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- Xref: sparky comp.protocols.nfs:2276 comp.protocols.tcp-ip:4356
- Path: sparky!uunet!gatech!purdue!yuma!csn!news.den.mmc.com!pgl-devsvr.den.mmc.com!jzwiebel
- From: jzwiebel@pgl-devsvr.den.mmc.com (John Zwiebel (303)977-1480)
- Newsgroups: comp.protocols.nfs,comp.protocols.tcp-ip
- Subject: Re: NFS Over Satellite Link
- Message-ID: <1992Sep9.152948.17119@den.mmc.com>
- Date: 9 Sep 92 15:29:48 GMT
- References: <1992Sep9.121006.14055@udel.edu>
- Sender: news@den.mmc.com (News)
- Organization: PAGE @ Martin-Marietta
- Lines: 14
-
- In article <1992Sep9.121006.14055@udel.edu>, pahountis@ncf.al.alcoa.com (Julia Pahountis) writes:
- |> Has anyone, or do you know of anyone, who has done NFS over a satellite link? (Can it be done?)
-
- Haven't done it but I think the turn around time to a geostationary satellite
- would be a major problem since its up there at 24,000 miles. Multiply that
- times 4 to include all your links and you start approaching the RPC time out.
- You'd have to increase the number of biods on the clients and nfsd on the
- servers to increase "window" size (the number of outstanding nfs requests)
- and have to increase the default timeout for retransmission to avoid too many
- repeat requests on your links. Both of these cause a decrease in NFS
- performance on a "normal" NFS path. (Too many nfsd waste CPU cycles on the
- server, too many biods does the same thing on the client)
-
- John Zwiebel
-