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SCSI Commands

5-18 Quantum DLT 4000 Tape Drive

INQUIRY Command (12h) (continued)

Table 5–8 INQUIRY Command Descriptor Block - Field Descriptions

Field Description

EVPD Enable Vital Product Data. If 0, the drive returns the Standard Inquiry Data

page. If 1, the drive returns the Vital Product Data page specified in Page

Code.

Page Code Specifies which Vital Product Data page is to be returned by the drive. This

field must be 0 if EVPD is 0. A CHECK CONDITION with ILLEGAL REQUEST

status is returned if this field specifies an unsupported page code.

Table 5–9 lists the page codes for the Vital Product Pages supported by the

drive.

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 phase. Error status is

not returned if the value in this field truncates the requested information.

Table 5–9 Vital Product Data - Page Codes

Page Code Description

00h Supported Vital Product Pages Page

80h Unit Serial Number Page

C0h Code Build Information Page

5.4.1 Standard Inquiry Data Page

Figure 5–5 shows the format of the Standard Inquiry Data page returned by the

drive.

1 2 ... 113 114 115 116 117 118 119 120 121 122 123 ... 299 300

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