1. The clustered volume (CSV) is not available or is offline in a failover cluster.2. Snapshot is not supported for disks in a scaled-out file server architecture.3. The VM configured for backup uses an SMB file share as storage, but the "File Server VSS Agent Service" role is not enabled.
1. Check the Connectivity of Clustered (CSV) Volumes:- Ensure that the clustered volume (CSV) is accessible and online. If it is offline, bring it online and try running the backup again.2. Enable "File Server VSS Agent Service" in SMB Server:a) Open Server Manager.b) Navigate to Dashboard -> Add Roles and Features -> Under Roles -> File and Storage Services -> File and iSCSI services.c) Select "File Server VSS Agent Service" and proceed with the installation.d) After the installation is completed, restart the server to apply the changes.