Thursday 7 March 2019

System protected files failed to backup

Recently, the backup software failed to capture the system protected files on a windows machine. Commvault error code was  Error Code: [6:64]

Upon investigation, it was found the VSS writer 'system writer' was missing on the server.

Here is more details about the system writer.
https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/cc734021(v=ws.10)


This error is explained in detail on the following page
https://blogs.technet.microsoft.com/supportingwindows/2013/08/27/missing-system-writer-case-explained/


In my case, I checked the total number of files and folders on the following path and reduced it to under 10,000.
  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\
  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\
  • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\
  • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\ 

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