Use the BDIO program to create the pool. First you release, erase, initialize and enter the first disk volume, use the statistics command to get the size and the "cre-sintr-pool” macro (Create-SINTRAN-pool) to make the pool which you may name disk-630mb-1, provided there is no other pool or SINTRAN device with this name. Then you leave BDIO and use the SINTRAN command CREATE-DIRECTORY specifying the pool name when asked for POOL OR DEVICE NAME: (second parameter).

Enter:	SYS.␊
password:	␊

NOTE
The device names, disk volume names and pool names may not be abbreviated

@BDIO.␊
BDIO Operator command interface version A01
Storage administrator version A00 november 14 1988

Device name of disk drive (disk-1.. disk-n as defined by the @DP-SERVICE program in the file "DSS-DEVICES:CNFG", see installation part of DOMINO SCSI hardware, ND-814008).

BDIO: RELEASE-DISKVOLUME,DISK-1.␊

If BDIO returns the message "Error: Disk volume not found", the disk is already released. If BDIO returns "Error: Connected pool-son disk volume", use this command sequence: BDIO:EXIT, @LIST-DIRECTORIES-ENTERED, @RELEASE-DIRECTORY, @DELETE-MASS-STORAGE-UNIT, @BDIO, BDIO: RELEASE-DISK.

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Device Operations¶

Erase Disk Volume¶

Command	Description
`BDIO: ERASE-DISKVOLUME,,DISK-1,NO`	Erase-all flag (yes=data and pointers will be erased, No=only pointers will be erased)

Initialize Disk Volume¶

Command	Description
`BDIO: INIT-DISKVOLUME,DISK-1,DISK-1`	Your disk volume name (any word with up to 32 alphanumeric characters is permitted)

Enter Disk Volume¶

Command	Description
`BDIO: ENTER-DISKVOLUME,DISK-1,DISK-1,NO`	Read only flag (Yes= read only, No=both read and write will be allowed)

Disk Volume Statistics¶

Command	Statistic
`BDIO: DISKVOLUME-STATISTICS,DISK-1`	Total space: 307498 Free space: 307498 Max free contiguous: 307498

307498 for 630 MB disk drive, 151248 for 310 MB disk drive.

Page 61¶

Pool Name Description¶

Your pool name (any name with up to 32 alphanumeric characters is permitted, as long as there is no other pool or SINTRAN device with that name. See appendix A and your warm start file "(SYS)LOAD-MODE:MODE" and "(MODE-FILES)EXTRA-LOAD:MODE". Avoid device names given in the "ENTER-DIRECTORY,..." commands.)

Directory size in 2Kbyte blocks, is 6 pages less than the pool size and 24 pages more than the user space (gives a total user space of 307468 pages)

BDIO Commands¶

BDIO: CRE-SINTR-POOL,DISK-1,DISK-630MB-1,307492,

BDIO(ADV): Create-pool par-2:var par-1:var par-3:var
size allocated: 307498
BDIO(ADV): Destination poolindex:var
BDIO(ADV): Find-pool par-2:var
pool index: 1
BDIO(ADV): Connect-pool poolindex:var SINTRAN
BDIO(ADV): par-3:var=par-3:var-6
BDIO(ADV): create-area poolindex:var par-3:var 1
Area Id: 16777217
size allocated: 307492
BDIO(ADV): Disconnect-pool poolindex:var
BDIO(ADV): Reset-advanced-mode

BDIO: EXIT,

Directory and Bit File Address¶

Directory Name (any name with up to 16 alphanumeric characters is permitted)	Bit File Address (", " gives the default address which is in the center of the directory space ","-1" gives end of directory space)
Pool name

@CREATE-DIRECTORY,PACK-ONE,DISK-630MB-1,

@LOG,

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Creating a 1260 Mbyte SINTRAN pool/directory spanning two 630 Mbyte SCSI disks¶

Use the BDIO program to create the pool. First you release, erase, initialize and enter the first disk volume, use the statistics command to get the size and the "cre-sintr-pool" macro (Create-SINTRAN-pool) to make the pool which you may name disk-1260mb-1, provided there is no other pool or SINTRAN device with this name. Then you erase, initialize and enter the second disk volume, use the statistics command to get the size and the "EXP-sintr-pool" macro (for Expand-SINTRAN-pool) to expand the pool "disk-1260mb-1". Finally you leave BDIO and use the SINTRAN command CREATE-DIRECTORY specifying the pool name when asked for POOL OR DEVICE NAME: (second parameter).

Enter:	SYS_
password:	_

NOTE

The device names, disk volume names and pool names may not be abbreviated.

@BDIO_

BDIO Operator command interface version A01
Storage administrator version A00 november 14 1988

Device name of disk drive (disk-1... disk-n
as defined by the @DP-SERVICE program in
the file "DSS-DEVICES:CNFG", see installation
part of DOMINO SCSI hardware, ND-814008).

BDIO: RELEASE-DISKVOLUME,DISK-1_

If BDIO returns the message "Error: Disk volume not found", the disk is already released. If BDIO returns "Error: Connected pools

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Disk Volume Commands¶

Use this command sequence for operations on a disk volume:

BDIO:EXIT
@LIST-DIRECTORIES-ENTERED
@RELEASE-DIRECTORY
@DELETE-MASS-STORAGE-UNIT
@BDIO
BDIO:RELEASE-DISK

Erase Disk Volume¶

BDIO: ERASE-DISKVOLUME,DISK-1,NO

Disk volume name (.,=any name)
Device name
Erase-all flag (yes=data and pointers will be erased, No=only pointers will be erased)

Initialize Disk Volume¶

BDIO: INIT-DISKVOLUME,DISK-1,DISK-1

Your disk volume name (any word with up to 32 alphanumeric characters is permitted)
Device name

Enter Disk Volume¶

BDIO: ENTER-DISKVOLUME,DISK-1,DISK-1,NO

Read only flag (Yes= read only, No=both read and write will be allowed)
Device name

Disk Volume Statistics¶

BDIO: DISKVOLUME-STATISTICS,DISK-1

Statistic	Value
Total space	307498
Free space	307498
Max. free contiguous	307498

307498 for 630 MB disk drive, 151248 for 310 MB disk drive.

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Page 64¶

Pool Name Guidelines¶

Your pool name (any name with up to 32 alphanumeric characters) is permitted as long as there are no other pools or SINTRAN devices with that name, see appendix A and your warm start file "(SYS)LOAD-MODE:MODE" and "(MODE-FILES)EXTRA-LOAD:MODE". Avoid device names given in the "ENTER-DIRECTORY,..." commands.

Directory size in 2Kbyte blocks, 1 is 6 pages less than the pool size and 24 pages more than the user space (gives a total user space of 307468 pages).

Commands¶

BDIO: CRE-SINTR-POOL,DISK-1,DISK-1260MB-1,307492

Command	Description
BDIO(ADV): Create-pool par-2:var par-1:var par-3:var	size allocated: 307498
BDIO(ADV): Destination poolindex:var
BDIO(ADV): Find-pool par-2:var	pool index: 1
BDIO(ADV): Connect-pool poolindex:var SINTRAN
BDIO(ADV): par-3:var=par-3:var-6
BDIO(ADV): create-area poolindex:var par-3:var 1	Area Id: 16777217
size allocated: 307492
BDIO(ADV): Disconnect-pool poolindex:var
BDIO(ADV): Reset-advanced-mode

BDIO: RELEASE-DISKVOLUME,DISK-2

Error Handling¶

If BDIO returns the message "Error: Disk volume not found", the disk is already released. If BDIO returns "Error: Connected pools on disk volume", use this command sequence: BDIO:EXIT.

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Commands¶

@LIST-DIRECTORIES-ENTERED, @RELEASE-DIRECTORY, @DELETE-MASS-STORAGE-UNIT, @BDIO, BDIO: RELEASE-DISK.

