Protected system crashes after initiating a backup

Beantwortet Protected system crashes after initiating a backup

  • Sonntag, 20. Mai 2012 01:56
     
     

    Just deployed SCDPM 2012 primarily for long-term protection using tape.  We were able to pull off a successful backup of about 5 TB of data from one of our Server 2008 R2 boxes but we have a Server 2003 box (Dell PowerEdge 1950, 4 GB Physical Memory, 4 GB Virtual Memory, 1.6 GHz Quad Core E5310 CPU) that is causing us some grief each time we kick off a recovery point on the ~1.5 TB of data it manages.  Each time, the agent will pull about about 390GB of data and then the System event log starts throwing these errors until the system becomes wedged and ultimately has to be restarted in order to resume normal operation. Based on the initial event, it seems like the culprit is McAfee VSE (v8.8), but we've got other similar systems using McAfee with the same ePolicy policies that have no issues with SCDPM.

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    Event Type: Warning
    Event Source: mfehidk
    Event Category: (256)
    Event ID: 519
    Date: 5/19/2012
    Time: 3:40:42 AM
    User: N/A
    Computer: **
    Description:
    Process **\SVCHOST.EXE pid (912) could not be successfully validated with the mfevtp service and was blocked from performing a privileged operation with a McAfee driver.

    --------------------------

    Event Type: Error
    Event Source: Kerberos
    Event Category: None
    Event ID: 7
    Date: 5/19/2012
    Time: 3:41:56 AM
    User: N/A
    Computer: **
    Description:
    The kerberos subsystem encountered a PAC verification failure.  This indicates that the PAC from the client (DPMSRVR$) in realm DOMAIN had a PAC which failed to verify or was modified.  Contact your system administrator.

    --------------------------

    Event Type: Error
    Event Source: Srv
    Event Category: None
    Event ID: 2020
    Date: 5/19/2012
    Time: 3:42:33 AM
    User: N/A
    Computer: **
    Description:
    The server was unable to allocate from the system paged pool because the pool was empty.

    --------------------------

    Event Type: Error
    Event Source: Application Popup
    Event Category: None
    Event ID: 333
    Date: 5/19/2012
    Time: 3:42:39 AM
    User: N/A
    Computer: **
    Description:
    An I/O operation initiated by the Registry failed unrecoverably. The Registry could not read in, or write out, or flush, one of the files that contain the system's image of the Registry.

    --------------------------

    The 333 error then repeats itself over and over until the system becomes wedged and someone logs in as a console user and restarts it.  After doing some digging it appears that after the DPM kicks off the backup, the amount of Paged Memory used rapidly increases until this event occurs.  So I found this KB article http://support.microsoft.com/kb/312362 and implemented it's suggested actions but the issue still persists.  For instance, just for giggles, I kicked off a DPM backup on this box at 9:30 PM last night and started monitoring the amount of Paged Memory, here's what I recorded...

    Paged Kernel Memory (K)
    9:33 PM  = 67340
    9:44 PM  = 99180
    9:55 PM  = 117716
    10:07 PM = 155708
    10:18 PM = 176864
    10:39 PM = 181584

    11:00 PM = Went to bed :)

    Any help would be greatly appreciated - I've done everything but bang my head against the desk :) Thanks in advance.

Alle Antworten

  • Sonntag, 20. Mai 2012 18:13
    Moderator
     
     Beantwortet

    Hi,

    It sounds like you have a memory leak - you will need to take a perfmon log and see what is gobbling up the memory resources.

    Make sure you have the latest VSS and Volsnap fixes installed since Windows 2003 is sensitive to paged and non-paged pool memory resources when VSS snapshots are active.

    Scalability Factors for Shadow Copies.
    http://technet.microsoft.com/en-us/library/cc755419(WS.10).aspx

    Also - think about upgrading that Windows 2003 server to Windows 2008 which has better memory management and more resoures for VSS shadow copies.


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Regards, Mike J. [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.