Disaster recovery rehearsal in Continentalclusters

Split the BC pair at recovery cluster.

$) export HORCC_MRCF=1

$) pairsplit –g billing_dg

$) unset HORCC_MRCF

5. Start rehearsal.

$) cmrecovercl -r -g billing_recgp

Note: Using the cmviewcl command, verify that the rehearsal package billing_rhpkg was started.

Note: Before starting rehearsal, make any application configuration required due to change in the client access

IP address which is now the rehearsal package IP address. For example, in case of Oracle Single Instance

application, reconfigure the listener to listen on the rehearsal package IP address.

6. Stop rehearsal package.

$) cmhaltpkg billing_rhpkg

7. Restore replication environment for recovery.

First synchronize the secondary mirror copy with the primary mirror copy and then synchronize the

BC with the secondary mirror copy.

$) pairresync –g billing_dg

$) export HORCC_MRCF=1

$) pairresync –g billing_dg

$) unset HORCC_MRCF

8. Move the recovery group billing_recgp out of maintenance mode.

$) cmrecovercl –e -g billing_recgp

Note: Using the cmviewconcl command verify that the recovery group billing_recgp is not in maintenance mode.

Note: Restore the application configuration required due to change in the package IP address. For example, in case of

Oracle Single Instance application, reconfigure the listener to listen on the recovery package IP address.

Rehearsing recovery of Oracle 10g RAC application

This use case describes the procedure to rehearse recovery of a recovery group configured Oracle

10g RAC application in Continentalclusters using Continuous Access P9000 or XP data replication.

Unless explicitly mentioned, the steps shown below can be executed from any node in the recovery

cluster. It is assumed that the primary package inv_rac10g_primpkg is up on Atlanta cluster and

replication is in progress.

1. Verify data replication environment.

Using the cmdrprev command, the preparation of data replication environment for an actual

recovery can be previewed.

Execute the following command on each node of the recovery cluster and verify that the command

returns a value 0.

#/usr/sbin/cmdrprev -e “/etc/inv_rac10g_recpkg_xpca.env”

2. Move the recovery group inv_rac10g_recgp into maintenance mode.

#cmrecovercl -d -g inv_rac10g_recgp