Table 6-77 Persistent Reserve Out Service Action Code - Hitachi DK32EJ - Ultrastar Series 36.9 GB Hard Drive Reference Manual

This controller can register one Reservation Key per host. That is, Reservation Key
of a maximum of 32 can be registered by the whole the controller.
The PERSISTENT RESERVE OUT command contains fields that specify a
persistent reservation service action, the intended scope of the persistent reservation,
and the restrictions caused by the persistent reservation. The type and scope fields
are defined in Table 6-76 and Table 6-75. If a scope field specifies a scope that is not
implemented, the device server shall return a CHECK CONDITION status. The
sense key shall be set to ILLEGAL REQUEST and additional sense data shall be set
to INVALID FIELD IN CDB.
Fields contained in the PERSISTENT RESERVE OUT parameter list specify the
information required to perform a particular persistent reservation service action.
The parameter list shall be 24 bytes in length and the PARAMETER LIST LENGTH
field shall contain 24 (18h). If the parameter list length is not 24, the controller shall
return a CHECK CONDITION status. The sense key shall be set to ILLEGAL
REQUEST and the additional sense data shall be set to PARAMETER LIST
LENGTH ERROR.
When processing the PERSISTENT RESERVE OUT service actions, the device
server shall increment the generation value as specified in section 6.9.
The PERSISTENT RESERVE OUT command service actions are defined in Table
6-77.

Table 6-77 PERSISTENT RESERVE OUT Service Action Code

Code Name
00 REGISTER
H
01 RESERVE
H
02 RELEASE
H
03 CLEAR
H
04 PREEMPT
H
PERSISTENT RESERVE OUT:(5Fh)
6 COMMAND DESCRIPTIONS
Description
Register a reservation key with the device
server.
Creates a persistent reservation having a
specified scope and type. The scope and type
of a persistent reservation.
Releases the selected reservation for the
requesting initiator.
Clears all reservation keys and all persistent
reservations.
Preempts persistent
another host computer.
OEM MANUAL:K6602771
reservations from
Revision: 2 / Date: 2002.12.19
GENERATION
field
incremented
Yes
No
No
Yes
Yes
(cont'd)
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