HP 3PAR Operating System Software - Manual (Page 171)

22 Disaster Recovery for 1-to-1 Configurations
Before you begin disaster recovery:
“Bidirectional 1-to-1 Remote-Copy Configuration—Example
” (page 172) 1. Review the remote-copy pair used to illustrate 1-to-1
disaster recovery.
“System Information during Normal Operation” (page 173) 2. Review system information for 1-to-1 configurations.
“System Information during Failover for 1-to-1
Configurations” (page 174) 3. Understand the system information to look for during a
failover.
Recover the systems:
“Recovering from Disaster for 1-to-1 Configurations”
(page 175) 1. Change secondary volume groups to primary.
2. Export recovered data if desired.
3. Recover the failed system.
4. Reverse the natural direction of data flow and
synchronize data.
5. Verify volume groups are started.
6. Restore the natural direction of data flow.
For additional information, see:
•
“About the Remote-Copy Commands” (page 261)
•
“Quick Disaster Recovery Guide” (page 259)
The disaster recovery steps for 1-to-1 configurations refer to the setup illustrated in Figure 62
(page 172) .
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