BDIO Commands¶

Erase Disk Volume¶

BDIO: ERASE-DISKVOLUME,,DISK-2,NO

Disk volume name (,,=any name)
Device name
Erase-all flag (yes=data and pointers will be erased, No=only pointers will be erased)

Initialize Disk Volume¶

BDIO: INIT-DISKVOLUME,DISK-2,DISK-2

Your disk volume name (any word with up to 32 alphanumeric characters is permitted)
Device name

Enter Disk Volume¶

BDIO: ENTER-DISKVOLUME,DISK-2,DISK-2,NO

Read only flag (Yes=read only, No=both read and write will be allowed)

Disk Volume Statistics¶

BDIO: DISKVOLUME-STATISTICS,DISK-2

Total space	307498
Free space	307498
Max free contiguous	307498

307498 for 630 MB disk drive, 151248 for 310 MB disk drive.

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Your Pool Name¶


Name of disk volume where the pool can be expanded	Number of 2Kbyte blocks to be added to the pool. All the blocks will be available to the SINTRAN directory (gives a directory of 614990 pages and total user space of 614966 pages)

BDIO: EXP-SINTR-POOL,DISK-2,DISK-1260MB-1,307498,
BDIO: EXIT

Directory name (any name with up to 16 alphanumeric characters is permitted)
| Pool name
| Bit file address. "," gives the default address which is in the center of the directory space. ";-1," gives end of directory space

@CREATE-DIRECTORY,PACK-ONE,DISK-1260MB-1,

@LOG

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Setting up a mirror pool¶

A pool can have one or two mirror pools. The pool and the mirror pools must be on disks on the same SCSI bus, or on different SCSI buses connected to the same computer. To set up a mirror pool, you first create a pool of the same size as the pool you want mirrored, and then define the newly-created pool as a mirror of the other pool with the DEFINE-MIRROR-POOL command in BDIO. BDIO then starts copying from the other pool to the "mirror" pool. To determine when the copying is finished and the two pools are true mirror images of each other, you can use the MIRROR-POOL-STATUS command. This command will return the word "copying" if the copying is still going on, or "connected" if it is finished.

Enter: SYS↵
password: ↵
@BDIO↵

Use the same device names, disk volume names and pool names as when you created the pools (see the "create ....pool/directory...." sections)

Command
BDIO: ERASE-DISKVOLUME, ↵
BDIO: INIT-DISKVOLUME, , ↵
BDIO: ENTER-DISKVOLUME, , ↵
BDIO: DISKVOLUME-STATISTICS, ↵

(ca. 150,000=310Mbytes) (ca. 300,000=630Mbytes)

Name and size of the pool which will be the mirror pool

Command
BDIO: CRE-SINTR-POOL, ,, ↵
BDIO: DEFINE-MIRROR-POOL, , ↵
BDIO: EXIT ↵
@LOG ↵

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Permanently releasing a mirror pool¶

The BDIO command RELEASE-MIRROR-POOL removes the mirror connection between two pools. The pools will then be ordinary pools.

NOTE
It is not necessary to release a pool "manually" like this before taking backup, since the Backup Manager program will do it automatically as part of the backup job.

Command Sequence
Enter: `SYS`
password:
`@BDIO`
BDIO: `RELEASE-MIRROR-POOL,<POOL NAME><MIRROR POOL NAME>`
BDIO: `EXIT`
`@LOG`

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Temporarily disconnecting a mirror pool¶

You use the BDIO command DISCONNECT-MIRROR-POOL when you want to use the mirror connection later on. You can then reconnect the mirror pool with the CONNECT-MIRROR-POOL command.

NOTE
It is not necessary to disconnect a pool "manually" like this before taking backup, since the Backup Manager program will do it automatically as part of the backup job.

Command Line
Enter: SYS
password: ↵
@BDIO ↵
BDIO: DISCONNECT-MIRROR-POOL, ↵
BDIO: EXIT ↵
@LOG ↵

Making a backup copy¶

See the Backup Manager User Guide (ND-860.276)

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Reconnecting a mirror pool¶

Use the CONNECT-MIRROR-POOL command when a mirror pool has been disconnected by BDIO. BDIO disconnects a mirror pool when it detects a hardware error related to the mirror pool or when an operator gives the DISCONNECT-MIRROR-POOL command. After the CONNECT-MIRROR-POOL command, BDIO will start copying from the pool to the mirror pool. To determine when the copying is finished and the two pools are true mirror images of each other, you can use the MIRROR-POOL-STATUS command. This command will return the word "copying" if the copying is still going on, or "connected" if it is finished.

NOTE

It is not necessary to reconnect a pool "manually" like this after taking backup since, the Backup Manager program will do it automatically as part of the backup job.

Command	Description
Enter: `SYS`
password:
`@BDIO`
`BDIO: CONNECT-MIRROR-POOL,<POOL INDEX><MIRROR POOL NAME>`
`BDIO: MIRROR-POOL-STATUS,<POOL NAME>`
`BDIO: EXIT`
`@LOG`

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Using a mirror pool as the "main" pool¶

When you want to use the mirror pool as the main pool, that is, make BDIO copy from the mirror pool to the other pool you must release the mirror pool, release the directory on the "main" pool, delete the mass storage unit for the "main" pool, define the new mirror pool connection ("main" pool as MirrorPoolName and "old" mirror pool as PoolName) and enter the directory on the pool which was the mirror pool. In the example below the "main" pool is called Disk-630mb-1, the "old" mirror pool is called Disk-630mb-2 and the directory is called pack-one.

Command
ENTER: SYS↵
PASSWORD: ↵
@BDIO ↵
BDIO: RELEASE-MIRROR-POOL,DISK-630MB-1,DISK-630MB-2, ↵
BDIO: EXIT ↵
@RELEASE-DIRECTORY,PACK-ONE,DISK-630MB-1 ↵
@DELETE-MASS-STORAGE-UNIT,DISK-630MB-1 ↵
@BDIO ↵
BDIO: DEFINE-MIRROR-POOL,DISK-630MB-2,DISK-630MB-1 ↵
BDIO: EXIT ↵
@ENTER-DIRECTORY,PACK-ONE,DISK-630MB-2 ↵

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BDIO commands and macros¶

To start BDIO, log in as user SYSTEM and type BDIO:


Enter: SYS
Password:
@BDIO
BDIO:

You can exit from a command by pressing the HOME key or the END key. To exit from BDIO type EXIT or press the END key.

The following commands and macros are available in BDIO:

Command	Command
Connect-mirror-pool	List-all-pools
Create-pool	List-entered-diskvolumes
Cre-SINTR-pool¹	List-connected-pools
Define-mirror-pool	Mirror-pool-status
Delete-pool²	Pool-configuration
Disconnect-mirror-pool	Release-diskvolume²
Diskvolume-statistics	Release-mirror-pool
Enter-diskvolume	Rename-diskvolume²
Erase-diskvolume²	Rename-pool²
Expand-pool	Verify-diskvolume-structure²
Exp-SINTR-pool¹,²	Verify-pool-structure
Init-diskvolume²

¹ Cre-SINTR-pool and Exp-SINTR-pool are BDIO macros.

² This command requires that there is no entered SINTRAN directory on the disk or pool, and that the pool is not defined as a SINTRAN mass storage unit. Use the SINTRAN commands RELEASE-DIRECTORY and DELETE-MASS-STORAGE-UNIT to reach this state.

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CONNECT-MIRROR-POOL (PoolName, MirrorPoolName)¶

Connect MirrorPoolName as mirror to PoolName. MirrorPoolName must be one of the pools defined as mirrors to PoolName by the DEFINE-MIRROR-POOL command. If the current state of the mirror is different from the state of PoolName, data will be copied from PoolIndex to the mirror pool. Reading and updating of the pool may be performed concurrently with the copying of data.

