Inquiry Command - Oracle StorageTek T10000 Reference Manual

Inquiry Command

Inquiry Command
The Inquiry command returns information about the type and capabilities of a SCSI
device.
TABLE 3-12 Inquiry Command
Byte 7
0
1
2
3 (MSB)
thru
4
5
Parameter
CmdDt: Command support Data
EVPD: Enable Vital Product Data
Page Code
Allocation Length
Notes:
• The Inquiry command returns 74 bytes of data. If the allocation length is less
• The Inquiry command returns check condition status only when the requested
48 T10000: Interface Reference Manual
6 5
Operation Code (12h)
Reserved
Value
0 = Do not return command support data
0 = Return normal inquiry data
1 = Return Vital Product Data
EVPD page to return
Specifies the maximum length of inquiry data to return
than 74 bytes, the data is truncated.
data cannot be returned. This command will not clear any pending unit
attention conditions.
Bit
4 3
Page Code
Allocation Length
Control Byte
2 1 0
CmdDt EVPD
August 2016
(LSB)