HP Surestore Bridge FC 2/1 LV and FC 4/1 HV Installation and Operations Guide

216 In-Band Management Appendix B
Allocation Length: Maximum number of data bytes the Target may send.
Page Code or Operation code: indicates which VPD page or Command
Support data to return. VPD pages are used to return vendor specific data.
Refer to SCSI-3 Primary Commands for specific details on VPD.
FCP Logical Unit Number: Unique LUN for each addressable device. Typically
this is the first two bytes of the LUN returned from the REPORT LUNS
Command.
Additional Vendor Unique Information
In addition to the INQUIRY Data from the device, 10 extra bytes of vendor
unique data is appended onto the end of the device's data and returned,
along with the device's data, to the initiator. See Table 15 . These additional
bytes are not returned if the Allocation Length is not long enough to support
these additional bytes.
Table 15 Additional Vendor Unique Information
Bit
Byte
7 6 5 4 3 2 1 0
N
Bus Type
N+1
Bus Number
N+2
...
N+7
Reserved
N+8
ID
N+9
LUN