3.1.19.2 Persistent Reserve Out Parameter List; Persistent Reserve Out Command Service Action Codes - Fujitsu MAP3147 Scsi Logical Interface Specifications

Command Specifications
Table 3.3 PERSISTENT RESERVE OUT command service action codes
Code Name
00h REGISTER
01h RESERVE
02h RELEASE
03h CLEAR
04h PREEMPT
05h PREEMPT &
ABORT
06h REGISTER
& IGNORE
EXISTING KEY
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
0
~ ~
7
8
~ ~
15
16
~ ~
19
20
21-23
3 - 58
Registers a reservation key on the drive.
Generates a persistent reservation for the specified Scope and Type using
the reservation key.
Releases the persistent reservation.
Clears all reservation keys and persistent reservations.
Dispossesses a persistent reservation from another initiator.
Dispossesses a persistent reservation from another initiator, and clears the
task set regarding the initiator.
Registers a reservations key on the drive.
7 6 5
(MSB)
(MSB)
Service Action Reservation Key
(MSB)
0 0 0
Description
4 3
Reservation Key
Scope-specific Address
0 0
X'000000' (Reserved)
2 1 0
~
(LSB)
~
(LSB)
~
(LSB)
0 0 APTPL
C141-E167