Backing up Drive that's Volume Name (Guid) changes RRS feed

  • Question

  • Hi,

    We Used DPM 1807 to backup Data on Windows 10 Clients, but we faced an issue after format D drive on Windows Client, the format process change GUID for the Volume, so DPM was unable to detect the correct GUID, we use a workaround but for windows 7 to change GUID and match it with the old one that DPM needs in order to backup from registry but unfortunately this not help anymore to windows 10 

    any help plz 

    IT Helpdesk

    Tuesday, November 19, 2019 11:19 AM

All replies

  • Hi,

    DPM uses the Volume GUID to recognize the volume, if a volume GUID is changed, DPM will consider this as a new volume.

    You could try using the Migrate-DataSource.ps1 script to re-associate the DPM replica to the new GUID.

    Best regards,

    Blog: LinkedIn:

    Tuesday, November 19, 2019 11:35 AM
  • Could you please tell me the steps to use the script, also the script re-associate the new volume guid that located on the client to DPM server right ?

    IT Helpdesk

    Tuesday, November 19, 2019 11:39 AM
  • Check the syntax in the provided link.


    The Bolded items are the user inputs.  

    PS C:\Program Files\Microsoft DPM\DPM\bin> migrate-datasource
    DPMServer: DPM01
      auto for AUTO SEARCH for matching volume letters
      manual for MANUAL INPUT of 'from' and 'to' Volumes, to be migrated
    option( auto or manual): manual
    PSName: FS01
    Running inquiry on the PS

    List of fileSystem datasources under protection(candidates for migration):
    1 E:\   File Server FS01

    Number: 1
    The old datasource selected is : File Server FS01   E:\

    The following are the list of Datasourcevolumes available for protection, which would u like to consider:
    (Migration not allowed from normal volume to a mounted volume)
    1 C:\

    2 E:\

    Number: 2

    The New datasource selected is  E:\
    Confirm migration (Y/N)? : Y
    newDataSource= E:\ oldDataSource= E:\

    Migration Completed for newDataSource= E:\ oldDataSource= E:\
    Running inquiry on the PS for App restore

    Run Consistency check to make replica Valid

    PS C:\Program Files\Microsoft DPM\DPM\bin>



    Blog: LinkedIn:

    Tuesday, November 19, 2019 11:46 AM
  • Hi,

    Just checking to see if you have any update on your issue?

    If your issue was resolved, may I ask you to mark all the answers that helped you? This way it will also help others in the future who face the same challenge. Many thanks in advance!

    Best regards,

    Blog: LinkedIn:

    Wednesday, December 11, 2019 9:34 PM