Date: Mon, 11 Jul 2005 18:44:50 +0100 From: Richard Tector <richardtector@thekeelecentre.com> To: Martin Cracauer <cracauer@cons.org> Cc: freebsd-current@freebsd.org Subject: Re: gvinum. A little worse than I thought :-) Message-ID: <42D2B012.9040208@thekeelecentre.com> In-Reply-To: <20050711131915.A19863@cons.org> References: <20050711131915.A19863@cons.org>
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Martin Cracauer wrote: >What is a recommended ATA or SATA controller with hardware RAID5 and >the capability to run different RAID levels on different parts of the >disk these days? > >Martin > > I've had good results with both Areca 8 and 16 port cards (arcmsr driver) on -CURRENT and a couple of Adaptec 2410s on 5.x (aac driver). All SATA, though the Areca did seem to perform quite a bit better (+15-20MB/s on writes) during a bunch of quick dd tests I did using a month old -CURRENT. I haven't used any 3ware cards myself but I've heard good things. With the Adaptec's it's fairly trivial to run say 2 seperate Raid5 sets across the disks or mirror 4 the first 5GB of each of 4 disks and use the rest of the space in RAID5, etc. I haven't tried this with the Areca's but brielfy looking at the documentation it seems possible. I hope that's of some help. Regards, Richard Tector
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