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INQUIRY Command (12h) SDLT 600 SCSI Interface Guide

4-14 January 2005 81-81200-02 REV A01

The following table contains field descriptions for the data the drive returns.

Table 4-8. Standard Inquiry Data Page — Field Descriptions

Field Name Val ue Description

Peripheral Qualifier 0 This field contains 000b if the command is directed to a

valid device. The field contains 011b if there is no device

at the selected LUN.

Peripheral Device Type 1 This field contains 01h if the LUN is 0h, 8h if the LUN

selects an attached loader, or 1Fh if no device is attached

to the selected LUN.

RMB 1 Removable Medium Bit. Always set to 1.

Version 04h The drive supports ANSI SCSI-3 per SPC-2.

NormACA 0 Normal ACA Supported. When set to 0, indicates that the

drive does not support setting the NACA bit to 1 in the

Control byte of the CDB. When set to 1, indicates that the

drive supports setting the NACA bit to 1.

HiSup 1 Hierarchical Support. When set to 0, indicates that the

drive does not support the hierarchical addressing model

to assign LUNs to logical units. When set to 1, indicates

that the drive does support the hierarchical addressing

model to assign LUNs to logical units.

Response Data Format 2 This Standard Inquiry Data is in the format described in

the Version field.

Additional Length --- The drive uses this field to indicate the number of

additional bytes of INQUIRY Response Data available.

The value depends on the number of version descriptors

returned in the INQUIRY Response Data.

SCCS 0 SCC Supported. The drive does not contain an embedded

storage array controller component. Always set to 0.

ACC 0 Access Controls Coordinator. The drive does not contain

an access controls coordinator. Always set to 0.

ALUA 00b Asymmetric Logical Unit Access. Not supported. Always

set to 0.

3PC 0 Third-party Copy. Not supported. Always set to 0.

BQue 0 Tagged (Basic) Command Queuing. Not supported.

Always set to 0.

EncServ 0 Enclosure Services. The drive does not contain an

embedded enclosure services component. Always set

to 0.

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Quantum 1200 Series DAT Autochanger Betriebsanweisung Seite 56