HP 3PAR Operating System Software User Manual
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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 by performing the following
steps:
a.
Stop I/O to the reversed volume groups on the failover system.
b.
On the failover system (System1), issue the following command:
# setrcopygroup recover -t <target_name>
where <target_name> represents the name of the target system with which to
synchronize (System2).
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 periodic_group_1.r96
on System1 to periodic_group_1 on System2.
3.
Verify that the remote-copy pair is synchronizing:
a.
Issue the showrcopy command on the failover system (System1).
b.
Verify that for the target system (System2):
•
the Status of the target system is ready
•
the Status of all sending links is Up
•
the SyncStatus of all volumes in the Primary-Rev volume groups is Syncing
The following example shows the showrcopy command output for System1:
# showrcopy
Remote Copy System Information
Status: Started, Normal
Target Information
Name ID Type Status Options Policy
System2 7 IP ready mirror_config
System3 8 IP ready mirror_config
Link Information
Target Node Address Status Options
System2 0 10.100.33.96 Up
System2 1 10.101.33.96 Up
System3 0 10.100.33.11 Up
System3 1 10.101.33.11 Up
receive 0 10.100.33.96 Up
receive 1 10.101.33.96 Up
Group Information
Name Target Status Role Mode Options
periodic_group_1.r96 System2 Started Primary-Rev Periodic Last-Sync Thu Dec 14 18:39:03
PST 2006 , over_per_alert
LocalVV ID RemoteVV ID SyncStatus LastSyncTime
remotevv.0 21 localvv.0 413 Syncing (40%) Thu Dec 14 18:23:52 PST 2006
remotevv.1 22 localvv.1 414 Syncing (50%) Thu Dec 14 18:39:03 PST 2006
Name Target Status Role Mode Options
periodic_group_2.r11 System3 Started Secondary Periodic over_per_alert
LocalVV ID RemoteVV ID SyncStatus LastSyncTime
Disaster Recovery for N-to-1 Configurations
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