Backup from snapshot jobs for NAS data protection policy fail with error 927

Explanation:

This issue occurs if the backup host pool does not contain a host that is of the same or lower version of NetBackup than the media server.

Workaround:

Ensure that all media servers associated with the storage unit, specified in the Storage Lifecycle Policy (SLP), have a higher version of NetBackup than the lowest version of the backup host in the backup host pool.

To exclude a media server, go to the storage unit properties for the STU specified in the SLP. Select the Only use the following media servers option. Then select the media servers with a NetBackup version higher or equal to the lowest NetBackup version of the hosts in the backup host pool.