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PR Generation
Reservation Key The key under which the persistent reservation is held.
Scope
Type
Read Capabilities service action
This provides a mechanism for the drive to report which features of Persistent Reservation are
implemented. The format of the data returned is as follows:
7
0
(MSB)
1
2
3
TMV (1)
WR_EX_AR(0) EX_AC_RO(1) WR_EX_RO(0) Rsvd(0) EX_AC(1) Rsvd(0) WE_EXC(0)
4
5
6
7
PTPL_A
All the other fields are fixed. Refer to the description of
standards for more information.
the
PERSISTENT RESERVE IN
100
Commands
As for "Read Keys service action" on page 99.
0
Indicates LU_SCOPE.
The characteristics of the persistent reservation currently held. Persistent reservation
types supported by the drive are:
3h
Exclusive access
6h
Exclusive access, registrants only
8h
Exclusive access, all registrants
See PERSISTENT RESERVE OUT for more information and also the appropriate
standards.
6
5
Reserved (0)
Reserved (0)
0
Persist Through Power Loss has not been activated
The most recent successfully completed
1
with
Register or Register and Ignore Existing Key
bit set to one in the parameter data.
command, and clause 5.6 for a detailed discussion of reservations.
4
3
Length (0008h)
CRH (1) SIP_C (1) ATP_C(0)
Reserved (0)
Reserved (0)
PERSISTENT RESERVE OUT
PERSISTENT RESERVE OUT
2
1
(LSB)
Rsvd(0)
PTPL_C(1)
PTPL_A
Rsvd(0)
EX_AC_AR(1)
command
service action had the APTPL
or the appropriate
0
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