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W2008R2 Windows Backup Error : Detailed error: ERROR – A Volume Shadow Copy Service operation error has occurred: (0x800423f0) [SOLVED]

This week I had an issue with one of the servers. Windows backup failed every time with these errors:

 

The backup operation stopped before completing.

A Volume Shadow Copy Service operation failed. Please check “VSS” and “SPP” application event logs for more information.

Detailed error: ERROR – A Volume Shadow Copy Service operation error has occurred: (0x800423f0)

The shadow-copy set only contains only a subset of the volumes needed to correctly backup the selected components of the writer.

 

First check out witch VSS writer has an error

In an elevated dos prompt : vssadmin list writers

 


In my case there was an issue with the Microsoft Hyper-V VSS Writer

 

Writer name: ‘Microsoft Hyper-V VSS Writer’

Writer Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}

Writer Instance Id: {53e73373-f579-49ba-b8ce-297c5cf9e32a}

State: [8]
Failed

Last error: Inconsistent shadow copy

 

Solution:

 

Restart all of the Hyper-V services

(in my case the current hyper-V session stayed online, but sometines restarting the services takes a session offline ! )

 

The VSS writer is in a stable state now

 

The backup is now completing.

 

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