IBM Ultrium Internal Tape Drive T200, Reference Manual

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PERSISTENT RESERVE OUT
Table 45. PERSISTENT RESERVE OUT Command
7 6 5 4 3 2 1 0
0 Operation Code (5Fh)
1 Reserved Service Action
2 Scope ( 0) Type
3 Reserved
4 Reserved
5 Reserved
6 Reserved
7
:
8
Parameter List Length (18h)
9 Control
The PERSISTENT RESERVE OUT command is used for reservation management
to allow different types of Reservations and Reservation Keys to be created or
removed.
Service Action may have one of the following values:
v
00000h (register a reservation key with the device server)
v
00001h (create a persistent reservation by using a reservation key)
v
00002h (release a persistent reservation)
v
00003h (clear all reservation keys and all persistent reservations)
v
00004h (preempt persistent reservations from another initiator)
v
00005h (preempt persistent reservations from another initiator and clear the task
set for the preempted initiator)
Type may have one of the following values:
v
3h means Exclusive Access
v
6h means Exclusive Access for Registrants only
Chapter 2. Command Support
39