HP 3PAR Operating System Software - Manual (Page 185)

Failover for N-to-1 Configurations
1. Reverse the role of all volume groups on the system that is still in normal operation (the failover
system). On the failover system (System1), issue the following command:
# setrcopygroup failover -t
where represents the name of the target system that failed (System2).
The setrcopygroup failover -t command:
•
Changes all secondary volume groups on the failover system (periodic_group_1.r96
on System1) to primary volume groups, and therefore reverses the direction of data
replication.
•
Enables I/O to the reversed volume groups (periodic_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 261) .
Disaster Recovery for N-to-1 Configurations 185