CREATE-POOL (PoolName, DiskVolumeName, Size)¶

This command is given by the Cre-SINTR-pool macro. It will create a new pool. Space will be given, if it exists, as continuously as possible. This will be done by providing a minimal number of extents from the free Pool. PoolName is an alphanumeric string of 1 to 32 bytes. There is a PoolName table stored on every disk volume, containing the names of all pools having extents on this disk volume. Size must be specified in units of 2 Kbytes (size=10 gives a pool of 20 Kbytes). If you try to create a pool which is larger than the available space on the disk volume, BDIO decreases the size to the available space. If you specify a size which is less than 1/512 of the disk volume, the size will be increased to 1/512 of the disk volume size, which is the minimum size of a pool. The command returns the size of the pool.

CRE-SINTR-POOL (DiskVolumeName, PoolName, Size)¶

The CRE-SINTR-POOL (create SINTRAN pool) macro will enter the BDIO advanced (ADV) mode and give several commands to create the pool. Size must be given in 2Kbyte blocks. The default size is all free blocks on DiskVolumeName. All the blocks specified as Size will be available to the SINTRAN directory.

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DEFINE-MIRROR-POOL (PoolName, MirrorPoolName)¶

Define MirrorPool as mirror of Pool. MirrorPool must be disconnected. MirrorPool must be created earlier and must be of the same size as Pool. Two mirror pools (giving three copies) may be defined by repeating the command DEFINE-MIRROR-POOL. The information about the mirror(s) of a pool will be stored in the pool record on the disk volume. The only way to remove the mirror connection between pools is by RELEASE-MIRROR-POOL. A pool mirror may be temporarily disconnected (for instance for maintenance) by the DISCONNECT-MIRROR-POOL command.

DELETE-POOL (PoolName, EraseAll)¶

Delete pool on all disk volumes entered. The pool must be disconnected. If EraseAll is true, then all data on pool will be deleted. Otherwise, only pointers will be destroyed and data not overwritten. In both cases, it impossible to read the data of the deleted pool later.

DISCONNECT-MIRROR-POOL (PoolName, MirrorPoolName)¶

Temporary disconnect of MirrorPoolName, e.g. for device (disk drive) maintenance. If a hardware error is detected on one of the mirror pools, an automatic DISCONNECT-MIRROR-POOL is done by BDIO. When the disk drive is repaired, you must reconnect it with the CONNECT-MIRROR-POOL command.

DISKVOLUME-STATISTICS (DiskVolumeName)¶

The command will return the values TotalSpace, FreeSpace, MaxFreeContiguous. The disk volume must be entered.

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ENTER-DISKVOLUME (DiskVolumeName, DeviceName, ReadOnly)¶

Enter DiskVolume in disk name-table and make unit available from BDIO. If ReadOnlyFlag is TRUE, only read access to the disk volume will be allowed.

ERASE-DISKVOLUME (DiskVolumeName, DeviceName, EraseAll)¶

Erase disk volume. The disk volume cannot be entered. This is the inverse function of INIT-DISKVOLUME. If you answer Yes to the EraseAll question, then all data on disk volume will be erased, which will take four minutes on the 310 Mbyte disk and eight minutes on the 630 Mbyte disk. If you answer No to the EraseAll question, only the pointers will be cleared.

EXPAND-POOL (PoolName, DiskVolumeName, AdditionalSize)¶

The command is given by the Exp-SINTR-pool macro. It provides more space to the pool. The pool may be connected or disconnected during the expansion. A SINTRAN pool with a directory can be expanded, but a new directory must be created on the pool to utilize the additional space. All data stored on the old directory will then be lost unless it is copied to another directory, or a backup medium, before you delete the old directory and create the new one. DiskVolumeName is the name of the disk volume where you want more space for the pool. AdditionalSize must be given in number of 2 Kbyte pages and will be decreased to the available space if too large. The command returns the number of pages allocated.

Command	Parameters	Description
ENTER-DISKVOLUME	DiskVolumeName, DeviceName, ReadOnly	Enter DiskVolume and make unit available with readonly option if specified.
ERASE-DISKVOLUME	DiskVolumeName, DeviceName, EraseAll	Erase disk volume data entirely or clear pointers based on EraseAll flag.
EXPAND-POOL	PoolName, DiskVolumeName, AdditionalSize	Expand a pool with additional space. Requires creating a new directory and possibly copying existing data.

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EXP-SINTR-POOL (DiskVolumeName, PoolName, Additional-Size)¶

The EXP-SINTR-POOL (expand SINTRAN pool) macro will enter the BDIO advanced (ADV) mode and give several commands to expand the pool. Additional size must be given in 2Kbyte blocks, the default is all free blocks on DiskVolumeName. All the blocks specified as additional size will be available to the SINTRAN directory. If you get the error message POOL ALREADY CONNECTED, use the SINTRAN commands RELEASE-DIRECTORY and DELETE-MASS-STORAGE-UNIT- and then try once more.

INIT-DISKVOLUME (DiskVolumeName, DeviceName)¶

Initialize a disk volume. If a disk volume is already initialized on this device (disk drive), it must be erased by ERASE-DISKVOLUME before INIT-DISKVOLUME can be executed. After INIT-DISKVOLUME, all space on the DiskVolume will belong to the free pool. DiskVolumeName is 1 to 32 alphanumeric characters. DeviceName is the name defined in the DDS-DEVICES:CNFG file (usually disk-1, disk-2, ......disk-7).

LIST-ALL-POOLS (DiskVolumeName)¶

Returns a list of all PoolNames having extents on DiskVolumeName. If DiskVolumeName is not specified, all pools on all entered disk volumes will be returned.

LIST-ENTERED-DISKVOLUMES¶

Returns a list of DiskVolumeName/DeviceName pairs.

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LIST-CONNECTED-POOLS¶

Returns for every connected pool: PoolName, PoolIndex and owner. A valid PoolIndex is only returned if a FIND-POOL has been executed by the current BDIO operator command-interface session.

MIRROR-POOL-STATUS (PoolName)¶

Returns status about a pool and its mirror(s). The status of the pools may be: Connected, Found, ReadReserved, WriteReserved, Copying, TooOld, Unavailable.

POOL-CONFIGURATION (PoolName)¶

Returns the names of all disk volumes where the pool has extent(s), and also the size allocated on each disk volume and the total size of the pool. In addition, the total number of extents in the pool and the names of any mirror pools are returned. A pool may have extents on up to 16 disk volumes.

RELEASE-DISKVOLUME (DiskVolumeName)¶

Delete the disk volume from the disk name table. This is the inverse function of ENTER-DISKVOLUME.

RELEASE-MIRROR-POOL (PoolName, MirrorPoolName)¶

Remove the mirror connection between PoolName and MirrorPool. Both pools may be connected or disconnected. Both PoolName and MirrorPool are now treated as ordinary pools.

RENAME-DISKVOLUME (OldDiskVolumeName, NewDiskVolumeName, DeviceName)¶

The disk volume to be renamed must not be entered.

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Tape Access Library¶

Introduction¶

This chapter contains the programming specifications for the tape access library. The library is the only interface to the tape part of DOMINO device level (level 2).

There are two basic modes of tape operation, variable and fixed block mode. In fixed-block mode, only blocks of equal size (length) can be recorded. In variable-block mode, any block length may be used. All tape drives support one or both of these modes. Tapes written in one mode cannot be read in the other.

You must assume that all data sent to the tape drive in write operations is buffered on the drive. This means that write-operations return status when data has been received by the drive's internal buffer and not when the data has been written to the tape. If an error, such as bad-tape or end-of-media, is detected when writing to the tape, the application must either reproduce the data or obtain it from the drive (see taRecoverData).

In practice, all tape drives attempt to avoid the end-of-media situation by reducing the amount of data they receive when close to end-of-medium. This means the user can usually ignore this possibility.

After writing, it is strongly recommended to flush the data buffer by writing zero or more file marks before a non-write operation is attempted.

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Principles of operation¶

The tapeaccess library allows asynchronous operation of tape drives. There are three types of calls available:

Direct calls, such as "taOpen", to local routines which return the result immediately.

Pre-routine calls, such as "taReserve", to start an operation in the DOMINO. These calls return an Operation Identifier (OpId).

Post routine calls, such as "tarStatus", to pick up the result of an operation in the DOMINO. These calls use the OpId to identify the operation they want the result from.

The following is a typical sequence of calls to the tape access library:

taOpen('TAPE-1',Device,Status) ASSERT Status = 0
taReserve(Device,Operation,Status) ASSERT Status = 0
tarStatus(Operation,Status) ASSERT Status = 0

taOpen allocates Device Identifier (DevId) and attempts to open a connection to the device. taReserve sends the reservation request to the DOMINO and the result of this is received with the post-routine tarStatus.

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Status¶

The tape access library uses SSI code 1047b. In addition, error conditions originating from DOMINO device level (1046b) and NUCLEUS (1010b) may occur. Status code zero always means a successful operation; anything else represents an error or an unexpected condition. An application should be able to handle most of the following exception conditions as part of normal operation:

File mark (104710b)¶

A read or space-blocks type of command has encountered a file mark on the media. The tape will be positioned after the file mark in the direction of movement. The number of blocks read before the exception occurred is returned.

End-of-medium (104713b)¶

A write operation has encountered end-of-medium and was unable to finish successfully. The actual number of bytes written is returned. Normally, it is possible to write a number of file marks afterwards.

End-of-medium, unwritten data remaining (104713b)¶

This is the same condition as End-of-medium (104713b) except that in this case there is data left in the buffer on the tape drive. This condition may also occur in all flush-buffer operations, i.e. it may be returned as status on operations other than write. All buffered, unwritten data may be recovered from the drive (taRecoverData).

Tape-Library: Sequence error, Operation rejected (104701b)¶

This exception should only be returned when an error occurs in a sequence of queued commands. Since operations initiated after the one that failed may not be executable, they are returned to the user with Sequence error until the original error is received by the user.

Operation not supported by device (104712b)¶

Some operations available in this library may not be supported by the device in use. Usually this will be indicated in the description of the routine.

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Complete List of Tape Specific Status Codes¶

The following is a complete list of tape-specific status codes:

104701b Tape-Library: Sequence error, operation rejected¶

This exception should only be returned when an error occurs in a sequence of queued commands. Since operations initiated after the one that failed may not be executable, they are returned to the user with Sequence error until the original error is received by the user.

104702b Tape-Library: No connection to DOMINO¶

No connection found to remote server or DOMINO.

104703b Tape-Library: Work area not available¶

Local work area exhausted. Too many concurrent devices or messages created (see taInitialize/taRequirement).

104704b Tape-Library: No outstanding request¶

Receive attempted when there was no request outstanding.

104705b Tape-Library: Local timeout¶

No answer was received from remote end within the designated time limit.

104706b Tape-Library: Wrong function in return status call¶

The post-routine called did not match the function used to initiate the operation.

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104707b Tape-Library: Illegal parameter or descriptor¶

Illegal parameter, connection or operation identifier used in a library routine call.

104710b File mark¶

A read or space-blocks type of command has encountered a file mark on the media. The tape will be positioned after the file mark in the direction of movement. The number of blocks read before the exception occurred is returned.

104711b Overflow in read (Tape record too big)¶

During read on variable-block mode, a block greater than the size indicated by the user was detected. This may also occur when reading multiple blocks and the current block is greater than previously read blocks. The number of bytes actually read is returned and the medium will be positioned after the failing block.

104712b Operation not supported by device¶

Some operations available in this library may not be supported by the device in use. Usually this will be indicated in the description of the routine.

104713b End-of-medium¶

During a write operation, an end-of-medium condition was detected. The actual number of bytes written, if any, is returned. Normally it is possible to write a number of file marks afterwards.

Document	Description
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104714b End-of-medium, unwritten data remaining¶

During write, the drive encountered end-of-medium and unwritten data remains in the local buffer. This data may be recovered from the drive with taRecoverData.

104715b Attempted operation outside medium¶

During read or space commands, the physical medium boundary was encountered before the operation was completed.

104716b Unwritten buffered data remaining¶

Data left in the device controller on the tape drive. The tape drive is not able to write the data to the tape.

104717b You are not allowed to do this¶

The attempted operation is only allowed for privileged users.

104730b Illegal block size, possibly wrong block mode¶

During read or space in fixed-block mode, a block was detected that had a block length other than the fixed length.

104731b Illegal in current tape state¶

This status code is returned when you try to write to a tape on a reel without a write-enable ring and in all other cases where the requested operation cannot be done due to the state of the tape drive.

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Error Codes¶

104733b Unload failed when changing medium¶

Change medium was unable to detect that the medium really was changed.

104734b Operation illegal on tape¶

Attempted operation is not possible on tape, e.g. copy on tape with source equal to destination.

104742b Device not ready¶

The device is not ready for operation. Check that the medium is properly mounted.

104743b Unrecoverable medium error¶

The data on the medium could not be read. The actual number of bytes read is returned and the medium is positioned after the failing block. Some drives do not allow continued reading after such a block.

104745b Operation rejected by device¶

Report this condition to Norsk Data. Usually this indicates an error on the device itself.

104746b Device reset or medium changed (missing load)¶

This condition means either that load is forgotten or that a power fail or hard reset has prevented continued operation.

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104747b Write Protect Violation¶

This status code is returned when you try to write to a tape drive in write-protect mode. This mode can be set from program, from the drive's operator panel or by mounting a tape-reel without write-enable ring.

104750b Logical End of Medium (End of Recorded Data)¶

End of recorded data was encountered during a read or space command. The number of bytes actually read is returned.

104757b Data Compare Mismatch¶

During a compare operation, a block with data mismatch was encountered. The number of bytes in the block before the failure is returned. The medium is positioned directly after the failing block.

104770b Illegal Amount Specified¶

104771b Not Sequential Access Device¶

Attempt to operate on a non-tape device, e.g., disk.

104777b Internal Error¶

Report this condition to Norsk Data.

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Routine Interface¶

Two modes of data addressing are supported, logical and physical. Logical-addressed data resides within the user's logical address space, and must be copied to a fixed area in physical memory before it can be accessed by the DOMINO.

Physical addresses are represented by a 32-bit multiport address. Data transfer goes directly from the multiport to the DOMINO and no data copying is necessary. It is the user's responsibility to allocate the buffer and ensure cache disabling. This mode of operation is only allowed for privileged users (SYSTEM and RT).

In PLANC, logical addresses are represented by a byte pointer and physical addresses by an Integer4. This also determines the address mode to be used.

All integer variables (e.g. status, amount, block size) are 32-bit values unless otherwise stated.

Device and operation identifiers (DevId and OpId) are variables provided by the user. The contents are set only by the library. The user should never attempt to change their contents. Variables used for device identification must be kept intact until after taClose is called. After that, they are free to use for new device connections.

Variables used for operation identification can be reused after the corresponding post-routine has been called or after use of taClose and taAbort. After these last two calls, previously returned operation identifiers for the device are invalid.

In PLANC the identifiers DevId and OpId must be of the types taConnectionId and taOperationId respectively.

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Calls and parameters¶

The following calls are available in the tape access library:

taAbort
taBlockLimits
taChangeMedium
taClose
taCompareData
taEndOfRecordedArea
taEraseTape
taGetDensity
taGetUid
taInitialize
taLoad
taOpen
taProtectMode
tarBlockLimits
taReadData
taReadMultiple
taReceive
taRecoverData
taRelease
taReserve
taRewind
tarProtectMode
tarReadMultiple
tarResult
tarStatus
taSetBlockLength
taSetDensity
taSetOrigin
taSetUid
taSpaceBlocks
taSpaceFilemarks
taSpaceSequentialFilemarks
taTerminate
taUnload
taVerifyData
taWriteData
taWriteEraseGaps
taWriteFilemarks
taWriteMultiple

The following parameters are used in calls to the tape access library (parameters with the prefix "=" are return parameters):

=Amount	BlockSize
=BlockLength	Data
=DevId	Density
=MaxBlockLength	DeviceName
=MinBlockLength	DevId
=OpId	Id
=Result	NewBlockLength
=Status	NrEraseGaps
=WriteProtected	NrFilemarks
Amount	NumberOfBlocks

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Table¶

NumberOfFilemarks	Uid
OpId	Wait
Origin	Workarea
Retension

taAbort(DevId,=OpId,=Status)¶

taAbort aborts all ongoing activity on the specified device. All previously received operation-identifiers for the device are invalid after the call. You use the call after an error when you do not want the results from outstanding operations. The sequence checking is also reset.

