From owner-freebsd-hackers Thu Feb 8 4:18: 4 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from urban.iinet.net.au (urban.iinet.net.au [203.59.24.231]) by hub.freebsd.org (Postfix) with ESMTP id 815A737B491 for ; Thu, 8 Feb 2001 04:17:45 -0800 (PST) Received: from elischer.org (reggae-02-154.nv.iinet.net.au [203.59.91.154]) by urban.iinet.net.au (8.8.7/8.8.7) with ESMTP id UAA01324; Thu, 8 Feb 2001 20:16:29 +0800 Message-ID: <3A828E13.85E60B98@elischer.org> Date: Thu, 08 Feb 2001 04:16:19 -0800 From: Julian Elischer X-Mailer: Mozilla 4.7 [en] (X11; U; FreeBSD 5.0-CURRENT i386) X-Accept-Language: en, hu MIME-Version: 1.0 To: Dan Phoenix Cc: Matt Dillon , Andrew Reilly , Alfred Perlstein , Andre Oppermann , Rik van Riel , Mike Silbersack , Poul-Henning Kamp , Charles Randall , Jos Backus , freebsd-hackers@FreeBSD.ORG Subject: Re: vinum and qmail (RE: qmail IO problems) References: Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Dan Phoenix wrote: > > Yes I did and it made some real differences. I enabled it on /usr as well > as /var and mounted /var with the noatime option. Doing not bad for the > amount of email it is pushing....thing is this I/O problem never use to be > an issue....but with growth constantly happening it has come to a hardware > based solution. What I have recommended to the company is a scsi card in > that machine with 2 scsi drives.....I will raid 0 then together with ccd > or venim and mount it as /var....turn existing /var into extra swap > space.....although i may thing of something else...as I don;t think it > needs a gig of swap... and that should fix the I/O issue incredibly. > Right now I have split up the load also between2 machines so that has > helped out incredibly....but systat -vmstat is still always showing 100% > disk usage so I will have to remedy the problem. Then I plan on moving all > mail back to that one machine and beating the shit right out of that > freebsd machine to see what freebsd can really handle. If anyone has some > nice newbie docs :) on ccd or venim would be greatly appreciated. Don't forget to put logging and other such things on a separate drive.. even a small 1G drive as a secondary will be ok, as long as it has soft updates and doesn't share heads with the work area.. vmstat 1 and iostat 1 output would be intersting. -- __--_|\ Julian Elischer / \ julian@elischer.org ( OZ ) World tour 2000-2001 ---> X_.---._/ v To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message