From owner-freebsd-hackers Wed Feb 21 1:53:10 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from cast-ext.ab.videon.ca (cast-ext.ab.videon.ca [206.75.216.34]) by hub.freebsd.org (Postfix) with SMTP id A551A37B491 for ; Wed, 21 Feb 2001 01:53:05 -0800 (PST) (envelope-from L.Brockman@videon.ca) Received: (qmail 1549 invoked from network); 21 Feb 2001 09:53:04 -0000 Received: from unknown (HELO videdmexg1.ab.videon.ca) ([24.108.62.15]) (envelope-sender ) by cast-ext.ab.videon.ca (qmail-ldap-1.03) with SMTP for ; 21 Feb 2001 09:53:04 -0000 Received: by videdmexg1.ab.videon.ca with Internet Mail Service (5.5.2650.21) id <17QQH3V9>; Wed, 21 Feb 2001 02:55:26 -0700 Message-ID: From: Laurence Brockman To: freebsd-hackers@FreeBSD.ORG Subject: RE: qmail IO--qmail vs postfix competition Date: Wed, 21 Feb 2001 02:55:18 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I'd be interested in the URL :) Thanks, Laurence -- Laurence Brockman Unix Administrator Videon Cablesystems Alberta Inc 10450-178 St. Edmonton, AB T5S 1S2 l.brockman@videon.ca (780) 486-6527 -----Original Message----- From: scanner@jurai.net [mailto:scanner@jurai.net] Sent: Tuesday, February 20, 2001 5:28 PM To: Gordon Tetlow Cc: Dan Phoenix; Jesper Skriver; freebsd-hackers@FreeBSD.ORG Subject: Re: qmail IO--qmail vs postfix competition On Tue, 20 Feb 2001, Gordon Tetlow wrote: > Forgot to add info about the mailers. Each has a hardware raid controller > with about 32MB of memory on the controller configured to RAID-1 2HDs for > redundancy. Ideally, the mail never actually hits the disk but resides > exclusively in memory. Aha. That explains it. You use HW raid. I wondered why you were only doing 4 million mails for *30* boxes. Dan, is doing 500K, on a completely idle box (cpu/ram/I/O wise), with vinum, Postfix, and RAID-0. Have you seen brad knowles papers on vinum vs HW raid? It's erm enlightening to say the least :) Id be happy to dig up the URL if you are interested. I personally will be using Vinum from now on. The performance is very impressive. ============================================================================ = -Chris Watson (316) 326-3862 | FreeBSD Consultant, FreeBSD Geek Work: scanner@jurai.net | Open Systems Inc., Wellington, Kansas Home: scanner@deceptively.shady.org | http://open-systems.net ============================================================================ = WINDOWS: "Where do you want to go today?" LINUX: "Where do you want to go tommorow?" BSD: "Are you guys coming or what?" ============================================================================ = irc.openprojects.net #FreeBSD -Join the revolution! ICQ: 20016186 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message