Types of disaster recovery

Based on the level of protection, the following types of disaster recovery are available:

• Data-level disaster recovery—Replicates data among disaster recovery sites at different locations to avoid data loss or damage in the event of a disaster. To one site, the other sites are remote data backup centers.

• Application-level disaster recovery—Maintains an identical application system on a backup site for failed important applications to fail over to the backup site after a disaster as soon as possible. It enables application systems to offer complete, reliable, and secure services to users.

Figure-1 Types of disaster recovery