I'm getting the following error event while attempting to back-up a running VM. The guest and host are both fully-patched R2. If I turn off the guest OS before doing the back-up it works fine, but we'd rather avoid that. I've tried starting and stopping the VSS service, uninstalling and reinstalling Hyper-V, and uninstalling and reinstalling Windows Back-up. The event also causes the Hyper-V VSS writer to set the following status:
Writer name: 'Microsoft Hyper-V VSS Writer'
Writer Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}
Writer Instance Id: {6f53836f-8893-4e77-89de-d9d16014bc74}
State: [5] Waiting for completion
Last error: Retryable error
Any guidance? Thanks.
Update: I've tried everything I can think of or find online. Reboot, defrag the volume, full chkdsk, delete existing snapshots. Neither SQL nor Exchange are installed on this system. These were clean OS installs, not upgrades. The correct OS partition is marked as Active. I don't see any relevant KBs available for R2. Doing a clean install of the host seems like a bad idea at this point, because what we're doing seems to be supported, and I'd like to get to the bottom. But I'm stuck. Is there additional logging info available from the Hyper-V VSS writer?
Log Name: Microsoft-Windows-Hyper-V-VMMS-Admin
Source: Microsoft-Windows-Hyper-V-VMMS
Date: 10/15/2009 11:50:29 AM
Event ID: 10111
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: JWSECURE-HV.jwstst.local
Description:
Failed to mount the virtual hard disk '\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1\VM\S08R2A\S08R2A.vhd' for virtual machine 'S08R2A' (Virtual machine ID E9660035-203C-4558-ABEC-10A36BCE47BF).
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>10111</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2009-10-15T18:50:29.431689100Z" />
<EventRecordID>103</EventRecordID>
<Correlation />
<Execution ProcessID="1348" ThreadID="1108" />
<Channel>Microsoft-Windows-Hyper-V-VMMS-Admin</Channel>
<Computer>JWSECURE-HV.jwstst.local</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>S08R2A</VmName>
<VmId>E9660035-203C-4558-ABEC-10A36BCE47BF</VmId>
<Parameter0>\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1\VM\S08R2A\S08R2A.vhd</Parameter0>
</VmlEventLog>
</UserData>
</Event>
Writer name: 'Microsoft Hyper-V VSS Writer'
Writer Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}
Writer Instance Id: {6f53836f-8893-4e77-89de-d9d16014bc74}
State: [5] Waiting for completion
Last error: Retryable error
Any guidance? Thanks.
Update: I've tried everything I can think of or find online. Reboot, defrag the volume, full chkdsk, delete existing snapshots. Neither SQL nor Exchange are installed on this system. These were clean OS installs, not upgrades. The correct OS partition is marked as Active. I don't see any relevant KBs available for R2. Doing a clean install of the host seems like a bad idea at this point, because what we're doing seems to be supported, and I'd like to get to the bottom. But I'm stuck. Is there additional logging info available from the Hyper-V VSS writer?
Log Name: Microsoft-Windows-Hyper-V-VMMS-Admin
Source: Microsoft-Windows-Hyper-V-VMMS
Date: 10/15/2009 11:50:29 AM
Event ID: 10111
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: JWSECURE-HV.jwstst.local
Description:
Failed to mount the virtual hard disk '\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1\VM\S08R2A\S08R2A.vhd' for virtual machine 'S08R2A' (Virtual machine ID E9660035-203C-4558-ABEC-10A36BCE47BF).
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>10111</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2009-10-15T18:50:29.431689100Z" />
<EventRecordID>103</EventRecordID>
<Correlation />
<Execution ProcessID="1348" ThreadID="1108" />
<Channel>Microsoft-Windows-Hyper-V-VMMS-Admin</Channel>
<Computer>JWSECURE-HV.jwstst.local</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>S08R2A</VmName>
<VmId>E9660035-203C-4558-ABEC-10A36BCE47BF</VmId>
<Parameter0>\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy1\VM\S08R2A\S08R2A.vhd</Parameter0>
</VmlEventLog>
</UserData>
</Event>
