Date: Tue, 26 Mar 2002 13:50:45 -0700 From: "Kenneth D. Merry" <ken@kdm.org> To: David Miller <dmiller@sparks.net> Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: RAID: Adaptec vs Mylex Message-ID: <20020326135045.A4301@panzer.kdm.org> In-Reply-To: <Pine.BSF.4.21.0203261518160.67145-100000@search.sparks.net>; from dmiller@sparks.net on Tue, Mar 26, 2002 at 03:30:56PM -0500 References: <Pine.BSF.4.21.0203261518160.67145-100000@search.sparks.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Mar 26, 2002 at 15:30:56 -0500, David Miller wrote: > Any input from real world users on the subject? I'm most interested in > the 3210S and 352. My use would be with RAID 10 support of a busy > database server doing zillions of writes/updates. Speed writing small > blocks is of the essence. > > Reliability, robustness, speed are critical factors. It will be hooked up > to 10 or 12 15K drives. > > Input? If you want a comparison of the two controllers: http://www.adaptec.com/worldwide/product/markeditorial.html?prodkey=3210_wp&type=Common&cat=%2fCommon%2fRAID+Upgrade The only catch is that the comparison was done with RAID-5, not RAID-10. So the read speed in the benchmarks above may be comparable to RAID-10, but the write speed for RAID-10 should be better. If you want high performance with lots of small chunks of data, I would recommend the Adaptec 5400S. It has a hardware parity engine that speeds up RAID-5 writes significantly. (If you're only doing RAID-10, though, it won't have any effect.) (disclaimer: I work for Adaptec.) Ken -- Kenneth Merry ken@kdm.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020326135045.A4301>