About the All media server pool option
You can use the option, while selecting a backup host pool for the D-NAS data protection policies. This option selects all the supported media servers that are configured on the primary server and available at run time.
Note:
The All media server pool option does not include the primary servers that are also configured as a media server.
This option is present for both NFS and SMB protocols. You can use it for D-NAS policy jobs like snapshot and backup from snapshot. These jobs need a host from the backup host pool.
When you select this option in the policy, NetBackup creates a backup host pool named All_Media_Server_Pool. So, if you already have an existing backup host pool by that name, delete or rename the existing pool.
During run time, if NetBackup cannot find any suitable media server(s) to run the job, you can see an error with code 930. See Error code: 930: No supported media server is available in the All_Media_Server_Pool to use to backup the NAS shares. .
You do not need to create and frequently update the member hosts of the backup host pool after you add a new media server.
No need to create separate backup host pools for NFS and SMB volumes. However, NetBackup still uses Linux media servers to back up NFS volumes. It uses Windows media servers to back up SMB volumes.