From owner-freebsd-questions@FreeBSD.ORG Tue Mar 14 05:03:30 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BE94716A420 for ; Tue, 14 Mar 2006 05:03:30 +0000 (UTC) (envelope-from micahjon@ywave.com) Received: from relay0.av-mx.com (relay0.av-mx.com [137.118.16.125]) by mx1.FreeBSD.org (Postfix) with ESMTP id E7FE843D8F for ; Tue, 14 Mar 2006 05:02:57 +0000 (GMT) (envelope-from micahjon@ywave.com) X-Virus-Scan-Time: 0 Received: from [137.118.16.61] (HELO mx0.av-mx.com) by relay0.av-mx.com (CommuniGate Pro SMTP 4.2.10) with SMTP id 200051768 for freebsd-questions@freebsd.org; Tue, 14 Mar 2006 00:02:57 -0500 Received: (qmail 26542 invoked from network); 14 Mar 2006 05:02:56 -0000 Received: from dsl13061.ywave.com (HELO ?192.168.1.65?) (micahjon@ywave.com@66.243.212.61) by 0 with SMTP; 14 Mar 2006 05:02:56 -0000 X-CLIENT-IP: 66.243.212.61 X-CLIENT-HOST: dsl13061.ywave.com Message-ID: <44164E7F.9090106@ywave.com> Date: Mon, 13 Mar 2006 21:02:55 -0800 From: Micah User-Agent: Thunderbird 1.5 (X11/20060113) MIME-Version: 1.0 To: "Tamouh H." References: <20060314044240.C6F8543D46@mx1.FreeBSD.org> In-Reply-To: <20060314044240.C6F8543D46@mx1.FreeBSD.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: how does a system come up if you disable background fsck ? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Mar 2006 05:03:30 -0000 Tamouh H. wrote: > >> Ensel Sharon wrote: >>> I have disabled background fsck in my /etc/rc.conf with: >>> >>> background_fsck="no" >>> >>> But I am curious - what does this mean for the system if the system >>> crashes ? >>> >>> Does this mean that the system will wait for all non root >> partitions >>> to fully fsck before coming up into multi-user mode ? >>> >>> OR >>> >>> Does it mean the system will boot up quickly into >> multi-user mode, but >>> the non-root partitions will just not be mounted and/or >> usable until I >>> fsck them by hand ? >>> >>> thanks. >> The former, as I can say with ample experience this morning. >> (stupid USB >> panic) >> >> HTH, >> Micah > > I find both ways useless. If fsck background starts after a crash it literally slows down the machine to a halt rendering it unusable. > > If enable fsck to check the system prior to mounting device, it will take at least 15-30 minutes for it to complete (in the event of a hard crash). Which also translates to a downtime. > > disabling fsck on the long run is a bad choice too as eventually the system files will become corrupt beyond repair. > > What is the solution here ? > > Thx, > > Tamouh If you can't acceptably absorb a 30 minute down time, then why are you running without backup power? - Micah