NFS Performance Tuning for HP-UX 11.0 and 11i Systems

nfs performance tuning for hp-ux 11.0 and 11i systems page 30

Notes:

Page 30July 22, 2002

user-space daemons

and kernel threads

• biod

• nfsd

• rpc.mountd

• rpc.lockd & rpc.statd

NFS is a true “client-server” application, yet most of the tuning and troubleshooting

information currently available (i.e. white papers, web pages, etc.) pertains only to

NFS servers. There are many components of NFS that are specific to the client,

and some administrators tend to forget that without a well-tuned client it doesn’t

really matter how fast your server is – you’ll still end up with poor NFS

performance.

In order to obtain optimal NFS performance, both the client and the server should

be sized and tuned appropriately for an application’s needs. This involves making

sure that both biods (client) and nfsds (server) are considered. The rpc.mountd

daemon, which runs on the server only, has specific environmental considerations

that should be verified. The rpc.lockd and rpc.statd daemons run on both clients

and servers, so both systems should be configured properly to run these daemons

effectively.