HP 3PAR Operating System Software - Manual (Page 221)

Quick Recovery: Synchronous Long Distance Configurations
Table 8 Quick Recovery Steps for Synchronous Long Distance Configurations
Backup System Failed/Recovered System Failover System Step
setrcopygroup
failover -f -t
1. Change secondary
volume groups to
primary.
(of failed system)
OR (no data transfer):
setrcopygroup
failover -f -t
-discard
(possible data loss)
Verify that failover tasks
complete successfully. 2. Verify group reversal.
showrcopy showrcopy 3. Back up data.
Recover the failed system. 4. Prepare to resume normal
operation.
Stop I/O to the reversed
volume groups. 5. Stop writes.
setrcopygroup
recover -f -t
6. Reverse the natural
direction of data flow
and synchronize the
systems.
(of recovered system)
showrcopy showrcopy showrcopy 7. Verify synchronization.
showrcopy groups 8. Verify volume groups are
started.
(Do not continue until
groups are started and
synced.) (of volume group that should
be started)
setrcopygroup
restore -f -t
9. Restore the natural
direction of data flow.
(of recovered system)
showrcopy showrcopy showrcopy 10. Verify natural data flow
restored.
Quick Recovery: Synchronous Long Distance Configurations 221