Recovery in 1-to-1 remote-copy configurations – HP 3PAR Operating System Software User Manual
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2.
Verify the reversal of volume group roles:
a.
Issue the showrcopy command on the failover system (System2).
b.
In the Group Information area, check that the Role column for the reversed volume
group displays Primary-Rev (primary as a result of reversal).
For example, the following showrcopy output for System2 shows that the Role of
sync_group_1.r96
is now Primary-Rev:
# showrcopy
Remote Copy System Information
Status: Started, Normal
Target Information
Name ID Type Status Options Policy
System1 2 IP failed mirror_config
Link Information
Target Node Address Status Options
System1 0 10.100.33.96 Down
System1 1 10.101.33.96 Down
receive 0 10.100.33.96 Up
receive 1 10.101.33.96 Up
Group Information
Name Target Status Role Mode Options
sync_group_1.r96 System1 Stopped Primary-Rev Sync
LocalVV ID RemoteVV ID SyncStatus LastSyncTime
remotevv.0 375 localvv.0 413 Stopped Thu Dec 14 17:50:53 PST 2006
remotevv.1 376 localvv.1 414 Stopped Thu Dec 14 17:50:52 PST 2006
Name Target Status Role Mode Options
sync_group_2 System1 Stopped Primary Sync
LocalVV ID RemoteVV ID SyncStatus LastSyncTime
localvv.0 385 remotevv.0 423 Stopped Thu Dec 14 17:51:48 PST 2006
localvv.1 386 remotevv.1 424 Stopped Thu Dec 14 17:51:44 PST 2006
3.
(Optional) To back up data in the reversed volume groups, export the reversed virtual volumes
(remotevv.0 and remotevv.1) as read/write snapshots.
Recovery in 1-to-1 Remote-Copy Configurations
1.
Recover the failed system.
2.
When both systems in the remote-copy pair are ready to resume normal operation, reverse
the natural direction of data flow and resynchronize the systems. On the failover system
(System2), issue the following command:
# setrcopygroup recover -t <target_name>
where <target_name> represents the name of the target system with which to synchronize
(System1).
The setrcopygroup recover command copies data from the reversed volume groups on
the failover system to the corresponding volume groups on the recovered system. In this
example, it copies data from the virtual volumes in volume group sync_group_1.r96 on
System2
to sync_group_1 on System1.
3.
Verify that the remote-copy pair is synchronizing:
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Disaster Recovery for 1-to-1 Configurations