large NFS server tuning

From: Steve VanDevender <stevev_at_hexadecimal.uoregon.edu>
Date: Tue, 22 Oct 1996 16:05:07 -0700 (PDT)

We have an AlphaServer 1000A with an HSZ raid array that we use as an
NFS server for home directories for a large Solaris system (around 3000
total accounts with 100-200 active users during the day) and four
satellite AlphaStation 500 systems used for compute-intensive jobs (each
with many fewer users than the Solaris system). We have noticed
frequent pauses in file accesses for filesystems that are served from
the AlphaServer system.

All of the filesystems on the AlphaServer system are UFS, and the
AlphaServer has 128M of RAM. My suspicion is that because of this the
3% bufcache setting may be much too low to allow for useful caching (3%
of 128M is only about 4M of cache).

If anyone has any tuning hints for a large dedicated NFS server of this
sort, I'd be interested in them.
Received on Wed Oct 23 1996 - 01:22:46 NZDT

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