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PowerProtect Data Manager 19.14 Network-Attached Storage User Guide

NAS replication triggers

PowerProtect Data Manager orchestrates protection policy replication objectives independently of the primary backup. When you add a replication objective to a policy, select one of the available triggers.

The default replication trigger is a schedule window that you define by setting a recurrence period plus start and end times. Replication occurs during the defined window. For example, every day between 8 p.m. and 12 a.m.

You can also trigger replication immediately after the completion of the associated primary backup, whether scheduled or manual. At the start of the primary backup, PowerProtect Data Manager generates an associated replication job that remains queued until the end of the protection job. If the backup fails or completes with exception, the associated replication job is skipped. Restarting the protection job queues the associated replication job again.

When you create a replication objective, you can specify either scheduled replication or replication after backup completion, which is applicable to both centralized policies.

NOTE:For replication after backup completion, it is recommended that you update the application agents to the latest version.

Depending on the type of backup, the following versions are required to ensure that replication occurs immediately after the backups complete:

  • For self-service primary backups, update all application agents to PowerProtect Data Manager version 19.12 or later.
  • For centralized primary backups, update all application agents to PowerProtect Data Manager version 19.11 or later.
If you want to replicate only specific backups, perform a manual replication of these backups in advance.

Using a schedule can help you manage network traffic by replicating during off-peak hours. However, for larger backup sets, the primary backup may not finish before the start of the replication schedule, which creates a replication backlog. Replication after backup completion prevents a replication backlog from forming.

To prevent data loss, the replication after backup completion trigger replicates new backups from the primary objective and any outstanding backups that have not yet replicated.

A job status of Completed with Exceptions during replication

After a triggered replication job, you might see a job status message similar to the following:

Completed with Exceptions
ABA0017: plc_linux_rac: Backup was successful for the ORACLE_DATABASE asset ORCLPP on the host blrv009d132.blr.lab.emc.com but the copy metadata information is currently unavailable.

The backup of this asset completed successfully but the copy metadata information has not yet been discovered by PowerProtect Data Manager. If the 'Replicate immediately upon backup completion' option is enabled for this protection policy, the replication job for the copy might appear in 'Unknown' or 'Cancel' state. Once the copy metadata is discovered by PowerProtect Data Manager, the copy will be replicated.

Review the backup copy details in the View Copies pane of the PowerProtect Data Manager UI Infrastructure > Assets window to determine when the discovery is complete.

If you see this message, the replication backup is not immediately available.

To correct this issue, either wait for the next automatic discovery or initiate a discovery.


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