Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
243
18.33.3.2
WRITE BUFFER: command timeouts descriptor
COMMAND SPECIFIC field usage
For the WRITE BUFFER command, the COMMAND SPECIFIC field usage is reserved for all modes except the
following:
- Download microcode mode (04h);
- Download microcode and save mode (05h);
- Download microcode with offsets mode (06h);
- Download microcode with offsets and save mode (07h);
- Download microcode with offsets and defer activation mode (0Eh) only if the microcode is activated by an event
other than an activate deferred microcode mode; and
- Activate deferred microcode mode (0Fh).
If the command timeouts descriptor describes one of the WRITE BUFFER modes listed in this sub clause, then the
COMMAND SPECIFIC field indicates the maximum time, in one second increments, that access to the SCSI device
is limited or not possible through any SCSI ports associated with a logical unit that processes a WRITE BUFFER
command that specifies one of the named modes. A value of zero in the COMMAND SPECIFIC field indicates that
the no maximum time is indicated.