VSS Timeout when backing up Exchange VM - Veeam Software
https://www.veeam.com/kb168028.09.2012 · VSS will only hold a freeze on the writers for up to 60 seconds (20 for Exchange), so several steps must fit within this timeframe: Verification of freeze state 1. Snapshot creation request via VIM API 2. Snapshot creation on the ESXi host. Return of snapshot information via VIM API 2. Thaw request to Microsoft VSS 1. Thawing of VSS writers’ I/O.
VSS errors related to NTDS writer failures - Veeam Software
https://www.veeam.com/kb169703.12.2012 · As these errors are related to the Microsoft VSS subsystem, a reboot often is the fastest way to alleviate any issue which may be occurring at the OS level. Disabling the anti-virus temporarily can help isolate whether the issue is related to interference from the anti-virus. Disable\uninstall the anti-virus fully and run the Veeam job.
Update to Microsoft Azure AD Connect causes SQL VSS issues
https://www.veeam.com/kb232631.07.2017 · One of them is an update of the Microsoft Azure AD Connect client. If you recently installed this update, the repair of the SQL installation should fix the issue. If you didn’t, still try the below since it might also resolve other issues. Go to Add/Remove Programs. Select Microsoft SQL Server 2012 Express LocalDB (or your actual SQL version)
Backup job fails with a SQL VSS Writer error ... - Veeam Software
www.veeam.com › kb2798Nov 26, 2018 · If you have an ACT! Software installed Veeam Agent for Microsoft Windows job or Veeam Backup & Replication job with Application-aware processing fails with the following: Failed to create snapshot. Error code -2147212300. 'Backup job failed. Cannot create a shadow copy of the volumes containing writer's data. A VSS critical writer has failed.