From: Mark Andrews (marka@calibredigital.com)
Date: Thu Feb 12 2004 - 08:54:37 EST
A bit of background on this problem. We've got two sparc Solaris 9
Sunfire V480Rs
in a Veritas cluster with the cluster managed by VCS. The cluster offers
nfs services
to a large number of workstations. When i benchmarked the i/o speeds to
the cluster,
i found that the read bandwidth was high, while the write bandwidth was
atrocious.
Turns out the problem was a veritas limitation caused by the number of
nfsd processes
that VCS launches. VCS starts only 16 nfsd processes, irrelevant of the
value of
NFSD_SERVERS in /etc/default/nfs.
Took us awhile to find that one.
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