Replication of Oracle RAC Databases

The replication feature enables incremental replication from a backup of an Oracle RAC database to a synced copy of the Oracle RAC database. The replication operation continuously applies changes from the source database backups since the last sync point.

You can use the replication feature on databases that run Oracle Standard or Enterprise Editions.

The replication feature performs the following procedures:

  • Initiates the replication automatically after a backup is completed on the source database.

  • Minimizes the impact on production systems CPU and I/O by using the backup data for replications. This method avoids the need to read the source database again for replication.

  • Copies the backup data to remote disaster recovery (DR) sites with deduplication to minimize the wide area network (WAN) traffic. replication then runs at the DR site.

  • Initiates replication after the auxiliary copy completes, when you use a copy precedence for replication.

If no new backups have been run since the last replication, then the scheduled replication does not run.

If Oracle data is protected by multiple schedules or subclients, the software replicates the database from the subclient that has the most recent backup.

Use the following backup types to replicate Oracle RAC databases:

  • Traditional backups

  • Auxiliary copies

  • Backup copies

Note

Do not perform IntelliSnap backups on the destination after a replication operation. If a snapshot exists, then subsequent replication operations fail.

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