Date: Sat, 7 Feb 2004 16:12:58 +0100 From: Achim Patzner <ap@bnc.net> To: freebsd-performance@freebsd.org Subject: Re: Raid 5 performance Message-ID: <1CDE346A-5980-11D8-94F9-000A95A0BB90@bnc.net> In-Reply-To: <4024B259.8010005@geminix.org> References: <4025B3BE.3020009@qdsdirect.com> <4024B259.8010005@geminix.org>
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Am 07.02.2004 um 10:39 schrieb Uwe Doering: >> 1. FreeBSD has a 16k block size. The RAID card is set at 64k >> Block size(its sweet spot). > A RAID controller normally has nothing to do with the file system's > block size. Are you sure that you're not mixing this up with the > stripe size? He is. > Which stripe size to use with a RAID controller depends on your > performance priorities. I just (painfully) found out that at least for 3ware controllers the most important part of getting performance out of them is picking the right firmware... Right now we're back at "the more recent the better". Did anyone already try the 3ware SATA boards? Achim
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