Date: Tue, 19 Apr 2005 07:25:12 -0500 From: Eric Anderson <anderson@centtech.com> To: Claus Guttesen <kometen@gmail.com> Cc: freebsd-performance@freebsd.org Subject: Re: some simple nfs-benchmarks on 5.4 RC2 Message-ID: <4264F8A8.3080405@centtech.com> In-Reply-To: <b41c75520504190455542071f7@mail.gmail.com> References: <b41c75520504190418308f94cc@mail.gmail.com> <4264EC60.3020600@centtech.com> <b41c75520504190443187617de@mail.gmail.com> <4264EF40.3060900@centtech.com> <b41c75520504190455542071f7@mail.gmail.com>
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Claus Guttesen wrote: >>When you say 'ide->fiber' that could mean a lot of things. Is this a single >>drive, or a RAID subsystem? > > > Yes, I do read it different now ;-) > > It's a raid 5 with 12 400 GB drives split into two volumes (where I > performed the test on one of them). What does gstat look like on the server when you are doing this? Also - does a dd locally on the server give the same results? You should get about double that I would estimate locally direct to disk. What about a dd over NFS? What is the server spending its time doing? (top?) If you are looking for the best performance, you might try a RAID 0+1 (or 10 possibly) instead of RAID 5. Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology A lost ounce of gold may be found, a lost moment of time never. ------------------------------------------------------------------------
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