Tandberg Data SLR AUTOLOADER PROGRAMMER User manual

TANDBERG SLR

AUTOLOADER

SCSI INTERFACE

FUNCTIONAL SPECIFICATIONS

TANDBERG DATA ASA

P.O. Box 134 Kjelsås

N-0411 OSLO, NORWAY

Phone + 47 22 18 90 90

Telefax + 47 22 18 95 50

Part No. 43 20 73-03

December 2003

Related publications available from our Marketing Department:

Part No. Title

43 21 77 - 03 Tandberg SLR Autoloader Installation and User Manual

43 20 72 - 03 Tandberg SLR Autoloader Service and Repair Manual

43 20 74 - 01 Tandberg SLR Autoloader Product Verification Reports

43 04 44 - 11 Tandberg SLR7 – SLR140 Reference Manual

43 07 43 - 13 Tandberg SLR7 – SLR140 SCSI Interface Functional

Specification

This publication may describe designs for which patents are granted or pending.

By publishing this information, Tandberg Data ASA conveys no license under

any patent or any other rights.

Every effort has been made to avoid errors in text and diagrams. However,

Tandberg Data ASA assumes no responsibility for any errors which may appear

in this publication.

It is the policy of Tandberg Data ASA to improve products as new techniques

and components become available. Tandberg Data ASA therefore reserves the

right to change specifications at any time.

We would appreciate any comments on this publication.

Table of Contents

1 Overview 1-1

2 SCSI Commands 2-1

2.1 INITIALIZE ELEMENT STATUS 07h 2-2

2.2 INITIALIZE ELEMENT STATUS WITH RANGE E7h 2-3

2.3 INQUIRY 12h 2-4

2.3.1 Standard Inquiry Response 2-5

2.3.2 Supported Vital Product Data Page 00h 2-8

2.3.3 Unit Serial Number Page 80h 2-8

2.4 LOG SENSE 4Dh 2-9

2.4.1 LOG SENSE Page Format 2-10

2.4.2 LOG SENSE Page Header Format 2-10

2.4.3 LOG SENSE Page 00h Format 2-11

2.4.4 LOG SENSE Page 2Eh Format 2-11

2.4.5 LOG SENSE Page 30h, 31h, 32h Format 2-13

2.5 MODE SELECT 15h 2-14

2.5.1 MODE SELECT Parameter List 2-14

2.5.2 MODE SELECT Page Format 2-15

2.5.3 Element Address Assignment Page 1Dh 2-16

2.5.4 Library Mode Page 23h 2-17

2.6 MODE SENSE 1Ah 2-18

2.6.1 MODE SENSE Parameter List 2-19

2.6.2 MODE SENSE Page Format 2-19

2.6.3 Element Address Assignment Page 1Dh 2-20

2.6.4 Default, Changeable and Saved Values for Page 1Dh 2-21

2.6.5 Transport Geometry Parameters Page 1Eh 2-22

2.6.6 Device Capabilities Page 1Fh 2-23

2.6.7 Library Mode Page 23h 2-25

2.6.8 Library Configuration Page 24h 2-26

2.7 MOVE MEDIUM A5h 2-27

2.8 POSITION TO ELEMENT 2Bh 2-28

2.9 PREVENT ALLOW MEDIUM REMOVAL 1Eh 2-28

2.10 READ ELEMENT STATUS B8h 2-29

2.10.1 Element Status Data Header 2-30

2.10.2 Medium Transport Element Status Page 2-31

2.10.3 Storage Element Status Page 2-33

2.10.4 Import Export Element Status Page 2-35

2.10.5 Data Transfer Element Status Page 2-37

2.11 RELEASE 17h 2-39

2.12 REQUEST SENSE 03h 2-40

2.12.1 Sense Information Format 2-41

2.13 REQUEST VOLUME ELEMENT ADDRESS B5h 2-45

2.13.1 Volume Element Address Header 2-46

2.14 RESERVE 16h 2-47

2.14.1 Element List Descriptor 2-48

2.15 SEND DIAGNOSTIC 1Dh 2-49

2.16 SEND VOLUME TAG B6h 2-50

2.16.1 Send Volume Tag Parameter List 2-51

2.17 TEST UNIT READY 00h 2-52

2.18 WRITE BUFFER 3Bh 2-53

3 SCSI Status and Messages 3-1

3.1 Supported SCSI Status Codes 3-1

3.2 Supported SCSI Message Codes 3-1

This Page Intentionally Left Blank

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Tandberg SLR Autoloader SCSI Functional Specifications 1-1

1 Overview

The purpose of this specification is to provide a definition of the SCSI

implementation for the Tandberg Data SLR Loader medium changer device.

For SCSI implementation information regarding the SLR tape drives (Data

transfer element), refer to the SLR7-140 Programers Manual: SCSI-2

Interface Functional Specifications Tandberg Data P/N 430743.

The SLR Loader consists of one medium changer device, one SLR tape drive,

one eight-cartridge removable magazine, and an integrated bar code reader.

The medium changer and the tape drive are single LUN SCSI devices, each

occupying a unique SCSI address. The individual SCSI address of the

autoloader and the internal drive are programble from the front pannel of

the unit. The SLR Autoloader supports both Single-ended and LVDS SCSI

interfaces as standard. The dual SCSI connectors on the back of the unit are

the standard SCSI-3 68-pin high-density connectors. Refer to the SLR

Autoloader Installation Manual (Tandberg Data P/N 432177 (SLR60-140))

for details on SCSI addressing, interconnect, termination, and cabling

considerations.

