Inquiry - X'12'

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Table 1 shows the format of the Inquiry command for the tape library.

Table 1. Inquiry Command
Byte Bit 7

MSB

 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

LSB
0 Operation code (X'12')
1 LUN (Obsolete) Reserved CmdDt (B'0') EVPD
2 Page Code
3 Reserved
4 Allocation Length
5 Vendor Specific (B'00') Reserved (B'0000') Flag (B'0') Link (B'0')
There are several forms of Inquiry data. The following are supported. For more detail, go to each "Related Reference."
  • Inquiry Standard Data: Valid LUN (Logical Unit Number)
  • Inquiry Page X'00'
  • Inquiry Page X'80': Unit Serial Number
  • Inquiry Page X'83': Device Identification
  • Inquiry Page X'D0' (the contents are not specified in this document)