Network file system considerations
The AdvancedDisk storage implementation presents all mounted file systems as disk volumes to NetBackup. This includes network file systems, such as NFS and CIFS. Like different types of SCSI and SAN presented disk volumes, network file system disk volumes should be placed in dedicated disk pools based on size as well as performance. Disk pools should not contain a mixture of locally presented and network presented disk volumes.
Observe the following guidelines when using network file systems:
Use manual mount points. Automatic mounting and dismounting can change mount points, which may cause disk resources to be unavailable.
The server that exports the mount points must be configured to allow root access to the file systems from the storage servers.
If the NFS volumes are presented to more than one storage server, the following conditions must apply for the file systems of the disk volumes:
Each media server must mount the file systems of all the disk volumes within a disk pool.
The mount points must be valid.
The mount points must be the same on each media server.
Some network file systems, such as NFS, implement a file system behavior that makes them unsafe for use in spanning situations.
Recommendation: Network file systems such as NFS should be configured to disable spanning.