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Error when removing member from Protection Group

Unanswered Error when removing member from Protection Group

  • Thursday, January 17, 2013 4:04 PM
     
     
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    Hi,

    After the Rollup 1 for SP1 we are having problems with 2 protection groups. During a rolling upgrade to Server 2012 we've moved a couple of VM's around and it seems that the a couple of VM's are in 2 protection groups at once. When we try to change the protection group we get :

    Removing \Backup Using Child Partition Snapshot\SERVER1 failed: Error 157: Backup Using Child Partition\SERVER1 cannot be added to protection group because it is already a member of a protection group.

    We've tried about everything but cannot seem to get it working again.

    Anyone with bright ideas ?

    Regards,

    Dennis

     

All Replies

  • Friday, January 18, 2013 8:10 PM
     
     
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    Did you try the powershell way?

    To remove a protection group member by using DPM Management Shell

    • Use the following syntax to remove a member from a protection group:

      Remove-ChildDatasource -ChildDatasource                <ProtectableObject[]>               -ProtectionGroup                <ProtectionGroup>               [-PassThru] [-KeepDiskData]            

      For more information, type "Get-Help Remove-ChildDatasource -detailed" in DPM Management Shell.

      For technical information, type "Get-Help  Remove-ChildDatasource-full" in DPM Management Shell.

    If you are moving vm's around maybe it's a good idea to check the combination between VMM and DPM in regards to live migration backups:

    http://technet.microsoft.com/en-us/library/hh757866.aspx

    It's doing common things uncommonly well that brings succes.

     
  • Tuesday, January 22, 2013 9:45 AM
     
     
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    I have the same issue and the powershell way doesn't help.  I get this message:

    Set-DPMProtectionGroup : Backup Using Child Partition Snapshot\Computer1 cannot be
     added to protection because it is already a member of a protection group (ID:
    157)
    At \\pmw8\c$\Temp\DeletePG2.ps1:10 char:20
    + Set-ProtectionGroup <<<<  $mpg
        + CategoryInfo          : NotSpecified: (:) [Set-DPMProtectionGroup], DlsE
       xception
        + FullyQualifiedErrorId : ProtectedGroupOverlap,Microsoft.Internal.Enterpr
       iseStorage.Dls.UI.Cmdlet.ProtectionCmdLets.CommitProtectionGroup