HP-UX HB v13.00 Ch-10 - Network Services

HP-UX Handbook – Rev 13.00 Page 14 (of 26)
Chapter 10 Network Services
October 29, 2013
behavior.
Performance discussions show how important it is to adjust NUM_NFSD=<number>, if the UDP
protocol is used for NFS communication.
It determines the number of nfsd processes, which handle UDP-NFS requests –the main factor
of all NFS related load today. The number should be greater than 4 times the number of available
CPUs; and if the system is an NFS client of itself, at least greater than 32.
PCNFS_SERVER=1
is only required if there are DOS or Windows clients, which use the special PCNFSD protocol.
You also need to maintain the /etc/exports (/etc/dfs/dfstab in HP-UX 11.31 and
above systems) file. This is the location to enter the file systems to be made available to NFS
clients.
The “exportfs –a” command triggers the rpc.mountd to read this file and make the file
systems accessible. The exportfs command going forward will be replaced by the showmount
command starting at HP-UX 11.31 (transitional support is still available for using the exportfs
command), when called without any option, shows what the mountd has currently exported (see
man pages). To show what the NFS server has exported use:
# exportfs –v
# share (HP-UX 11.31 and above)
As a NFS client to show file systems available from any NFS server use:
# showmount –e hostname
Warning: File systems managed by a Serviceguard package and available via NFS usually do
not appear in /etc/exports, because the package startup performs the export via the “exportfs
–i” command in its package startup script.