Recovering from disaster for 1-to-n configurations, Failover for 1-to-n configurations – HP 3PAR Operating System Software User Manual
Page 195
System1 1 10.101.33.96 Down
receive 0 10.100.33.96 Down
receive 1 10.101.33.96 Down
Group Information
Name Target Status Role Mode Options
periodic_group_1.r96 System1 Stopped Secondary Periodic over_per_alert
LocalVV ID RemoteVV ID SyncStatus LastSyncTime
remotevv.0 21 localvv.0 413 Stopped Thu Dec 14 18:23:52 PST 2006
remotevv.1 22 localvv.1 414 Stopped Thu Dec 14 18:23:52 PST 2006
Recovering from Disaster for 1-to-N Configurations
Follow these failover and recovery guidelines to recover from system failure.
Failover for 1-to-N 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 (System2), issue the following command:
# setrcopygroup failover -t
where
The setrcopygroup failover -t command:
•
Changes all secondary volume groups on the failover system (periodic_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 (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
Disaster Recovery for 1-to-N Configurations 195