Recovering data from backups after a disk crash or other catastrophe.
The process of restoring information from a backup after the original data was lost (due to a disaster) or deleted.
The use of a secondary location to recover applications and data after a site failure. Disaster recovery requires heartbeating and replication.
Administrators with clusters in physically disparate areas can set the policy for migrating applications from one location to another if clusters in one geographic area become unavailable due to an unforeseen event. Disaster recovery requires heartbeating and replication.
Disaster Recovery (DR) has a wide scope, which ranges from the storage of backup tapes off site to the setup and maintenance of a duplicate remote standby node. aids disaster recovery by providing timely replication of data to a remote site.