From owner-freebsd-hackers Sat Jul 13 04:57:52 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id EAA07214 for hackers-outgoing; Sat, 13 Jul 1996 04:57:52 -0700 (PDT) Received: from al.imforei.apana.org.au (al.imforei.apana.org.au [202.12.89.41]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id EAA07204 for ; Sat, 13 Jul 1996 04:57:38 -0700 (PDT) Received: (from pjchilds@localhost) by al.imforei.apana.org.au (8.7.5/8.7.3) id VAA03779; Sat, 13 Jul 1996 21:26:40 +0930 (CST) Date: Sat, 13 Jul 1996 21:26:40 +0930 (CST) From: Peter Childs Message-Id: <199607131156.VAA03779@al.imforei.apana.org.au> To: pst@shockwave.com, freebsd-hackers@freebsd.org Subject: Re: using ccd for striping? X-Newsreader: TIN [version 1.2 PL2] Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk In article <199607130753.AAA00326@precipice.shockwave.com> you wrote: : Is anyone using the ccd driver in striping mode? I'd like to hear about : other people's good/bad experiences before trying it out myself. I have a couple of really old clunky 330mb SCSI drives, that can only push about 1mb sec reads, 0.8mb sec writes... put together and striped the ccd device does a good 1.6mb/s reads/1.4mb/s writes... (figures are done with iozone in non-optimal conditions...) I'd say that with a couple of decent newish drives you'd get quite good performance... i'm using my ccd device for a newspool and a web cache (so it doesn't matter if i loose it :) Peter -- Peter Childs --- http://www.imforei.apana.org.au/~pjchilds The internet is full, please try again in half an hour...