Standard Inquiry Data Page - Quantum DLT 8000 Product Manual

SCSI Commands
INQUIRY Command (12h) (continued)
Table 5–7 INQUIRY Command Descriptor Block — Field Descriptions
Field Description
CmdDt Command Support Data. If CmdDt = 0 and EVPD (see below) = 0, the drive
returns the Standard Inquiry Data. If CmdDt = 1 with EVPD = 0, the drive
returns the Command Data specified by Page Code/Operation. Information
about Command Support Data is provided in Figure 5-12 and Table 5-13.
EVPD Enable Vital Product Data. If EVPD = 0 and CmdDt (see above) = 0, the drive
returns the Standard Inquiry Data. If EVPD = 1and CmdDt = 0, the drive returns
the Vital Product Data Page specified by Page Code/Operation Code.
Page Code or Specifies the Vital Product Data Page or Command Support Data, which is to
Operation Code be returned by the drive when EVPD is set. Specifies the SCSI Operation Code for
command support data to be returned by the drive when CmdDt is set. A
CHECK CONDITION status is returned if this field specifies an unsupported Page
or Operation Code or if both EVPD and CmdDt are set.
Allocation Length Specifies the number of bytes of inquiry information the drive is allowed to
return to the initiator during the command's data-in buffer transfer. Error status
is not returned if the value in this field truncates the requested information.

5.4.1 Standard Inquiry Data Page

Figure 5–5 shows the format of the Standard Inquiry Data page returned by the drive.
5-18 Quantum DLT 8000 Tape System