Network File system

• HP-UX 11i v1 and 11i v2 supports NFS v2 and v3.
• HP-UX 11i v3 supports NFS v2, v3 and v4.

Advantages of NFS v3

• Files of sizes up to 128GB
• Uses TCP versus UDP in v2
• Enhanced Performance
• AutoFS is supported versus automounter in v2

Advantages of NFS v4

• Enhanced Security
• Scalability
• Better cross platform interoperability
• Works better through firewall and on the internet

NFS v3 is still the default protocol for NFS in v3.

Some Important files to remember

• /etc/dfs/dfstab # Replaces /etc/exports file
• /etc/dfs/sharetab # Contains a list of shared resources
• /etc/rmtab # contains list of shared resources which are mounted by clients

AutoFS

Tips

NFS Stale File handle error

 # fuser -cu <mount_point>
 # /sbin/init.d/nfs.client stop
 # /sbin/init.d/nfs.server stop
 # /sbin/init.d/nfs.core stop
 # /sbin/init.d/nfs.client start
 # /sbin/init.d/nfs.server start
 # /sbin/init.d/nfs.core start