Jaa

Remapping Drives

  • Artikkeli

A customer changed the drive letters for several volumes that were being protected by DPM. Then he noticed that the new drive letters weren't showing up consistently in DPM Administrator Console.

The Protection task area displayed the new drive letter, but the Monitoring and Recovery task areas still showed the old drive letter. The logs had the same problem.

There was much time spent in the lab trying to reproduce the problem -- figuring out how to break something leads to how to fix it -- but the bottom line is that DPM doesn't support drive remapping. The fix is also the procedure for changing drive letters of protected volumes:

  1. Remove the protected volumes from the protection groups, while selecting to retain the data.
    (When you choose to retain data, DPM saves the replica and shadow copies for the protection group member being removed.)
  2. Change the drive letter.
    (If you already changed the drive letter and are trying to fix the drive letters in DPM, just skip this step.)
  3. Add the volumes to a protection group -- either the old one or a new one, doesn't matter.
    (DPM will see that the "new" protection group member already has an existing replica, so will run a consistency check and all of the drive letters should match up at that point.)