Date: Wed, 12 Feb 2003 13:48:50 -0500 From: Bill Moran <wmoran@potentialtech.com> To: Heinrich Rebehn <rebehn@ant.uni-bremen.de> Cc: freebsd-questions@freebsd.org Subject: Re: fsck takes very long after crash/reset Message-ID: <3E4A9712.8030609@potentialtech.com> References: <3E4A5B77.5080103@ant.uni-bremen.de> <3E4A863E.2030801@potentialtech.com> <3E4A8EF5.1070308@ant.uni-bremen.de>
next in thread | previous in thread | raw e-mail | index | archive | help
Heinrich Rebehn wrote: > Bill Moran wrote: > >> Heinrich Rebehn wrote: >> >>> Hi list, >>> >>> I operate a FreeBSD server with a 300GB Raid. This morning i had to >>> hard reset it and when booting, fsck took some 20 minutes. >> >> I would expect that from 300G >> >>> Most partitions, especially the large ones are mounted with >>> soft-updates. >> >> Good. >> >>> Also, some weeks ago, we had missing files after a crash/fsck. >> >> Soft-updates will do that if the system crashes in the middle of >> writes. > > I have read several times that soft updates ensure that the fs is always > in a consistent state? As I understand it, it is consistent. It's just consistent with the way the filesystem was prior to those files being saved. > According to > murphy's law this happens when the system is needed most urgently. fsck > times of 20 minutes are not tolerable then. Yeah ... isn't Murphy's law a bitch. > This is the point where people talk about journalling fs, and i think > they're right. Did you search the archives as I suggested? There was a lot of useful information in some of the past discussions. > Running fsck in the background might help when 5.0 becomes stable. If it > really works, ok, otherwise i really think a journalling fs is needed. I think journalling is a good idea anyway. Although it's not the solution to every problem, journalling has some advantages that softupdates doesn't. It would be nice if both were available. Are you volunteering, because I seem to remember the conversation that nobody has had the time to port something like Reiser to FreeBSD yet. -- Bill Moran Potential Technologies http://www.potentialtech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3E4A9712.8030609>