Disaster recovery rehearsal in Continentalclusters

Limitations

This section lists the limitation of the DR rehearsals feature.

1. The replication preparation and restoration for rehearsal and restoration for recovery is manual

(i.e., operator has to prepare/restore the replication environment for each recovery group by

following the instructions provided in this white paper and information provided in the Designing

Disaster Recovery HA Clusters Using Metrocluster and Continentalclusters manual).

2. The cmdrprev preview command currently supports only verbose output.

3. Since the replication between the primary and recovery cluster is suspended during rehearsal, the

production changes to the primary mirror copy would not be replicated to the recovery cluster.

Hence in the case of a primary site failure during rehearsal, the production changes since the start

of rehearsal would be lost. Therefore to minimize the “potential” data loss, customers are advised,

to adjust the DR rehearsal time window to be less than the recovery point object.

4. The DR rehearsals feature is not supported for the complex workload packages configured

using SADTA.