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Problems with DPM backup of a VM on Hyper-V RRS feed

  • Question

  • Hi,

    I'm having a problem with backing up some VMs with DPM 2010 on a Hyper-V cluster with 2 nodes. It's a fairly simple setup. All in the same domain. all on the same subnet. No firewalls in between.

    Backup of most VMs occurs without any trouble. On some of the VMs I'm having 2 kind of problems.

    Problem Type 1
    ==============
    2 VM's (Printserver running Server 2003) report a "Recovery Point creation failed"

    The DPM server reports: 
    ****
    Recovery point creation jobs for Microsoft Hyper-V \Backup Using Child Partition Snapshot\10 on 10 (CSV1).VMCL have been failing. The number of failed recovery point creation jobs = 1.
    If the datasource protected is SharePoint, then click on the Error Details to view the list of databases for which recovery point creation failed. (ID 3114)
    ****
    DPM encountered a retryable VSS error. (ID 30112 Details: VssError:The writer experienced a transient error.  If the backup process is retried,
    the error may not reoccur.
     (0x800423F3))
    ****
    Check the Application Event Log on T730 for the cause of the failure. Fix the cause and retry the operation.
    For more information on this error, go to http://go.microsoft.com/fwlink/?LinkId=132612.

    Chossing "Create a recovery point" does not solves the problem.

    The eventlog on the protected host reports:

    Log Name:      Microsoft-Windows-Hyper-V-VMMS-Admin
    Source:        Microsoft-Windows-Hyper-V-VMMS
    Date:          7/09/2010 8:12:25
    Event ID:      10102
    Task Category: None
    Level:         Error
    Keywords:      
    User:          SYSTEM
    Computer:      <hostname>
    Description:
    Failed to create the backup of virtual machine '10'. (Virtual machine ID 732FEFE6-9DAD-49F4-991E-0B4BD5F7EF32)
    Event Xml:
    <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
      <System>
        <Provider Name="Microsoft-Windows-Hyper-V-VMMS" Guid="{6066F867-7CA1-4418-85FD-36E3F9C0600C}" />
        <EventID>10102</EventID>
        <Version>0</Version>
        <Level>2</Level>
        <Task>0</Task>
        <Opcode>0</Opcode>
        <Keywords>0x8000000000000000</Keywords>
        <TimeCreated SystemTime="2010-09-07T06:12:25.568223600Z" />
        <EventRecordID>2080</EventRecordID>
        <Correlation />
        <Execution ProcessID="2140" ThreadID="8532" />
        <Channel>Microsoft-Windows-Hyper-V-VMMS-Admin</Channel>
        <Computer>T730</Computer>
        <Security UserID="S-1-5-18" />
      </System>
      <UserData>
        <VmlEventLog xmlns:auto-ns2="http://schemas.microsoft.com/win/2004/08/events" xmlns="http://www.microsoft.com/Windows/Virtualization/Events">
          <VmName>10</VmName>
          <VmId>732FEFE6-9DAD-49F4-991E-0B4BD5F7EF32</VmId>
        </VmlEventLog>
      </UserData>
    </Event>


    Problem Type 2
    ==============
    1 VM (running Server 2003) report a "Replica is inconsistent"

    DPM reports:
    ****
    The replica of Microsoft Hyper-V \Backup Using Child Partition Snapshot\LMC2 on LMC2 (CSV1).VMCL is inconsistent with the protected data source. All protection activities for data source will fail until the replica is synchronized with consistency check. You can recover data from existing recovery points, but new recovery points cannot be created until the replica is consistent. 
    For SharePoint farm, recovery points will continue getting created with the databases that are consistent. To backup inconsistent databases, run a consistency check on the farm. (ID 3106)
    ****
    DPM encountered a retryable VSS error. (ID 30112 Details: VssError:The writer experienced a transient error.  If the backup process is retried,
    the error may not reoccur.
     (0x800423F3))
    ****
    Check the Application Event Log on T530 for the cause of the failure. Fix the cause and retry the operation.
    For more information on this error, go to http://go.microsoft.com/fwlink/?LinkId=132612.

    Anyone has an idea what can be wrong?






    Tuesday, September 7, 2010 1:40 PM

Answers

All replies

  • The DPM alert will have a "More Information" link which will take you to technet page with additional steps that you can do resolve the issue. Here is the direct URL to that link. All the known reasons are listed there. Let us know if this does not help.

    http://technet.microsoft.com/en-us/library/ff918788.aspx

     


    Thanks Shyama Hembram[MSFT] This posting is provided AS IS, with no warranties, and confers no rights.
    Tuesday, September 7, 2010 5:59 PM
    Moderator
  • If the above suggested answer do not help in resolving the thread please re-open it.
    Cheers, Tyler F [MSFT] - This posting is provided "AS IS" with no warranties, and confers no rights.
    Wednesday, September 8, 2010 12:00 PM
    Moderator
  • Hi Shyama,

    Thanks for your answer. A few of the VSS writers were in Failed state. Installing the VSS rolup package for Server 2003 did the job.

    Kind Regards,

    Wednesday, September 8, 2010 2:09 PM