HP XP Continuous Access Software - Manual (Page 186)

186 HP StorageWorks Disk Array XP RAID Manager: User’s Guide
pairvolchk
Check volume attribute
Description
The pairvolchk command reports the attributes of a volume from the
perspective of the local or remote host. This command can be applied to
each paired logical volume or each group.
This is the most important command used by high availability (HA)
failover software to determine when a failover or failback is appropriate.
The table under the heading “HA control script state transitions” on
page 326 lists state transitions resulting from the execution of pairvolchk
in HA control scripts.
CA Operation
The following figure shows the usage of the –FCA option. In the example,
the command acquires the fine granularity CA status by specifying the
name of a BC group to which it is cascaded.
BC Operation
The following figure shows the usage of the –FBC option. In the example,
the command acquires the fine granularity status (PVOL_PSUS) of the BC
S-VOL/P-VOL (MU#1) by specifying the name of the CA group to which
it is cascaded.
SVOL P/P
VOL
SVOL
SVOL
Ora(CA) Oradb1(BC)
Oradb2(BC)
0
1
0
Seq#30052
Seq#30053
BC environment
pairvolchk -g oradb1 -c -s -FCA