HP 3PAR Operating System Software - Manual (Page 259)

26 Quick Disaster Recovery Guide
See: To recover from primary system downtime for:
“Quick Recovery: 1-to-1 and M-to-N Remote-Copy
Configurations” (page 259) 1-to-1
N-to-1
1-to-N
“Quick Recovery: Synchronous Long Distance
Configurations” (page 260) SLD
For additional information, see the following:
•
“Disaster Recovery for 1-to-1 Configurations” (page 171)
•
“Disaster Recovery for N-to-1 Configurations” (page 181)
•
“Disaster Recovery for 1-to-N Configurations” (page 191)
•
“Disaster Recovery for Synchronous Long Distance” (page 202)
•
“About the Remote-Copy Commands” (page 261)
Quick Recovery: 1-to-1 and M-to-N Remote-Copy Configurations
Table 13 Quick Recovery Steps for 1-to-1 and M-to-N Remote-Copy Configurations
Failed/Recovered System Failover System Step
setrcopygroup failover -t 1. Change secondary volume groups
to primary.
(of failed system)
showrcopy 2. Verify group reversal.
(Optional) Export the reversed virtual
volumes as read/write snapshots. 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 -t 6. Reverse the natural direction of
data flow and synchronize the
systems.
(of recovered system)
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 -t 9. Restore the natural direction of
data flow.
(of recovered system)
showrcopy showrcopy 10. Verify natural data flow restored.
Quick Recovery: 1-to-1 and M-to-N Remote-Copy Configurations 259