Disaster recovery rehearsal in Continentalclusters

Complete the following steps to create a modular rehearsal package in a 3DC environment:

a. Create a package configuration identical to the recovery package configuration but without

Metrocluster with Continuous Access for P9000 and XP 3DC recovery module

dts/recovery_xpca3dc.

b. Change the values of the following parameters:

• package_name

• package_ip

• service_name

For all other parameters, provide the same values as specified in the recovery package

configuration.

c. Validate the package configuration.

# cmcheckconf –P <package_name>

d. Apply the package configuration.

# cmapplyconf –P <package_name>

For information about how to configure a rehearsal package in Continentalclusters, see “

Configuring

Continentalclusters rehearsal packages as modular packages”. Unlike in Continentalclusters, in a 3DC

environment the recovery packages at the recovery cluster are created with dts/recovery_xpca3dc

module. Hence, while creating rehearsal packages, this module should be omitted.

Configure Continentalclusters configuration file

Configure the CONTINENTAL_CLUSTER_STATE_DIR parameter in the Continentalclusters

configuration file which is the absolute path to the Continentalclusters state directory where the state

related information required for maintenance mode feature is stored. Also configure the

REHEARSAL_PACKAGE parameter in the recovery group section with the rehearsal package

information in the configuration file.

For information about how to configure the CONTINENTAL_CLUSTER_STATE_DIR and

REHEARSAL_PACKAGE parameters in the Continentalclusters configuration file and how to apply the

updated configuration file, see the section “

Continentalclusters configuration”.

Rehearsing recovery in a 3DC DR solution

Complete the following steps to perform rehearsal at the third site i.e. at the recovery cluster in a

3DC environment:

This section describes how to perform a Continentalclusters recovery rehearsal in a 3DC DR solution.

The following steps can be executed from any of the recovery cluster nodes at the third site:

1. Verify the data replication environment.

Use the cmdrprev command to preview the data replication environment preparation for an actual

recovery. Run the following command on every node in the recovery cluster at the third site to

determine if the return value is always 0:

#/usr/sbin/cmdrprev -p <recovery_package>

2. Move the recovery group into maintenance mode:

# cmrecovercl -d -g <recovery_group>

3. Verify that the recovery group is in maintenance mode:

# cmviewconcl -v