Consistency Check

  • Article

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.