HP 3PAR Operating System Software User Manual
Page 162
4.
Verify that the volume groups are started. On the recovered system (SystemA), enter:
# showrcopy groups
•
- Volume group that should be started (for example, multi.1)
Solution
Problem
If the volume groups are not started:
1.
On the recovered system, issue:
startrcopygroup
or:
startrcopygroup -pat
• -pat
multi*)
2.
Wait for the synchronizations to complete before continuing.
CAUTION:
The volume groups must be started before you continue to the next step and issue
the setrcopygroup restore command.
5.
Restore the natural direction of data flow to the Remote Copy system. On the failover system
(SystemC), enter:
# setrcopygroup restore -f -t
•
- Name of the target (recovered) system (SystemA)
The setrcopygroup restore command:
•
Starts tasks for each group that was recovered
•
Starts a final synchronization from the asynchronous periodic backup system (SystemC)
to both the synchronous backup system (SystemB) and the primary system (SystemA) to
ensure that the systems have the most recent data
•
Stops the volume groups
•
Switches the secondary volume groups on the primary system (SystemA) to primary volume
groups
•
Switches the primary volume groups on the asynchronous periodic backup system
(SystemC) to secondary volume groups
•
Returns the primary system (SystemA) to the role of primary system
•
Starts Remote Copy on the primary system (SystemA)
For example, the list of tasks on the synchronous backup system (SystemC) looks like:
# setrcopygroup restore -f -t SystemA
root@xnodeed08:~/bin# waittask -v 6754
Id Type Name Status Phase Step -------StartTime------- -FinishTime-
6754 remote_copy_restore multi.1.r96 active 2/4 1/2 2009-06-29 14:56:49 PDT -
Detailed status:
2009-06-29 14:56:49 PDT Created task.
2009-06-29 14:56:49 PDT Begin Restore operation on group multi.1.r96 started.
2009-06-29 14:56:53 PDT Syncing Synchronization started for group multi.1.r96 to target
SystemA.
2009-06-29 14:56:56 PDT Syncing Synchronization started for group multi.1.r96 to target
162
Disaster Recovery for Synchronous Long Distance