Consistency Check
Published : September 27, 2005
A consistency check is the process by which DPM checks for and corrects inconsistencies between a protected volume and its replica.
The performance of the file server, the DPM server, and the network will be affected while a consistency check is running. We recommend that consistency checks be performed during off-peak hours.
DPM automatically performs a consistency check in the following instances:
When a replica is created for a new protection group
When you protect new data sources by adding them to an existing protection group
When you make changes to the disk space allocated to the synchronization log
When a scheduled daily consistency check for a protection group indicates that the replica is inconsistent
If a replica becomes inconsistent because of a synchronization log overflow or an unexpected shutdown of the file server, synchronization with consistency check must be performed. You can perform a manual consistency check or, if a daily consistency check is scheduled, you can wait until DPM performs a consistency check.
You can find instructions in DPM Help (https://go.microsoft.com/fwlink/?linkid=46350) for running consistency checks.
For instructions on performing a consistency check manually, see “How to synchronize a replica” (https://go.microsoft.com/fwlink/?LinkId=51910).
For instructions on scheduling consistency checks, see “How to modify protection options” (https://go.microsoft.com/fwlink/?LinkId=51911).