Path: utzoo!attcan!uunet!datapg!com50!com2serv!craig
From: craig@com2serv.C2S.MN.ORG (Craig S. Wilson)
Newsgroups: comp.protocols.nfs
Subject: Re: IO Errors with Sun PC-NFS
Keywords: PC-NFS
Message-ID: <2701@com50.C2S.MN.ORG>
Date: 27 Sep 89 12:06:17 GMT
References: <309@massey.ac.nz>
Sender: usenet@com50.C2S.MN.ORG
Reply-To: craig@com2serv.c2s.mn.org (Craig S. Wilson)
Organization: Com Squared Systems, Mendota Heights, MN
Lines: 42

In article <309@massey.ac.nz> GEustace@massey.ac.nz (Glen Eustace) writes:
>We have a network comprising mainly of PCs and MacIntoshs. These machines
>are currently being served from a Pyramid 9815 via NFS and AUFS(CAP).
>Firstly let me detail our environment, and then ask my questions.
>
>2.	Various PC-AT, and Turbo-XT clones. PC-DOS 3.1 and MS-DOS 3.3.
>	Western Digital 8003E Ethernet cards.
>
>4.	Network load is typically 8-10% measured with a Tektronics TDR and
>	the 'traffic' program on the Sun.
>
>Problems:
>
>1.	PC-NFS Telnet. Using the telnet program that is supplied as part of
>	the PC-NFS product is becoming increasingly difficult as it tends to
>	pause in the middle of output quite frequently. Sometimes the
>	pause can be as long as 30 sec but typically is about 5 secs.
>
>  Glen Eustace, Software Manager, Computer Centre, Massey University,

I have twenty-some pc's on a thin net with a Sun 3/260 as the main
server.  I have experienced the delay described above and have in the
past chalked it up to my configuration.  I use the 3Com 3C501 cards,
which have no on board intelligence.  I have found that even when I am
the only user on the network, I get a number of delays.  In fact, it
seems to be worse, when there are fewer users.  I figure that my pc
can't keep up with the message rate and throws some messages away.

Am I close?  I can't say that I have investigated this phenomenon too
closely.  If I had an ethernet controller with onboard intelligence,
would I have the same problems?  Is anyone aware of a PC-NFS driver
for the Excelan 205T controller?  I have about five laying around I
would like to put to use.

Any help on these questions is greatly appreciated.

/craig

Craig S. Wilson           |    Democracy      |{amdahl|hpda}!bungia!com50!craig
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