Date: Wed, 20 Apr 2005 22:28:11 +0200 From: Claus Guttesen <kometen@gmail.com> To: Eric Anderson <anderson@centtech.com> Cc: freebsd-performance@freebsd.org Subject: Re: some simple nfs-benchmarks on 5.4 RC2 Message-ID: <b41c7552050420132821eb32e8@mail.gmail.com> In-Reply-To: <42666371.9080800@centtech.com> References: <b41c75520504190418308f94cc@mail.gmail.com> <b41c755205041906145fc4719c@mail.gmail.com> <426507DC.50409@centtech.com> <b41c7552050419065519057cb2@mail.gmail.com> <42650EB2.4040409@centtech.com> <b41c75520504200117608f8e31@mail.gmail.com> <b41c7552050420014730ae39e1@mail.gmail.com> <426642D4.8000202@centtech.com> <b41c7552050420070350db3315@mail.gmail.com> <42666371.9080800@centtech.com>
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> You could use the atabeast to do two raid 5's, then use vinum to stripe t= hose two. I actually thought of that a while ago (unrelated to this). I read the vinum-page in the handbook, assume this is still valid. I recall a discussion regarding it's (re)naming to gvinum, but don't see any mention of it so gvinum is no longer used I guess. Are there any performance-issues doing striping by FreeBSD. I actually have two unused LUN's, each with two 2 TB volumes, so I can stripe the first volume in the first LUN with the first volume in the second LUN and the second volume etc. so I distribute the load on as many disks as possible. As far as I know a vinum-volume don't have the same 2 TB sizelimitation as disklabel and newfs has, but will I be able to newfs? The handbook refers to newfs -v when making a new fs, but I can't find -v in man newfs, man 8 vinum says: Just run newfs(8). Use the -v option to state that the device is not divided into partitions... The example uses the -U (enable softupdates) parameter instead: # newfs -U /dev/vinum/mirror regards Claus
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