Date: Wed, 7 Feb 2001 15:30:05 -0800 (PST) From: Dan Phoenix <dphoenix@bravenet.com> To: Alfred Perlstein <bright@wintelcom.net> Cc: Matt Dillon <dillon@earth.backplane.com>, freebsd-hackers@FreeBSD.ORG Subject: Re: vinum and qmail (RE: qmail IO problems) Message-ID: <Pine.BSO.4.21.0102071529420.29215-100000@gandalf.bravenet.com> In-Reply-To: <20010207150843.R26076@fw.wintelcom.net>
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Sounds reasonable...do you have a url to a trustable supplier? On Wed, 7 Feb 2001, Alfred Perlstein wrote: > Date: Wed, 7 Feb 2001 15:08:43 -0800 > From: Alfred Perlstein <bright@wintelcom.net> > To: Dan Phoenix <dphoenix@bravenet.com> > Cc: Matt Dillon <dillon@earth.backplane.com>, freebsd-hackers@FreeBSD.ORG > Subject: Re: vinum and qmail (RE: qmail IO problems) > > * Dan Phoenix <dphoenix@bravenet.com> [010207 13:42] wrote: > > > > > > Yes maxusers stopped the dmesg errors....it seemed. Only thing I do not > > like to much about postfix is that it only tries one MX record and then > > does not try any others...."default"....yes there is still backlog with > > #'s I gave you. Right now 8 min to get an email from sending... > > I don't think Matt means 'backlog' as in latency, I think he means > backlog as in your backup MX's queing mail for you while you rebooted > and installed FreeBSD. > > If you have that much mail _incoming_ then every time you sneeze > and stop processing the queue even for a few seconds you can suddenly > wind up with a massive amount of inocming mail the second your > server comes online again. This will swamp you and knock the box > over. > > > > :ps. 600 megs of email was calculated in 1 day on this machine...today i > > > :will be splitting up the load and looking into vinum. > > Get a hardware raid card, you can even get a bootable IDE RAID, > although hotswap scsi means less downtime. > > For a project this big you're really being pretty thrifty with the > hardware allocated to it. The time you save hacking on the system > to fix performance problems could be addressed much quicker by > buying somewhat more robust hardware, once that's addressed you > can move on to the next project. > > IDE raid (striping) won't cost more than three to five hundred > dollars including the disks you need. > > -- > -Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org] > "I have the heart of a child; I keep it in a jar on my desk." > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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