From: Andrew Ryan Subject: Re: Client tuning Date: Wed, 11 Dec 2002 16:10:20 -0800 (PST) Sender: nfs-admin@lists.sourceforge.net Message-ID: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: nfs@lists.sourceforge.net Return-path: Received: from a.smtp-out.sonic.net ([208.201.224.38]) by sc8-sf-list1.sourceforge.net with smtp (Exim 3.31-VA-mm2 #1 (Debian)) id 18MHrq-0007hn-00 for ; Wed, 11 Dec 2002 17:10:22 -0800 To: Jose Celestino Errors-To: nfs-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Id: Discussion of NFS under Linux development, interoperability, and testing. List-Unsubscribe: , List-Archive: Jose Celestino wrote: > > I have the option of choosing between NFSv2/v3 and TCP/UDP and the > freedom to fully configure/reconfigure the client boxes. Any thoughs on > what I might tweak and look for? Any experiences on this? > First off I would recommend subscribing to and staying subscribed to this list. If you use linux NFS (as client and/or server) then this list will be invaluable. The UDP/TCP question should probably be in the FAQ, as it has come up many times before on the list. If you have a mismatch in network speeds (e.g. 1000BaseT on server and 100BaseT on client) TCP will give you better speeds. However, UDP support has been more historically reliable in the linux kernel, and more widely used. I wouldn't recommend using TCP NFS client before 2.4.20, out of the box, 2.4.20 is stable for me so far. You can try tweaking mount(8) parameters, kernel patches (applying various patches from Trond's site, at http://www.fys.uio.no/~trondmy/src), and even vendor kernel RPM's (most vendors include some subset of Trond's patches). But, mostly you will need to run tests with your own setup to determine what is the most stable and best-performing combination of kernel and mount parameters. And if you find bugs, report them to the list so they can be fixed in future versions. cheers, andrew ------------------------------------------------------- This sf.net email is sponsored by: With Great Power, Comes Great Responsibility Learn to use your power at OSDN's High Performance Computing Channel http://hpc.devchannel.org/ _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs