HBase backup and disaster recovery strategies
Backup-and-restore is a standard set of operations for many databases. You must have an effective backup-and-restore strategy to ensure that you can recover data in case of data loss or failures.
HBase snapshot enables you to take a snapshot of a table without much impact on RegionServers, because snapshot, clone, and restore operations do not involve data copying. In addition, exporting a snapshot to another cluster has no impact on RegionServers.
If your data is already in an HBase cluster, replication is useful for getting the data into additional HBase clusters.