Plan for workload recovery
Updated: November 1, 2013
Applies To: System Center 2012 - Data Protection Manager, System Center 2012 R2 Data Protection Manager, System Center 2012 SP1 - Data Protection Manager
In System Center 2012 - Data Protection Manager (DPM) recovery is the process of retrieving data that has been backed up for protected workloads.
DPM uses recovery points to recover data. Recovery points, also referred to as snapshots, are a point-in-time copy of the workload data protected by DPM. Recovery points fit into the DPM protection process as follows: In the recovery process, you select the recovery point you want, and DPM recovers the data to the protected resource.
Create initial replica—When you configure a resource as a member of a protection group, you are prompted to create an initial replica of the data. This initial replica creates a baselines copy of the protected data. This baseline replica is used to create a recovery point, and when DPM synchronizing data changes and differences.
Synchronize—To synchronize, DPM checks the replica to see if changes have occurred, and then updates the replica with the changes.
Create recovery point—Creating a recovery point creates a point-in-time copy of a replica that can be used for the purpose of recovery if required.
Note the following:
DPM can store a maximum of 64 recovery points for each file member of a protection group. For application data sources, DPM can store up to 448 express full backups and up to 96 incremental backups for each express full backup. When storage area limits have been reached and the retention range for the existing recovery points is not met yet, protection jobs will fail.
DPM creates recovery points for file data by taking a shadow copy of the replica on a schedule that you configure. For application data, each synchronization and express full backup creates a recovery point.
You recover data from available recovery points by using the Recovery Wizard in DPM Administrator Console. When you select a data source and point in time from which to recover, DPM notifies you if the data is on tape, whether the tape is online or offline, and which tapes are needed to complete the recovery.
To support end-user recovery, the recovery points for files are limited to 64 by Volume Shadow Copy Service (VSS).
The following illustration shows how each protection group member is associated with its own replica volume and recovery point volume.
Protection Group Members, Replicas, and Recovery Points
For additional resources, see Information and Support for System Center 2012.
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