Reference Guide

16 SCSI Commands
Standard Inquiry Response
Peripheral Qualifier – A return value of 000b indicates that the library supports the peripheral device type
at the specified LUN. A return value of 001b indicates that the library is capable of supporting the peripheral
device type at the specified LUN, however the device is not currently connected to it. A return value of 011b
indicates no peripheral device types are supported at that LUN.
Peripheral Device Type – For Media Changer logical units, this field returns 01000b (08h) to indicate it is
a Media Changer device. For the Controller logical unit, this field returns 01100b (0Ch) to indicate it is a
Controller device. If an unsupported LUN was specified, this field returns 11111b (1Fh), which indicates that
the device type is unknown.
Removable Medium Bit (RMB) – For Media Changer logical units, this field returns 1, indicating media is
removable. For the Controller logical unit it returns 0.
Version – This field returns 03h, indicating compliance with the SCSI-3 standard.
Asynchronous Event Reporting Capability (AERC) – Returned as 0, indicating AERC is not supported.
Normal ACA Supported (NormACA) – This field returns a 1, indicating the NACA bit in the Control byte
of a CDB is supported. The PowerVault ML6000 library without Data Appliance blades does not support the
NACA bit and therefore returns 0 for this field.
Hierarchical Support (HiSup) – This field returns a 1, indicating that the hierarchical addressing model is
used to assign LUNs, and that the REPORT LUNs command is supported.
Response Data Format – Returned as 0010b, indicating response data is in standard SCSI format.
Table 10 Standard Inquiry Response
Bit
Byte
76543210
0 Peripheral Qualifier Peripheral Device Type
1RMB Reserved
2Version
3 AERC Obsolete
NormACA
HiSup Response Data Format
4 Additional Length
5 SCCS Reserved
6 BQue EncServ BarC MultiP MChngr Obsolete Obsolete Addr16
7 RelAdr Obsolete Wbus16 Sync Linked Obsolete CmdQue SftRe
8
Vendor Identification
15
16
Product Identification
31
32
Firmware Revision Level
35
36
Full Firmware Revision Level
54
55 Reserved BarC