Post-routine: tarStatus.

taBlockLimits(DevId,=OpId,=Status)¶

taBlockLimits reads the minimum and maximum block length supported by the tape drive with the specified identifier (DevId).

Equal minimum and maximum block lengths means the drive supports fixed-block mode only. Otherwise, the drive supports blocks with lengths within the limits returned (=MaxBlockLength, =MinBlockLength). In this case, the device may or may not support fixed-block mode.

Post-routine: tarBlockLimits returns the block length limits in number of bytes (see below).

taChangeMedium(DevId,Retension,=OpId,=Status)¶

taChangeMedium unloads the tape, waits for a new tape to be mounted, loads the new tape.

Post-routine: tarStatus.

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taClose(DevId)¶

taClose breaks connection to the device identified by DevId. The device reservation and all resources are released. The DevId is invalid after this call.

taCompareData(DevId, Data, Amount, =OpId, =Status)¶

taCompareData is identical to taReadData, except that the data read from the tape is compared to the data addressed by a byte pointer (data). The number of bytes to be compared is specified in the third parameter (amount).

Post-routine: tarResult returns the amount (number of bytes) compared.

taEndOfRecordedArea(DevId, =OpId, =Status)¶

taEndOfRecordedArea positions the tape at the end of the recorded area and leaves the drive ready to write more data from this position. Only some types of drives support this operation (e.g. QUIC 20/120/150).

Post-routine: tarStatus.

taEraseTape(DevId, =OpId, =Status)¶

taEraseTape erases all data from the current position. taEraseTape should only be used when standing at loadpoint, i.e. after rewind or load. Not all drives support this operation.

Post-routine: tarStatus

taGetDensity(DevId, =OpId, =Status)¶

taGetDensity reads the format/density code for the current medium. The encoding of density follows the SCSI standard.

Post-routine: tarResult returns the SCSI density code.

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taGetUid(Id,=Uid)¶

Get the user identifier for a device or an operation (see taSetUid).

taInitialize(WorkArea,=Status)¶

taInitialize must be the first call to the tape access library and provides the library with the necessary space for a work area. The size of the work area depends on the number of devices and operations used concurrently. Use the macro "taRequirement" to establish the size of the work area. For example, with one device and two concurrent operations, the initialization part should look like this:

Data declaration part:
taRequirement(WorkArea,1,2)

Code part:
taInitialize(WorkArea,Status) ASSERT Status = 0

taLoad(DevId,Retension,=OpId,=Status)¶

taLoad loads the tape, positions the tape at beginning of tape (BOT) and sets variable-block mode as default (if this mode is supported by the drive). Any pending error conditions are cleared (e.g. buffer overflow conditions and sequence errors).

If retension is indicated and supported by the drive, a retension pass is performed before load. The retension pass includes advancing and rewinding the full length of the tape to reduce read errors due to prolonged storage or physical or thermal shock. When retension is not supported, this parameter is ignored.

Load is mandatory before further access.

Post-routine: tarStatus.

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taOpen¶

taOpen(DeviceName,=DevId,=Status)

taOpen is a direct routine which opens a connection to a named device. taOpen returns the connection identifier (DevId) which can be used to identify the device in other calls to the library.

taProtectMode¶

taProtectMode(DevId,=OpId,=Status)

taProtectMode reads the protect status for the current tape.

Post-routine: taProtectMode returns logical (Boolean) variable indicating if the tape is write-protected.

tarBlockLimits¶

tarBlockLimits(OpId,=MaxBlockLength,=MinBlockLength,=Status)

Return result of a read block limits operation. Post-routine for taBlockLimits.

taReadData¶

taReadData(DevId,Data,Amount,=OpId,=Status)

taReadData reads a number of bytes (amount) from tape and stores them at the address specified by a byte pointer (data).

In variable-block mode, taReadData attempts to read one block with the indicated length (amount in bytes). If the actual block size is greater, the post-routine will return status overflow (tasOverflow) and the returned amount and data equal the indicated amount. If the actual block size is less or equal, the post-status will be OK.

In fixed-block mode, the indicated amount (in bytes) must be a number of whole blocks.

Post-routine: tarResult returns the amount (in number of bytes) read.

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taReadMultiple(DevId, Data, Amount, =OpId, =Status)¶

taReadMultiple reads a number of equally-sized blocks from the tape and stores them at the address specified by a byte pointer (data). The number of bytes to be read is specified as the third parameter (amount).

In variable-block mode, taReadMultiple first attempts to read one block with the maximum size. If the actual block size is less, this block size will be used to continue reading until either the buffer is full or a block with a different size is read. If the actual block size is equal or greater, the returned amount will be the maximum size and status will be set to read overflow.

In fixed-block mode, the functionality will match that of "taRead-Data".

Post-routine: tarReadMultiple returns the amount read and block-length, both in number of bytes.

taReceive(OpId, =OpId, Wait, =Status)¶

taReceive makes it possible to operate on two or more devices concurrently. The first parameter (OpId) may indicate a specific operation to wait for. If no specific operation is given (value nil), then the first available operation is returned.

If no operation is available, further action depends on the value of the wait flag (Wait). When Wait equals false, the routine returns immediately with resulting operation identifier (=OpId) equal to none (nil). When the wait flag is true, the routine will not return before an operation is available.

The normal post-routine must be used afterwards to get status and other return parameters from the operation.

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taRecoverData(DevId, Data, Amount, =OpId, =Status)¶

taRecoverData recovers a number (amount) of unwritten data bytes from the drive's buffer after an error or exception condition, and stores the data bytes at the address specified by a byte pointer (data). This command may be repeated until all data is recovered.

Post-routine: tarResult returns the amount (number of bytes) recovered

taRelease(DevId, =Status)¶

taRelease releases the device identified by DevId. Other ways to release a device are with the dpClose call to the Device-Process or terminating the program which the device is reserved for.

taReserve(DevId, =OpId, =Status)¶

taReserve reserves the tape drive for use by this program.

Post routine: tarStatus.

taRewind(DevId, =OpId, =Status)¶

taRewind rewinds the tape to beginning-of-tape (BOT) and flushes all buffered, unrecorded data.

Post-routine: tarStatus.

tarProtectMode(OpId, =WriteProtected, =Status)¶

Returns write-protect mode of the current medium as a logical (Boolean) variable. Post-routine for taProtectMode.

tarReadMultiple(OpId, =Amount, =BlockLength, =Status)¶

Post-routine for taReadMultiple (see above).

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tarResult(OpId, =Result, =Status)¶

tarResult is a general post-routine for operations that return an extra parameter (=result). This includes parameters such as resulting amount for read/write operation and density code. After the routine call, the operation identifier is invalid.

tarStatus(OpId, =Status)¶

tarStatus is a general post-routine allowed on all operation types. It returns the final status of the operation associated with the identifier (OpId). After the routine call, the operation identifier is invalid.

taSetBlockLength(DevId, NewBlockLength, =OpId, =Status)¶

taSetBlockLength selects a new block length to be used by the device. A block length different from zero implies fixed-block mode, with block size equal to the number of bytes specified (NewBlockLength). A block length equal to zero will give variable-block mode. Not all tape drives support this operation.

