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Command Specifications
3 - 58 C141-E167
Table 3.3 PERSISTENT RESERVE OUT command service action codes
Code Name Description
00h REGISTER Registers a reservation key on the drive.
01h RESERVE Generates a persistent reservation for the specified Scope and Type using
the reservation key.
02h RELEASE Releases the persistent reservation.
03h CLEAR Clears all reservation keys and persistent reservations.
04h PREEMPT Dispossesses a persistent reservation from another initiator.
05h PREEMPT &
ABORT
Dispossesses a persistent reservation from another initiator, and clears the
task set regarding the initiator.
06h REGISTER
& IGNORE
EXISTING KEY
Registers a reservations key on the drive.
07h-1Fh Reserved
3.1.19.2 PERSISTENT RESERVE OUT parameter list
The format for the parameter list that is transferred with the PERSISTENT RESERVE OUT
command is shown below. Some fields on the parameter list may be disabled for specific service
actions or a specific Scope. However, all fields including such fields must be transferred by this
command.
Bit
Byte
76543210
0(MSB)
Reservation Key
7(LSB)
8(MSB)
Service Action Reservation Key
15 (LSB)
16 (MSB)
Scope-specific Address
19 (LSB)
20 0 0 0 0 0 0 0 APTPL
21-23 X'000000' (Reserved)
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