About truncating logs with a VMware backup that protects SQL Server
The following requirements exist if you want to truncate logs with a VMware backup that protects SQL Server:
To create a full backup, you must install the Veritas VSS provider. The VMware VSS provider creates copy-only backups, which cannot be used as a basis to truncate logs.
See Installing the Veritas VSS provider for vSphere (NetBackup for SQL).
For SQL Server 2012 and later, the account that runs the Microsoft SQL Server Service must have full permissions for the NetBackup Legacy Network Service
tempdirectory. This directory isC:\Users\user\AppData\Local\Temp. User is the account that runs the NetBackup Legacy Network Service.To truncate logs, you must first perform a full VMware backup without log truncation. Without this initial full backup, the ASC job fails. When this backup is complete, then enable log truncation in the policy.