INQUIRY
Table 3. INQUIRY Command
76543210
0 Operation Code (12h)
1 Logical Unit Number (0) Reserved EVPD
2 Page Code
3 Reserved
4 Allocation Length
5 Control
The INQUIRY command instructs the drive to return data about itself to the initiator.
If the Enable Vital Product Data (EVPD) flag is clear and the Page Code is 0,
standard Inquiry Data is returned.
If the Enable Vital Product Data (EVPD) flag is set and the Page Code is 0, the
Supported Vital Product Data Pages page is returned.
If the Enable Vital Product Data (EVPD) flag is set, if the Page Code is not 0, and if
there is a vendor-defined Inquiry data page that corresponds to that page code,
then that page is returned. Supported pages are 03h, 80h, 83h, C0h, and D0h. The
contents of pages 03h and D0h are not specified in this document.
If the preceding conditions do not apply, Check Condition status is returned. The
Sense Key is set to Illegal Request (5) and the ASC/ASCQ is set to Invalid Field in
CDB (2400).
Chapter 2. Command Support 7
