Commands40
INQUIRY data pages
Returned data:
INQUIRY returns its standard data if the EVPD bit is zero, or returns a page of data as specified by
the Page Code field when EVPD is one.
Standard Inquiry Data format (LUN0)
This is the data returned by the drive in response to an Inquiry command with its EVPD bit set to
zero. The data also depends on the value of the LUN field in the Inquiry CDB, the LUN value in the
identify message and the configuration of the drive.
Note that the data below is for the standard distribution firmware.
Page Code If the EVPD bit is zero the Page Code field must be zero.
If the EVPD bit is set to 1, the drive returns the Inquiry page in this Page Code field:
00h
80h
83h
86h
C0h
C1h
C2h
C3h
C4h
C5h
C6h
Supported Vital Product Pages page
Unit Serial Number page
Device Identification page
Extended Inquiry Data page
Firmware Revision Levels page
Hardware Revision Levels page
PCA Revision Levels page
Mechanism Revision Levels page
Head Assembly Revision Levels page
ACI page
ARM Firmware Revision Levels page
Allocation
Length
The maximum amount of data (in bytes) that should be returned. If more than this is
available, the amount returned is truncated to allocation length. No error is reported.
7 6 5 4 3 2 1 0
0 Peripheral Qualifier (000b) Peripheral Device Type (01h)
1 RMB (1) Reserved (0)
2 Version Number (5)
3 Obsolete Obsolete NACA(0) HiSup(0) Response Data Format (2)
4 Additional Length (5Bh)
5 SCCS (0) ACC (0) TPGS (01b) 3PC (0) Reserved (0) Protect(0)
6 BQue(0) EncSvr(0) VS(0) MultiP(0) MChngr(0) Obsolete Adr16
7 Obsolete WBus16 Sync Linked(0) Obsolete CmdQue(1) VS(0)
8 (MSB)
Vendor Identification
(“HP “)
15 (LSB)
16 (MSB)
Product Identification
31 (LSB)
