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Failure to backup and VolSnap errors: related? RRS feed

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    I'm getting some errors during backups; I checked the event log and found a bunch of these going back quite a while.

    Are my failures to backup related?

    Event Type: Error
    Event Source: VolSnap
    Event Category: None
    Event ID: 25
    Date: 5/30/2010
    Time: 3:06:45 PM
    User: N/A
    Computer: SERVER
    Description:
    The shadow copies of volume C:\fs\L were deleted because the shadow copy storage could not grow in time.  Consider reducing the IO load on the system or choose a shadow copy storage volume that is not being shadow copied.

    Here are my backup event logs:

    Event Type: Information
    Event Source: HomeServer
    Event Category: Backup
    Event ID: 260
    Date: 5/30/2010
    Time: 3:20:33 PM
    User: N/A
    Computer: SERVER
    Description:
    Backup of RYCER C:\ has started.

    Event Type: Information
    Event Source: HomeServer
    Event Category: Backup
    Event ID: 257
    Date: 5/30/2010
    Time: 3:21:22 PM
    User: N/A
    Computer: SERVER
    Description:
    The Client Backup Service has stopped.

    Then I get the message about the backup failing. When I view details on the failed backup, there's nothing of interest.

    One of the errors I looked into said something about a path being over 260 characters, which doesn't appear to be the case. This machine is almost completely static, as I only use it for web browsing and irc.
    Monday, May 31, 2010 10:13 AM

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  • Question
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    I'm getting some errors during backups; I checked the event log and found a bunch of these going back quite a while.

    Are my failures to backup related?

    Event Type: Error
    Event Source: VolSnap
    Event Category: None
    Event ID: 25
    Date: 5/30/2010
    Time: 3:06:45 PM
    User: N/A
    Computer: SERVER
    Description:
    The shadow copies of volume C:\fs\L were deleted because the shadow copy storage could not grow in time.  Consider reducing the IO load on the system or choose a shadow copy storage volume that is not being shadow copied.

    Here are my backup event logs:

    Event Type: Information
    Event Source: HomeServer
    Event Category: Backup
    Event ID: 260
    Date: 5/30/2010
    Time: 3:20:33 PM
    User: N/A
    Computer: SERVER
    Description:
    Backup of RYCER C:\ has started.

    Event Type: Information
    Event Source: HomeServer
    Event Category: Backup
    Event ID: 257
    Date: 5/30/2010
    Time: 3:21:22 PM
    User: N/A
    Computer: SERVER
    Description:
    The Client Backup Service has stopped.

    Then I get the message about the backup failing. When I view details on the failed backup, there's nothing of interest.

    One of the errors I looked into said something about a path being over 260 characters, which doesn't appear to be the case. This machine is almost completely static, as I only use it for web browsing and irc.
    That VolSnap error is for Shadow Copies on the server (which don't function correctly, at least not without some unsupported tweaking after a reboot anyway).  As for the backups, do the backups ever successfully complete on that client?  Do you have other clients?  If so, do those complete?  Have you tried running chkdsk /r on each drive in that client?
    Monday, May 31, 2010 5:22 PM
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    For more details about backup failures on a client also check the clients event log.

    Best greetings from Germany
    Olaf

    Tuesday, June 1, 2010 11:29 AM
    Moderator
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    That VolSnap error is for Shadow Copies on the server (which don't function correctly, at least not without some unsupported tweaking after a reboot anyway).  As for the backups, do the backups ever successfully complete on that client?  Do you have other clients?  If so, do those complete?  Have you tried running chkdsk /r on each drive in that client?

    They have completed in the past. I have a half-dozen other clients, and they mostly back up without error. I just ran chkdsk /r on this client; the backup will start in a few minutes and I'll report the results.

    Here are the errors as reported in the client event log:

