Reassigning the drive letter or mount points of the missing volumes to the snapshot volumes

Last published : Aug 04, 2026
If the production volume was missing, change the drive letter or mount point of the snapshot volume to the drive letter or mount point that was assigned to the missing production volume. If the production volume is healthy and available, do not make any changes.
The procedure has the following two stages:
  • Note down the assigned drive letter or mount path of the production volume so that you can reassign the same drive letter or mount path to the snapshot volume. Then remove the existing drive letter or mount path from the production volume.
  • Change the drive letter or mount path of the snapshot volume to the production volume drive letter or mount path.
The steps for changing a drive letter vary slightly from the steps for changing a mount point. Follow the procedure that best fits your environment.
To remove the drive letter or mount path from the production volume
  1. Right-click the production volume, click File System and clickChange Drive Letter and Path.
  2. On the Drive Letter and Paths screen, click Remove.
  3. Click OK.
  4. Click Yes to confirm your choice.
To change a snapshot volume drive letter to the production volume drive letter
  1. Right-click the snapshot volume, click File System > Change Drive Letter and Path.
  2. On the Drive Letter and Paths screen, select Modify.
  3. From the assign drive letter list, select the drive letter originally assigned to the production volume.
  4. Click OK.
To change a snapshot volume mount point to a production volume drive letter
  1. Right-click the snapshot volume, click File System and clickChange Drive Letter and Path.
  2. On the Drive Letter and Paths screen, click Remove.
  3. Click OK.
  4. Click Yes to confirm your choice.
  5. Assign the new drive letter. Right-click the snapshot volume, click File System and clickChange Drive Letter and Path.
  6. Click Add.
  7. Select the drive letter originally assigned to the associated production volume.
  8. Click OK.
To change a snapshot volume mount point to a production volume mount point
  1. Right-click the snapshot volume, click File System and clickChange Drive Letter and Path.
  2. On the Drive Letter and Paths screen, click Remove.
  3. Click OK.
  4. Click Yes to confirm your choice.
  5. Assign the new mount point. Right-click the snapshot volume, click File System and clickChange Drive Letter and Path.
  6. Click Add.
  7. Click Mount as an empty NTFS folder and clickBrowse.
  8. Navigate to the folder where the production volume was mounted.
  9. Click OK.
  10. Click OK to assign the mount point.
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