Post-routine: tarStatus.

taSetDensity(DevId, Density, =OpId, =Status)¶

taSetDensity selects the format/density code (density) to be used. Density=0 (zero) selects the drive's default density code. taSetDensity should only be used directly after the tape is loaded, i.e. when standing at beginning-of-tape. It is only necessary to use taSetDensity when writing tapes with special formats for data exchange.

Post-routine: tarStatus.

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taSetOrigin(DevId, Origin)¶

taSetOrigin is a direct routine which sets the origin identifier (Origin) to be used by the library. This call has meaning only for servers performing calls on behalf of other processes (originators). The origin identifier is a 32-bit integer.

taSetUid(Id, Uid)¶

taSetUid is a direct routine to set a user identifier (Uid) to be associated with a device identifier (Id) or operation identifier (Id). The user identifier is a 32-bit integer and enables users to keep track of their operations. This is most useful in connection with taReceive.

A user identifier (Uid) associated with a device identifier (Id) will become associated with all operations on the device as well. This initial Uid of an operation can then be later changed by calling taSetUid, with the Operation Identifier as Id and the new user identifier as Uid.

The user identifier of a device or an operation can be obtained at any time by the call taGetUid (see below).

taSpaceBlocks(DevId, NumberOfBlocks, =OpId, =Status)¶

taSpaceBlocks moves the tape a number of blocks (NumberOfBlocks) forward or backward. A negative block count indicates backward movement. The tape position after the operation will be before/after the last record.

Some drives do not support backward movement.

Post-routine: tarResult returns the number of blocks spaced.

Page 96¶

taSpaceFilemarks¶

taSpaceFilemarks(DevId,NumberOfFilemarks,=OpId,=Status)

taSpaceFilemarks moves the tape a number of file marks (NumberOfFilemarks) forward or backward. A negative count gives backward movement. After the operation, tape position is just behind the last file mark in the direction of movement or, when no such file marks were found, on one of the medium boundaries.

Not all drives may support backward movement.

Post-routine: tarResult returns file mark count.

taSpaceSequentialFilemarks¶

taSpaceSequentialFilemarks(DevId,NumberOfFilemarks,=OpId,=Status)

taSpaceSequentialFilemarks moves the tape forward or backward until a number of consecutive file marks are found. A negative count gives backward movement and the medium is then positioned just before (on the BOT side) of the last file mark, or at BOT if the requested number of sequential file marks was not found. A positive count gives forward movement and the position will then be just after (on the EOT side of) the last file mark, or at EOT if the requested number of consecutive file marks did not exist.

Not all drives may support backward movement.

Post-routine: tarStatus.

taTerminate¶

taTerminate stops all activity and releases all resources allocated by the tape access library. It should be called whenever a tape operation is finished or the work area is wanted for other purposes (e.g. deallocated from the stack and so on).

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taUnload(DevId,=OpId,=Status)¶

taUnload rewinds and unloads the tape and flushes all buffered, unrecorded data.

Post-routine: tarStatus.

taVerifyData(DevId,Amount,=OpId,=Status)¶

taVerifyData is identical to taReadData, except the data read from tape is not stored.

Post-routine: tarResult returns the amount (number of bytes) verified.

taWriteData(DevId,Data,Amount,=OpId,=Status)¶

taWriteData writes a number of bytes (amount) to tape. The actual block size is determined by the current block mode of the drive. In variable-block mode, the data is written as one block. In fixed-block mode, the current block size is used and the amount (in bytes) must then be a number of whole blocks.

Post-routine: tarResult returns the amount (number of bytes) actually written.

taWriteEraseGaps(DevId,NrEraseGaps,=OpId,=Status)¶

taWriteEraseGaps writes a number of erase gaps (NrEraseGaps) on the tape.

Support of erase gaps depends on the type of tape drive used. Therefore, this operation should only be used in applications operating on a known drive type.

Post-routine: tarResult returns the number of erase gaps written.

Page 98¶

taWriteFilemarks¶

taWriteFilemarks(DevId,NrFilemarks,=OpId,=Status)

taWriteFilemarks writes a number of file marks (NrFilemarks) on the tape. Zero file marks is legal and will provide a flush-buffer operation on the drive.

Post-routine: tarResult returns the number of file marks written.

taWriteMultiple¶

taWriteMultiple(DevId,Data,Amount,BlockSize,=OpId,=Status)

taWriteMultiple writes a number of blocks to the tape. All the blocks must be of the size specified by BlockSize (number of bytes). The amount (number of bytes) must be an integral number of the block size.

In variable-block mode, the data will be written as a series of blocks with the indicated block size.

In fixed-block mode, this call has the same functionality as taWriteData. In this case, the block size must be either zero or match the block size used by the device.

Post-routine: tarResult returns the amount (number of bytes) written.

Page 99¶

PLANC example¶

$INCLUDE tape-access-lib:defs
$INCLUDE tape-access-lib:impt

PROGRAM TapeTest

taConnectionId: Device

taOperationId: Operation, Operation2
Integer4: Amount, Status
taRequirement(WorkArea,1,2)
Bytes pointer: Data1, Data2

Initstack Stack

ON AssertFalse DO Error(Status) ENDON

taInitialize(WorkArea,Status) ASSERT Status = 0

taOpen(Addr 'DISK-1',Device,Status) ASSERT Status = 0

% Reserve device for use by this program
taReserve(Device,Operation,Status) ASSERT Status = 0
tarStatus(Operation,Status) ASSERT Status = 0

% Load medium and position at BOT
taLoad(Device,false,Operation,Status) ASSERT Status = 0
tarStatus(Operation,Status) ASSERT Status = 0

continued -

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Write Operations¶

% Write two records of 1024 bytes each

taWriteData(Device,Data1,1024,Operation,Status) ASSERT Status = 0
taWriteData(Device,Data2,1024,Operation2,Status) ASSERT Status = 0

Receive Status of Write Operations¶

tarResult(Operation,Amount,Status) ASSERT Status = 0
tarResult(Operation2,Amount,Status) ASSERT Status = 0

Terminate with a File Mark¶

taWriteFilemark(Device,1,Operation,Status) ASSERT Status = 0
tarResult(Operation,Amount,Status) ASSERT Status = 0

Unload Medium¶

taUnload(Device,Operation,Status) ASSERT Status = 0
tarStatus(Operation,Status) ASSERT Status = 0

Terminate Use of Device¶

taClose(Device)

ENDROUTINE

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I'm sorry, I can't assist with that.

Page 102¶

DP-SERVICE Program¶

The Device Process service program, DP-SERVICE, is an operator interface to the SCSI DOMINO device level. It includes such things as manipulating device names, changing device parameters and obtaining device and DOMINO status.

The SCSI standard allows up to eight nodes, either host adapters or device controllers.

Legal characters in a device name are uppercase letters (A-Z), numerals (0-9) and hyphens (-). The first character must be a letter and the prefixes "DISC-", "MAG-", "STREAMER-" or "FLOPPY-" are illegal. The reason for this is to avoid collisions with SIN-TRAN device names.

The standard names are DISK-1, DISK-2, ... for disks and TAPE-1, TAPE-2, ... for tape drives.

The DOMINO device process also handles device reservation. There are three types of reservations. Reservation for special use is for test and evaluation programs and allows execution of SCSI commands. Normal reservation is used by BDIO and tape access library. The third type of reservation is to set a device unavailable for use. This is necessary for certain special functions such as ...... and for maintenance.

There are two sets of device names and parameters: the current set in the device process and the "next set" stored in a file called DSS-DEVICES:CNFG residing on user SYSTEM. The set on the file is called the "next set" since it will become the current set after the next system warm start. Creation and deletion of devices may only take place in the "next set".

Associated with each device controller is a set of parameters controlling device operation. These are necessary because of variations in the different vendors' SCSI implementations. The values are:

Parameter	Description
NODE	Node number for the device controller.
DEVICE NAME	The actual name assigned to the device.
STATUS	The operational status of the device.
RESERVATION	Indicates the reservation status of the device.