    Log Name:   Application
Source:    HomeServer
Date:     5/30/2010 3:24:59 PM
Event ID:   770
Task Category: HomeBackup
Level:     Error
Keywords:   Classic
User:     N/A
Computer:   RyCer
Description:
Backup set 55 on SERVER failed: Microsoft.HomeServer.Backup.Protocol.ProtocolException: Client / Server connection lost
  at Microsoft.HomeServer.Backup.Protocol.BackupProtocol.Send(Request request)
  at Microsoft.HomeServer.Backup.Protocol.BackupProtocol.SendClusterHash(Int64 clusterIndex, Byte[] hash)
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.DoClusterPass1()
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.RunWithoutCatch()
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.Run()
  at Microsoft.HomeServer.Backup.BackupOp.BackupSetOperation.RunWithoutCatch()
  at Microsoft.HomeServer.Backup.BackupOp.BackupSetOperation.Run()
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
 <System>
  <Provider Name="HomeServer" />
  <EventID Qualifiers="53247">770</EventID>
  <Level>2</Level>
  <Task>3</Task>
  <Keywords>0x80000000000000</Keywords>
  <TimeCreated SystemTime="2010-05-30T22:24:59.000000000Z" />
  <EventRecordID>8434</EventRecordID>
  <Channel>Application</Channel>
  <Computer>RyCer</Computer>
  <Security />
 </System>
 <EventData>
  <Data>55</Data>
  <Data>SERVER</Data>
  <Data>Microsoft.HomeServer.Backup.Protocol.ProtocolException: Client / Server connection lost
  at Microsoft.HomeServer.Backup.Protocol.BackupProtocol.Send(Request request)
  at Microsoft.HomeServer.Backup.Protocol.BackupProtocol.SendClusterHash(Int64 clusterIndex, Byte[] hash)
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.DoClusterPass1()
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.RunWithoutCatch()
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.Run()
  at Microsoft.HomeServer.Backup.BackupOp.BackupSetOperation.RunWithoutCatch()
  at Microsoft.HomeServer.Backup.BackupOp.BackupSetOperation.Run()</Data>
 </EventData>
</Event>
    Log Name:   Application
Source:    HomeServer
Date:     5/30/2010 3:24:59 PM
Event ID:   773
Task Category: HomeBackup
Level:     Error
Keywords:   Classic
User:     N/A
Computer:   RyCer
Description:
Backup of volume C: to SERVER failed: Microsoft.HomeServer.Backup.Protocol.ProtocolException: Client / Server connection lost
  at Microsoft.HomeServer.Backup.Protocol.BackupProtocol.Send(Request request)
  at Microsoft.HomeServer.Backup.Protocol.BackupProtocol.SendClusterHash(Int64 clusterIndex, Byte[] hash)
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.DoClusterPass1()
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.RunWithoutCatch()
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.Run()
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
 <System>
  <Provider Name="HomeServer" />
  <EventID Qualifiers="53247">773</EventID>
  <Level>2</Level>
  <Task>3</Task>
  <Keywords>0x80000000000000</Keywords>
  <TimeCreated SystemTime="2010-05-30T22:24:59.000000000Z" />
  <EventRecordID>8433</EventRecordID>
  <Channel>Application</Channel>
  <Computer>RyCer</Computer>
  <Security />
 </System>
 <EventData>
  <Data>55</Data>
  <Data>C:</Data>
  <Data>SERVER</Data>
  <Data>Microsoft.HomeServer.Backup.Protocol.ProtocolException: Client / Server connection lost
  at Microsoft.HomeServer.Backup.Protocol.BackupProtocol.Send(Request request)
  at Microsoft.HomeServer.Backup.Protocol.BackupProtocol.SendClusterHash(Int64 clusterIndex, Byte[] hash)
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.DoClusterPass1()
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.RunWithoutCatch()
  at Microsoft.HomeServer.Backup.BackupOp.BackupOperation.Run()</Data>
 </EventData>
</Event>

    WRT the volsnap:

    Microsoft Windows [Version 5.2.3790]

    (C) Copyright 1985-2003 Microsoft Corp.

     

    C:\Documents and Settings\Administrator>VssAdmin List ShadowStorage

    vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool

    (C) Copyright 2001 Microsoft Corp.

     

    Shadow Copy Storage association

       For volume: (D:)\\?\Volume{cdc1b89a-08cb-11df-939c-af660d4fe3fb}\

       Shadow Copy Storage volume: (D:)\\?\Volume{cdc1b89a-08cb-11df-939c-af660d4fe3fb}\

       Used Shadow Copy Storage space: 293.543 MB

       Allocated Shadow Copy Storage space: 500.059 MB

       Maximum Shadow Copy Storage space: 44.575 GB

     

    Shadow Copy Storage association

       For volume: (C:\fs\H\)\\?\Volume{ce85156f-3167-11df-b004-000e0c8491cb}\

       Shadow Copy Storage volume: (C:\fs\H\)\\?\Volume{ce85156f-3167-11df-b004-000e0c8491cb}\

       Used Shadow Copy Storage space: 17.89 GB

       Allocated Shadow Copy Storage space: 18.104 GB

       Maximum Shadow Copy Storage space: 139.725 GB

     

    Shadow Copy Storage association

       For volume: (C:\fs\L\)\\?\Volume{0f2d48f0-3aef-11df-af76-000e0c8491cb}\

       Shadow Copy Storage volume: (C:\fs\L\)\\?\Volume{0f2d48f0-3aef-11df-af76-000e0c8491cb}\

       Used Shadow Copy Storage space: 35.919 GB

       Allocated Shadow Copy Storage space: 36.206 GB

       Maximum Shadow Copy Storage space: 139.725 GB

     

    I didn't do anything to enable this; how did they get enabled?

    Tuesday, June 1, 2010 6:35 PM
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    What would happen if you reconfigure the client backup to leave out the volume from backup, on which the backup fails? If the other drives run through, I would assume the problem is either related to the volume or to the backup database on the server in a section, in which information for this volume is stored.

    Client/Server connection lost can have several causes - i.e. either the client stopped to deliver data in time (maybe due to a problem with the volume it attempts to backup or an network issue) or the server fails to write the backup data into the backup database in time (or report back, that it has completed this task).

    On the server desktop, if you click Start/Run and enter %qlogs%, you will see the folder with the WHS specific logfiles on the server. Would you see there more details?

    Best greetings from Germany
    Olaf

    Tuesday, June 1, 2010 9:29 PM
    Moderator