Putting on my NFS hat... I would not recommend NFSv2 to anyone. Everyone
should be using NFSv3 at this point. It just does a much better job
at everything, including and most especially at writing.
TCP mounts are useful, and much safer, if you need to export NFS
across a firewall. Otherwise I'd recommend sticking with UDP.
-Matt
:On Tue, 20 Mar 2001, Jan Conrad wrote:
:
:> We're making plans to upgrade our NFS server to FreeBSD-4.3 (including
:> new disks...) and I would like to ask about the status of NFS v3?
:
:Why do you need NFSv3? Are there particular features in NFSv3 that you
:need or are you just guessing that v2 > v3 and therefore better?
:
:> Currently, a standard NFS mount (4.3BETA) gives us a sequential writing
:> speed of approx. 2Mb/s (just 400Mb dd'd data, IBM DTLA-307045 with
:> softupdates) and reading speed of 9Mb/s (the maximum).
:
:What is the speed of your network?
:
:> Mounting via TCP gives us 2.5Mb/s. (Is this safe?)
:
:Why are you using TCP? If you are on a reliable LAN, use UDP. TCP should
:be used for long haul NFS. There are lots of reasons for using UDP, if you
:want me to go into them, I will.
:
:> Are there any other possibilities to increase the writing speed (by means
:> of tuning NFS...)?
:
:Again, try UDP. Also, go pick up the O'Reilly book on NFS and NIS. Alot of
:what I'm going to tell you is in there (indeed the book is on my desk at
:work).
:
:-gordon
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