User Manual

SCSI Commands Reference Manual, Rev. J 100
www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)
3.6.3 Vital product data
The application client requests the vital product data information by setting the EVPD bit to one and specifying the page code of
a vital product data. See 5.4 for details about vital product data. The information returned consists of configuration data (e.g.,
vendor identification, product identification, model, serial number), manufacturing data (e.g., plant and date of manufacture),
field replaceable unit data and other vendor specific or device specific data. If the device server does not implement the
requested page, the command shall be terminated with CHECK CONDITION status, with the sense key set to ILLEGAL REQUEST,
and the additional sense code set to INVALID FIELD IN CDB.
The device server should have the ability to process the INQUIRY command even when an error occurs that prohibits normal
command completion. In such a case, CHECK CONDITION status should be returned for commands other than INQUIRY or
REQUEST SENSE. The sense data returned may contain the field replaceable unit code. The vital product data may be obtained
for the failing device using the INQUIRY command.
This manual defines a format that allows device-independent application client software to display the vital product data
returned by the INQUIRY command. The contents of the data may be vendor specific, and may be unusable without detailed
information about the device.
This manual does not define the location or method of storing the vital product data. The retrieval of the data may require
completion of initialization operations within the device, that may induce delays before the data is available to the application
client. Time-critical requirements are an implementation consideration and are not addressed in the standard.