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Error 30216 - DPM 2010 has detected a discontinuity in the log chain RRS feed

  • Question

  • Hi Guys,

    We are running DPM 2010 on a Windows Server 2008 R2 Standard edtion. We are backing up our Exchange 2007 storage group through DPM 2010. However for these past few days, it's not backing up one of our storage group and we're getting this error below. 

    Creation of recovery points for MSG1 on exchange2007.domain.com have failed.
    The last recovery point creation failed for the following reason: (ID: 3114) DPM has detected a discontinuity in the log chain for MSG1 on exchange2007.domain.com since the last synchronization. (ID: 30216)
      
       3114
       a95cf972-a37d-4ef6-9630-e1eb47c234d2
       dpm2010.domain.com
       exchange2007.domain.com
       a95cf972-a37d-4ef6-9630-e1eb47c234d2
         
       Recovery point creation failures
       678994be-5e20-47a4-ab7c-95bcd5e7d817
       Creation of recovery points for MSG1 on exchange2007.domain.com have failed. The last recovery point creation failed for the following reason: (ID: 3114) DPM has detected a discontinuity in the log chain for MSG1 on exchange2007.domain.com since the last synchronization. (ID: 30216)
       30216
       1
       86600.0068916

      

    Below are the steps we did to try to resolve issue:

    1. Confirmed that Circular Logging is Disabled on the specified storage group.

    2. In DPM Administrator Console, in the Protection task area, select the volume, click Create recovery point, and then, in the Actions pane, click Express full backup.

    3. Run a consistency check (Currently the protected storage now shows that the "Replica is Inconsistent")

    4. Stopped the protection for the specified storage group and deleted all the replica from the disk.

    5. Add the specified storage group again to the protection group and run consistency check but it still appears as "Replica Inconsistent"

    6. Restart Exchange Information Store and run consistency check again as what this link (http://www.buchatech.com/category/microsoft/data_protection_manager/) suggested but it didn't work.

     

    All these steps that we did didn't solve the issue. The specified storage group still appear "Replica Inconsisten" on the protection tab of our DPM 2010 console. Your help will be much appreciated. Thanks in advance!

     

    Friday, April 15, 2011 1:33 AM

Answers

  • Hello,

    This article may be of some help to you.

    http://technet.microsoft.com/en-us/library/ff399627.aspx

    Explanation
    This error can occur when you use Windows Server Backup to create backups of a volume that is protected by DPM, which can truncate the Exchange Server or SQL Server logs.

    User Action
    To resolve this error, do the following:
     If you use Windows Server Backup to back up a volume, only do so by using the Backup Once Wizard.

     If you use the Backup Schedule Wizard to perform scheduled backups, ensure that the volumes that are being protected by DPM do not contain application data such as Exchange Server mailbox stores or SQL Server databases.


     Reconfigure Windows Server Backup. Then, in DPM Administrator Console, in the Protection task area, select the volume, click Create recovery point, and then, in the Actions pane, click Express full backup.

    Thanks,
    Shane

    Saturday, April 23, 2011 2:33 PM
    Moderator

All replies

  • Hi CDM2010,

    is there antoher backup proces running in between DPM 2010 Syncs?

    kind regards,

    Alex Smits

    Tuesday, April 19, 2011 10:41 AM
  • Hello,

    This article may be of some help to you.

    http://technet.microsoft.com/en-us/library/ff399627.aspx

    Explanation
    This error can occur when you use Windows Server Backup to create backups of a volume that is protected by DPM, which can truncate the Exchange Server or SQL Server logs.

    User Action
    To resolve this error, do the following:
     If you use Windows Server Backup to back up a volume, only do so by using the Backup Once Wizard.

     If you use the Backup Schedule Wizard to perform scheduled backups, ensure that the volumes that are being protected by DPM do not contain application data such as Exchange Server mailbox stores or SQL Server databases.


     Reconfigure Windows Server Backup. Then, in DPM Administrator Console, in the Protection task area, select the volume, click Create recovery point, and then, in the Actions pane, click Express full backup.

    Thanks,
    Shane

    Saturday, April 23, 2011 2:33 PM
    Moderator
  • Solution

    1. Dismount Mailbox
      Databases in the Storage Group;
    2. Move all .log files
      from the Exchange database directory to another directory;
    3. Mount the databases
      again, all logfiles ar gone and you should now be able to perform a
      backup;
    4. You can delete the
      moved logfiles when everything is working correctly again.

    sys_admin

    Wednesday, July 11, 2012 5:21 AM
    Moderator
  • the only time I've ever experienced this issue is a result of another backup product/process accessing the transaction logs of SQL or Exchange.
    Friday, July 20, 2012 3:00 PM
  • I was having this issue as well, I think because I was backing up the Exchange VM in DPM through Hyper-V in addition to backing up the Exchange databases.
    Thursday, January 24, 2013 5:28 PM