Replica Instance Promotion for Disaster RecoveryReplica Instance Promotion for Disaster Recovery
You can restore a malfunctioning primary instance by promoting a replica instance to become the primary instance.
Promoting a replica instance restores the primary instance more quickly than replacing the primary instance with a new appliance, but the replica instance available for promotion needs to be physically accessible to an Operations Console administrator to facilitate ongoing administration.
Promoting a replica instance to be the primary instance changes the topology of a deployment in the following ways:
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The malfunctioning primary instance is deleted from the deployment.
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The promoted replica instance becomes the new primary instance.
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If web tiers are associated with the old primary instance, you must restart the web tiers that are associated with the old primary instance.
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If web tiers are associated with any replica instance in the deployment, you must restart the web tiers that are associated with any replica instance.