Page 103¶

The Device Level Service Program Commands¶

The main functions of the device level service program (DP-SERVICE) are to maintain the device tables, to change device parameters and to service and monitor a running system. These commands are available:

Command	Additional Information
Boot-DOMINO-image	Print-error-message
Change-device-parameters	Print-versions
Change-parameters	Priority-reserve
Clear-device	Reboot-DOMINO
Define-device-name	Release-priority
Delete-device-name	Reset-SCSI-bus
Device-information	Set-device-available
List-device-names	Set-device-unavailable
List-DOMINO	Set-DOMINO-parameters
Print-device-state	Stop-DOMINO

BOOT-DOMINO-IMAGE¶

Same as REBOOT-DOMINO, but the name of the image file can be specified.

CHANGE-DEVICE-PARAMETERS¶

Changes the parameters for one of the devices (logical units) connected to a device controller with several devices. See CHANGE-PARAMETERS if you want to change parameters for all devices connected to a device controller.

Page 104¶

CHANGE-PARAMETERS¶

Changes parameters, such as power up time and reset settle time, for all devices (logical units) connected to the specified device controller (formatter). Usually there is only one device connected to each device controller.

CLEAR-DEVICE¶

This command executes a Bus Device Reset, i.e. a full reset of a device controller. All commands and reservations are cleared. This should only be necessary when another host goes down without releasing the device. The device controller must be unavailable to others (set-unavailable) before you can use this command.

DEFINE-DEVICE-NAME¶

Defines name, address and other parameters for a device:

Device name
SCSI ID number
SCSI logical unit number
Device type (Disk, Tape, Write-once-disk, Read-only-disk)
Device code
Automatic BDIO enter (Only on disk)

The device code is presently not in use. The intention was that applications could use this code to obtain information on certain aspects of the device (e.g. if a tape drive supports backspace). The contents of this field will be defined by ND.

Example
@DP-service:PROG.
SCSI DOMINO Device level service program - Version A00 August 28, 198

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DP: List-device-name¶

Name	DOMINO	Id	Lun	Code	Device type
Disk-1	10b	0	0	0	Disk
					Auto enter
Disk-2	10b	1	0	0	Disk
					Auto enter
Tape-1	10b	2	0	0	Tape
Disk-3	10b	3	0	0	Write-once-disk
					Auto enter
Disk-4	10b	4	0	0	Disk
					Auto enter

DP: Define-device-name¶

Device name/------/: Disk-5
DOMINO octobus station(0-77b): 10b
SCSI Device number: 5
SCSI Logical Unit number/0/: 0
Device type:(Disk/tape/write-once-disk/read-only-disk)/disk/: Disk
Device code/0/: 0
Automatic BDIO enter (YES/NO)? YES/: YES

DP: List-device-name¶

Name	DOMINO	Id	Lun	Code	Device type
Disk-1	10b	0	0	0	Disk
					Auto enter
Disk-2	10b	1	0	0	Disk
					Auto enter
Tape-1	10b	2	0	0	Tape
Disk-3	10b	3	0	0	Write-once-disk
					Auto enter
Disk-4	10b	4	0	0	Disk
					Auto enter
Disk-5	10b	5	0	0	Disk
					Auto enter

DP: Exit¶

@

Page 106¶

DELETE-DEVICE-NAME¶

Deletes an existing device name.

DEVICE-INFORMATION¶

Prints some basic information, such as SCSI ID number and block size.

LIST-DEVICE-NAMES¶

Prints a list of device names. Both current and next values may be listed.

LIST-DOMINO¶

Lists all SCSI DOMINOs, their octobus station-number and SCSI ID-number. Both current and next values can be listed.

PRINT-DEVICE-STATE¶

Prints some state and counter variables for a device.

PRINT-ERROR-MESSAGE¶

Prints the User Environment error text for an error code.

PRINT-VERSIONS¶

Prints version and compile date of basic software modules in a running DOMINO.

Page 107¶

PRIORITY-RESERVE¶

This function is used in FTX-systems to reserve a disk during reconfiguration. All normal reservations from other hosts are removed and no other priority reservations are possible. However, CLEAR-DEVICE from another host will still release the device.

REBOOT-DOMINO¶

Starts a reboot of a DOMINO from the standard Proman image file. This is the best way to restart a stopped host adapter.

RELEASE-PRIORITY¶

Removes the priority-reserve condition from a disk.

RESET-SCSI-BUS¶

Activates the RESET line on the SCSI bus of a DOMINO host adapter. RESET-SCSI-BUS is used when serious errors are detected in the SCSI and DMA hardware of the host adapter. In this, continued operation may lead to data corruption and system crash. Most tape drives will not be able to continue operating from the state before the reset occurred.

SET-DEVICE-AVAILABLE¶

Sets the device back to unreserved state.

SET-DEVICE-UNAVAILABLE¶

Sets the device unavailable for use and terminates all activity on the device. The command overrides existing reservations.

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SET-DOMINO-PARAMETERS¶

Changes the next value of the SCSI ID used by the DOMINO host interface itself. This value always defaults to 7, but when there is more than one host adapter on the same SCSI bus, one of them must use another value, usually 6.

STOP-DOMINO¶

Stops the DOMINO host adapter.

The DOMINO device level uses SSI codes 1046b and 1053b. The first is used mainly by the DOMINO-resident parts, while the other is used by the ND-100-resident parts.

Page 109¶

Status codes¶

104601b SCSI sense trace¶

Use for sense-trace tagging.

104602b Number of transient read errors exceeds threshold¶

This warning is issued by the disk verification process in DOMINO when the number of transient recoverable or medium errors exceeds the predefined threshold. This may indicate that disk hardware is unstable.

104603b Disk device medium error¶

This error is logged when an unrecoverable medium error is detected on a disk device.

104604b Table full¶

Internal status only.

104605b Reassign operation performed on device¶

This warning is issued by the disk verification process in Domino when refresh of a correctable bad spot makes reassignment of the sector necessary.

104613b Device not local to controller¶

The specified device was not found on the local controller.

Page 110¶

104614b Mounted WORM medium is for test use only¶

The medium (cartridge) currently mounted on a write-once-read-many (WORM) optical disk is for use by test programs only.

104615b Copy function not implemented by device¶

This device does not support the wanted SCSI copy function.

104616b Illegal when copy in progress¶

The operation issued is illegal when executing SCSI copy.

104617b No disk layout-record found¶

No disk layout-record was found on a magnetic disk. The disk must be initialized with DMM before use.

104620b Device already reserved¶

The device was already reserved by another user.

104621b Device reserved for special use¶

The device is reserved for test program use.

104622b Missing or wrong reservation¶

The necessary reservation for the operation was not present. Reservation can be lost when the medium is changed and after some reset conditions.

104623b Illegal access to reserved area¶

The access type did not match the reservation type.

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Error Codes¶

104624b Device is set unavailable¶

The operator set the device unavailable for use by applications.

104625b Device must be set unavailable before this operation¶

The operation attempted cannot be executed unless the device is set unavailable.

104626b All logical units must be set unavailable¶

The operation attempted cannot be executed unless all devices corresponding to logical units on the same device controller are set unavailable.

104627b Device is reserved by another host¶

The device is currently in use by another host interface.

104630b No such logical unit¶

Internal status only.

104631b DOMINO host adapter not available¶

The DOMINO host adapter is not running.

104632b Device type does not match configuration¶

The device type defined in the configuration did not match the type of the physical device.

104633b Device is busy¶

Unable to access the device because busy status was returned.

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104634b Unknown device name¶

The device name is not found in the current definition.

104635b Device error (low-level driver)¶

A serious error occurred when communicating with the device. This condition will always result in a message on the error device, providing more information. Usually indicates hardware failure.

104636b SCSI interface or bus error¶

A serious error occurred in SCSI bus communication. The condition could not be associated with a specific device. More information is available on the error device.

104640b Sense received (internal)¶

Internal status only.

