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From: gengenba@forwiss.uni-passau.de (Michael Gengenbach)
Newsgroups: comp.sys.dec
Subject: optimal number of nfsd on a DECsystem 5810?
Message-ID: <1990Sep24.215836.2081@forwiss.uni-passau.de>
Date: 24 Sep 90 21:58:36 GMT
Sender: usenet@forwiss.uni-passau.de (USENET News System)
Organization: University of Passau, W-Germany
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Hi,

we have a DECsystem 5810 with one KDB 50 and 3 RA90 disks. As I understand
it, the disks are not very fast and the good I/O-performance comes from
optimizing the sequence of disk-access.

Now we are using the DECsystem as a NFS-server with 4 nfsd and it doesn't
show a good performance. We get a short 'NFS server not responding' on
the clients very often. Is this because we have only 4 nfsd and the 
controller can't optimize with so few pending I/O?

So what number of nfsd would you recommend (I think too much would be
a problem due to too much context-switches)?

Thank you

   Michael
--
Michael Gengenbach   \/\/\/\/\/  gengenbach@forwiss.uni-passau.de
FORWISS               \/\/\/\/
University of Passau  /\/\/\/\   Phone: +49 851/509-496
West Germany         /\/\/\/\/\  Fax  : +49 851/509-497