From owner-freebsd-questions Mon Jun 25 21:48:18 2001 Delivered-To: freebsd-questions@freebsd.org Received: from fedde.littleton.co.us (cfedde.dsl.frii.net [216.17.139.141]) by hub.freebsd.org (Postfix) with ESMTP id 2149637B405 for ; Mon, 25 Jun 2001 21:48:14 -0700 (PDT) (envelope-from cfedde@fedde.littleton.co.us) Received: from fedde.littleton.co.us (localhost [127.0.0.1]) by fedde.littleton.co.us (8.11.4/8.11.2) with ESMTP id f5Q4m5O24533; Mon, 25 Jun 2001 22:48:05 -0600 (MDT) Message-Id: <200106260448.f5Q4m5O24533@fedde.littleton.co.us> To: Andrew Reid Cc: freebsd-questions@FreeBSD.ORG Subject: Re: FreeBSD and surviving unclean shutdowns In-Reply-To: <993521648.1058.8.camel@percible.alfred.cx> From: Chris Fedde Date: Mon, 25 Jun 2001 22:48:04 -0600 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 26 Jun 2001 11:44:08 +0930 Andrew Reid wrote: +------------------ | While I am resurecting one of my mail servers (which is currently | running Linux) the thought crossed my mind "How would FreeBSD cope with | this situation?" | | This server is running Software-RAID on a (patched for RAID) 2.2 kernel, | and last night, the power went out for about three hours. My UPS only | lasted for 2 of them. | | How does FreeBSD cope with these sort of things? My Cache server took | about an hour-and-a-half of fsck.ext2'ing to come back to a useable | state. | | My primary mail server, as I said is still in pieces and being | resurected now. I've been contemplating bringing the mail over to | FreeBSD, but haven't as yet as I've still got to port some PAM stuff | that we wrote for Linux. | | Can someone please comment on this? +------------------ FreeBSD with softupdates turned on will usually recover well from a crash. Also on highly available critical systems I would not choose to run software raid. Better to have hardware raid running 0+1 if you need it or just buy big disks. With sendmail you can run multiqueue with symbolic links to "subqueues" on each disk. Also as you know now it might be a good idea to invest in a sensaphone or some otherway of having your machine room tell you it is breaking BTW I didn't realize that christmas island was 9.5 hours east. -- Chris Fedde To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message