Persistent Reserve In
Julyl 2017 Command Set 169
Report Capabilities Data
The format for the parameter data provided in response to a Persistent Reserve In
command with the Report Capabilities service action is shown in TABLE 4-89.
TABLE 4-89 Report Capabilities Data
Byte
Bit
76543210
0
to
1
(MSB)
Length (0008h)
(LSB)
2 Reserved
(000b)
CRH
(1)
SIP_C
(1)
ATP_C
(0)
Rsvd
(0)
PTPL_C
(1)
3 TMV (1) Reserved (00h) PTPL_A
4
to
5
(MSB)
Persistent Reservation Mask
(LSB)
6
to
7
Reserved (00h)
Report Capabilities Data Definitions:
Length
This field indicates the length in bytes of the parameter data.
CRH
The Compatibility Reservation Handling bit is set to a value of 1
indicating the library supports the exceptions to the SPC-2 RESERVE and
RELEASE commands as described in SPC-3.
SIP_C
The library will return a value of 1 for the Specify Initiator Ports Capable
bit, indicating the SPEC_I_PT bit in the PERSISTENT RESERVE OUT
command parameter data is supported.
ATP_C
All Target Ports Capable bit
0 = The library does not support the ALL_TG_PT bit in the PERSISTENT
RESERVE OUT command parameter data.
1 = The library supports the ALL_TG_PT bit in the PERSISTENT RESERVE
OUT command parameter data.
PTPL_C
Persist Through Power Loss Capable bit
0 = The library does not support the persist through power loss capability
for persistent reservations and the APTPL bit in the in PERSISTENT
RESERVE OUT command parameter data
1 = The library supports the persist through power loss capability for
persistent reservations and the APTPL bit in the in PERSISTENT RESERVE
OUT command parameter data