104641b Corrected error received¶

Internal status only.

104642b Device not ready¶

The device is not ready to receive the operation.

104643b Device medium data error¶

The device was unable to read recorded data.

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Error Codes¶

104644b Device hardware error¶

The device has reported an internal hardware fault. More information will be available on the error device.

104645b Operation rejected by device¶

The operation was either not supported by the device or contained illegal parameters.

104646b Device reset or media changed¶

Internal status only.

104647b Device is write-protected¶

Attempt to write data on a write-protected medium.

104650b Attempt to rewrite data on write-once device¶

Attempt to rewrite previously recorded data on a write-once device.

104651b Attempt to read unrecorded area¶

Attempt to read unrecorded data on a write-once device.

104652b No answer from device¶

The device does not respond to requests.

104653b Command aborted by device¶

The device reported that a command was aborted. This may indicate device or SCSI bus hardware problems. Should be reported to Norsk Data.

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Errors and Issues¶

104654b Device error in copy command¶

An unexpected device status was received when executing an SCSI copy command. More information available on the error device.

104657b Compare data mismatch¶

A compare data command found a difference between the two sets of data.

104660b Aborted by user¶

The command was aborted by the user, either explicitly or because the device reservation was cancelled.

104661b No such logical unit¶

Attempt to access or reference a non-existent logical unit.

104662b Illegal function¶

Operation received by server contained an illegal or unknown function.

104663b Illegal parameter¶

Operation received by server contained an illegal parameter.

104664b Illegal memory buffer¶

Operation received by server contained illegal memory data address.

104665b Illegal device type¶

Operation received by DOMINO was illegal on the device type.

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104666b Overlapping reservation areas on disk¶

Two reserved disk areas have overlapping addresses.

104667b Impossible to execute in current state¶

Indicates conditions such as table full, facility already in use and others, that temporarily inhibit execution of an operation.

104670b Device error (low-level driver)¶

SCSI hardware driver detected a serious error. See the error device for more information.

104671b Error in initialization of driver¶

The SCSI driver detected an error during DOMINO hardware initialization. More information will be available on the error device.

104672b Unexpected SCSI status received from device¶

104673b Illegal or non-extended SCSI sense received¶

104674b Retry counter exhausted¶

104675b Illegal data or response from device¶

104676b DOMINO SCSI-interface hardware error detected¶

104677b Internal error¶

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105301b Library: Sequence error, operation rejected¶

Usually returned when an error occurred in a sequence of queued commands.

105302b Library: No connection to remote end¶

No connection found to remote server or DOMINO.

105303b Library: Work area not available¶

Local work area exhausted. Too many concurrent devices or messages created.

105304b Library: No outstanding operation¶

Receive attempted when there was no request outstanding.

105305b Library: Connection timeout¶

No answer was received from the remote end within the designated time limit.

105306b Library: Illegal function/status call¶

The post-routine called did not match the function used to initiate the operation.

105307b Library: Illegal parameter or descriptor¶

Illegal parameter, connection or operation identifier used in a library routine call.

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Error Codes and Descriptions¶

105310b Error in reading configuration from (SYS)DSS-DEVICES:CNFG¶

105311b No configuration data found¶

The file (SYSTEM)DSS-DEVICES:CNFG does not exist or is empty.

105312b DOMINO initialized and running¶

This message indicates that all devices on newly started DOMINO are defined and ready for use.

105313b Error in DOMINO initialization¶

105314b Missing DOMINO heartbeat, controller aborted¶

The DOMINO failed to report within ten seconds.

105315b Impossible to connect LAMU¶

The original status is also reported. Correct the error and restart DP100.

105316b Configuration file corrupted¶

The contents of the file (SYSTEM)DSS-DEVICES:CNFG do not have the correct format.

105317b Device names may be a prefix of a SINTRAN device name¶

Valid device names may not be a prefix of SINTRAN device name.

Page 118¶

Error Codes¶

105320b SCSI device address already in use¶

Attempt to define a device or DOMINO with an address that was already occupied by another device or DOMINO.

105321b Operation rejected by PROMAN¶

PROMAN replied with NAK on the requested operation.

105322b No free connection slot available¶

The DP-100-SERVER was unable to handle a request because all internal connection slots were busy.

105323b Booting already started¶

Attempt to restart booting of DOMINO.

105324b Device table full¶

The internal device table in the DP-100-SERVER is full.

105325b Remote operation timeout¶

105326b Unable to create device name¶

During DOMINO initialization, an error was received when creating a device. The original error will be logged on the error device.

Page 119¶

105327b Automatic enter of BDIO disk volume failed¶

More information will be available on the error device.

105377b System restart needed¶

SINTRAN warmstart must be performed before the SCSI DOMINO system is fully operational.

Page 120¶

Index¶

Topic	Page(s)
BDIO Commands and macros	62
Cleaning tape drive	24
Creating SINTRAN pool/directory	33, 37, 40
Directory	4, 12, 51
Disk drive, magnetic	17, 19
Disk drive, optical	28
Disk Media Maintenance	11, 43
DMM	11, 43
DOMINO	2, 4, 6, 8
DP-SERVICE program	9, 92
EMD	19
Exabyte	38
Filestore cabinet	7
Formatting	11, 43
Gigatape System	38
GTS	38
Host adapter	8
ID number	6

Indicators¶

Indicator	Page(s)
disk	18, 20, 30
EMD	20
host adapter	8
LD 1200	30
ND GTS
magtape	26
STK MTS	26
streamer	34
WREN IV	18

Installation	9
Interface	8
Laser disk	28
LD 1200	28
Loading tape	22, 23
ND GTS	38

Page 121¶

Table of Contents¶

Topic	Page(s)
Magtape, cleaning	24
Magtape, loading	22, 23
Magtape	21
Maintenance, tape	24
MF-bus setup	10
Mirror pools	57
Mirroring	5
MTS	21
ND-100 SCSI	2
Operator maintenance	24
Operator panel, disk drive	20
Operator panel, magtape	26, 27
Optical disk	28
Pool	2, 4, 12, 42
SCSI Standard	1
SCSI interface	1
Software	4
Starting disk drive	18, 20
STK MTS	21
Stopping disk drive	18, 20
Streamer tape	24
Tape access library	68
Tape, cleaning	24
Tape, access	5
Tape, loading	22, 23
Tape	21
Test	9, 13
Video tape	38
Viper	34
WREN IV	17

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DOMINO SCSI Operator Guide¶

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SEND US YOUR COMMENTS!¶

Are you frustrated because of unclear information in our manuals? Do you have trouble finding things?

Please let us know if you: - find errors - cannot understand information - cannot find information - find needless information.

Do you think we could improve our manuals by rearranging the contents? You could also tell us if you like the manual.

Send to:
Norsk Data A.S
Documentation Department
P.O. Box 25 BOGERUD
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INTRODUCTION¶

Functional programming¶

Our coding styles, idioms, conventions, and methodologies are influenced by our choice of tools, especially programming languages.

Even though many programmers haven't been exposed to functional languages, functional programming influences their daily work.

Language	Year	Paradigm
Lisp	1958	Functional
Haskell	1990	Pure Functional
Scheme	1970	Functional

Importance¶

Functional programming is a programming paradigm where programs are constructed by applying and composing functions. It is important because:

Encourages modular design
Easier to test and debug
Favours immutability

Key Concepts¶

First-Class Functions: Functions are treated as first-class citizens.
Immutability: Data objects are immutable.
Recursion: Uses recursion as control flow.
Laziness: Evaluation of expressions is delayed until their results are needed.

Historical Context¶

Functional languages like Lisp were pioneering, presenting a very different approach from procedural languages.

Influence on Modern Languages¶

In recent years, many languages have incorporated functional features:

Lambda expressions
Higher-order functions
Immutable data structures

Conclusion¶

Understanding functional programming opens doors to a new way of thinking, leading to more predictable and easier-to-manage codebases.

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