Agent failed to process method {ReFs.SetFileIntegrity} with Veeam and Synology DSM 7.0

Here is a small tip regarding an issue I had following the upgrade of a Synology NAS to DSM 7.0. I’m using this NAS as a SMB repository for the backup of my home lab and following the upgrade all my backup failed with the following error : “Agent failed to process method {ReFs.SetFileIntegrity}”

To solve this issue I’ve added the following registry key to my Veeam server then restarted the services :

  • Path : HKLM\SOFTWARE\Veeam\Veeam Backup and Replication
  • Type : DWORD (32-bit) Value
  • Name : UseCifsVirtualSynthetic
  • Value : 0

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