Recovering from disaster for 1-to-1 configurations, Failover in 1-to-1 remote-copy configurations – HP 3PAR Operating System Software User Manual

Page 175

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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

Recovering from Disaster for 1-to-1 Configurations

Follow these failover and recovery guidelines to recover from system failure.

Failover in 1-to-1 Remote-Copy 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 <target_name>

where <target_name> represents the name of the target system that failed (System1).

The setrcopygroup failover -t command:

Changes all secondary volume groups on the failover system (sync_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 (sync_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)

.

Recovering from Disaster for 1-to-1 Configurations

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