All SLR Loader configurations utilize three of the medium changer element

types defined in the SCSI Standard - one data transfer element (the tape

drive), one medium transport element (the cartridge picker/elevator), and

the storage elements (one for each magazine slot).

The SLR Loader operates in either sequential or random access mode,

depending on the configuration stored in its non-volatile memory. In

random access mode, cartridges are moved to and from the tape drive by

issuing the SCSI MOVE MEDIUM command to the medium changer device.

In sequential mode, cartridges are sequentially moved by issuing the SCSI

UNLOAD command to the tape drive (after manually loading the first tape).

Tandberg Data Overview

______________________________________________________________________

1-2 Tandberg SLR Autoloader SCSI Functional Specifications

This Page Intentionally Left Blank

______________________________________________________________________

Tandberg SLR Autoloader SCSI Functional Specifications 2-1

2 SCSI Commands

The following table summarizes the command set for the SLR Loader

medium changer:

OPCODE COMMAND

07 INITIALIZE ELEMENT STATUS

E7 INITIALIZE ELEMENT STATUS W/RANGE

12 INQUIRY

4D LOG SENSE

15 MODE SELECT

1A MODE SENSE

A5 MOVE MEDIUM

2B POSITION TO ELEMENT

1E PREVENT ALLOW MEDIUM REMOVAL

B8 READ ELEMENT STATUS

17 RELEASE

03 REQUEST SENSE

B5 REQUEST VOLUME ELEMENT ADDRESS

16 RESERVE

1D SEND DIAGNOSTIC

B6 SEND VOLUME TAG

00 TEST UNIT READY

3B WRITE BUFFER

Tandberg Data SCSI Commands

______________________________________________________________________

2-2 Tandberg SLR Autoloader SCSI Functional Specifications

2.1 INITIALIZE ELEMENT STATUS 07h

Bit

Byte 76543210

0 Operation Code (07h)

1 Logical Unit Number Reserved

2 Reserved

3 Reserved

4 Reserved

5 Mode Reserved Flag Link

The INITIALIZE ELEMENT STATUS command will cause the medium

changer to check any relevant element status. A subsequent READ

ELEMENT STATUS command may be used to retrieve element status

information. Since the medium changer always maintains the current

element status information, the default operation of this command only

determines if the changer is ready.

Mode

The setting of the Mode field defines whether or not an inventory is

performed by this command:

Mode Description

00b Do not re-inventory elements or bar codes, use current valid element status

01b Re-inventory bar codes only, if bar code reader is enabled

10b Do not re-inventory elements or bar codes, use current valid element status

11b Re-inventory all elements and bar codes, if bar code reader is enabled

Tandberg Data SCSI Commands

______________________________________________________________________

Tandberg SLR Autoloader SCSI Functional Specifications 2-3

2.2 INITIALIZE ELEMENT STATUS WITH RANGE E7h

Bit

Byte 76543210

0 Operation Code (E7h)

1 Logical Unit Number Reserved Range

2 Element Address (MSB)

3Element Address (LSB)

4 Reserved

5 Reserved

6 Number of Elements (MSB)

7Number of Elements (LSB)

8 Reserved

9 Mode Reserved Flag Link

The INITIALIZE ELEMENT STATUS WITH RANGE command will cause

the medium changer to check the status of the requested range of elements.

A subsequent READ ELEMENT STATUS command may be used to retrieve

element status information. Since the medium changer always maintains

the current element status information, the default operation of this

command only determines if the changer is ready.

Range

A Range bit of zero indicates that all elements are to be initialized. A Range

bit of one indicates that the range of elements specified by the Element

Address and the Number of Elements fields are to be initialized.

Element Address

This field specifies the address of the element or the starting address of the

range of elements to be checked. This field is ignored when the Range bit is

zero.

Number of Elements

This field specifies the maximum number of elements to be checked. This

field is ignored when the Range bit is zero.

Mode

The setting of the Mode field defines whether or not an inventory is

performed by this command:

Mode Description

00b Do not re-inventory elements or bar codes, use current valid element status

01b Re-inventory bar codes only, if bar code reader is enabled

10b Do not re-inventory elements or bar codes, use current valid element status

11b Re-inventory all elements and bar codes, if bar code reader is enabled

Tandberg Data SCSI Commands

______________________________________________________________________

2-4 Tandberg SLR Autoloader SCSI Functional Specifications

2.3 INQUIRY 12h

Bit

Byte 76543210

0 Operation Code (12h)

1 Logical Unit Number Reserved EVPD

2 Page Code

3 Reserved

4 Allocation Length

5 Vendor Unique Reserved Flag Link

The INQUIRY command requests that information regarding parameters of

the medium changer be sent to the initiator.

EVPD

An enable vital product data (EVPD) bit of zero specifies that the target

shall return the standard INQUIRY data. An EVPD bit of one specifies that

the device shall return the vital product data based on the Page Code field.

Page Code

The page code field is used to specify which page of vital product data to

return if the EVPD bit is set to one.

Page Code Page Description

00h List of supported VPD pages

80h Unit Serial Number page

Allocation Length

This specifies the maximum number of bytes that the initiator has allocated

for returned Inquiry data. An Allocation Length of zero indicates that no

Inquiry data is transferred. This condition is not considered an error. The

device will terminate the DATA IN phase when allocation length bytes have

been transferred, or when all available Inquiry data has been transferred to

the initiator, whichever is less.

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