Command Descriptions - HP C2488A Technical Reference Manual

B
Vendor Unique Command Descriptions
This section provides descriptions of the Vendor Unique commands supported by the Target.
Table B-1 is a list of the Vendor Unique commands supported by the Target with brief
descriptions included for each command.
Command Descriptions
Detailed descriptions of the Vendor Unique commands supported by the Target are provided
at the end of this chapter. These descriptions include the Control Byte format, Command
Descriptor Block (CDB) formats, data formats, and all device-specific information involved in
command execution.
Table B-1. Vendor Unique Commands
Command Opcode
Use Use Description
(hex) Before When
Spinup
Wpl
Enabled
Access Log F2 No Yes Used to retrieve information from the Target's maintenance log.
Change SCSI ID C1 No Yes Instructs the Target to change to the supplied address.
Execute Data FE No No Executes special code downloaded via the WRITE BUFFER
conunand.
Interface Control EF No
No
Allows the ESDI conunands to be sent to the disk drive
processor.
Manage Primary FD No
No
Used to manag~ the-primary defect list (P list).
Media Test F1 No
No Used to test the integrity of the disk media.
Read Headers EE No Yes Requests Target to read all the headers on the addressed track
and return the requested number of bytes of header information.
Read Full FO
No Yes Requests Target to return the header, data field, and ECC bytes
of one physical sector.
Reformat Track ED No No Formats a single track. 1£. HS bit is 0, .then it uses normal default
header information. If the HS bit is 1, the supplied header
information is used for the track logical address and flail: bytes.
Write Full FC
No No Allows Initiator to write one complete physical sector, including
header, data, and ECC fields.
DRAFT
Vendor Unique Command Descriptions B-1
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