20 disaster recovery for 1-to-1 configurations – HP 3PAR Operating System Software User Manual

Page 103

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20 Disaster Recovery for 1-to-1 Configurations

Before you begin disaster recovery:

Figure 24 (page 104)

1.

Acquaint yourself with the example Remote Copy pair
used to illustrate 1-to-1 disaster recovery.

“System Information during Normal Operation” (page 104)

2.

Familiarize yourself with system information for 1-to-1
configurations.

“System Information during Failover” (page 106)

3.

Understand the system information to look for during a
failover.

Recover the systems:

“Recovering from Disaster” (page 107)

1.

Change secondary volume groups to primary.

2.

Export recovered data if desired.

3.

Recover the failed system.

4.

Reverse the natural direction of data flow and
synchronize data.

5.

Verify volume groups are started.

6.

Restore the natural direction of data flow.

Additional Information:

“About the Remote Copy Commands” (page 222)

“Quick Disaster Recovery Guide” (page 220)

The disaster recovery steps for 1-to-1 configurations refer to the example setup illustrated in

Figure 24

(page 104)

.

103

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