SCSI Commands: 17BINQUIRY
Page
30
If the Enable Vital Product Data (EVPD) and Command Support Data (CmdDt) bits
are clear and the Page Code is zero, Standard INQUIRY Data is returned. If the
Enable Vital Product Data (EVPD) flag is set and the Page Code is zero, the
Supported Vital Product Data Pages page is returned.
If both EVPD and CmdDt are set then the drive will return CHECK CONDITION
status with a sense key of ILLEGAL REQUEST.
If CmdDt is set and EVPD is clear then the drive will return the command support
data for the specified operation code.
If the Enable Vital Product Data (EVPD) flag is set and the Page Code is not zero
and there is a vendor defined INQUIRY data page corresponding to that page code,
then that page is returned. Otherwise, Check Condition status is returned. The
Sense Key is set to Invalid Request (5) and the additional Sense to Invalid Field in
CDB (2400).
3.5.2
Standard INQUIRY Data Page
Byte
Bits
7 6 5 4 3 2 1 0
0
Peripheral Qualifier
Peripheral Device Type
1
RMB Reserved
2
Version
3
AERC Obsolete NACA HiSup
Response
Data
Format
4
Additional Length
5
Reserved
6
BQue EncServ VS MuiltiP
MChgr Obsolete Obsolete Addr16
7
RelAdr Obsolete WBus
16
Sync Linked TransDis CmdQ
VS
8 – 15
Vendor Identification
16 – 31
Product Identification
32 – 35
Product Revision Level
36 – 55
Vendor Specific
56
Reserved Clocking
QAS
IUS
57
Reserved
58 - 73
Version Descriptors
3.5.2.1
Standard INQUIRY Page Field Descriptions
Field Bytes
Bits
Description
Peripheral
Qualifier
0 5-7
Always
000b.
Peripheral
Device Type
0 0-4
Normally 01h to indicate a sequential access device.
7Fh indicates that a logical unit is not present. This value is
returned when an invalid LUN was in the last Identify message.
RMB
1
7
Always 1, indicating Removable Media.
Version 2 Always
4
AERC 3
7
Always 0, indicating Asynchronous Event Reporting Capability is
not supported.
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