Operating System Software Owner manual

Recovering from Disaster
Failover
1. Reverse the role of all volume groups on the system that is still in normal operation (the failover
system). On the failover system (for example, System2), enter:
# setrcopygroup failover -t <target_name>
• <target_name> - Name of the target system that failed (System1)
The setrcopygroup failover -t command:
• Changes all secondary volume groups on the failover system (sync_group_1.r96 on
System2) to primary volume groups, and therefore reverses the direction of data replication
• Enables I/O to the reversed volume groups (sync_group_1.r96)
NOTE: If you do not want to perform disaster recovery operations on all volume groups on
a system, you can use all of the disaster recovery commands on one or more specified volume
groups. For more information, see the description of each command in “About the Remote
Copy Commands” (page 222).
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