Date: Sun, 16 May 1999 19:17:17 -0500 (CDT) From: Craig Johnston <caj@lfn.org> To: freebsd-hackers@freebsd.org Subject: Re: fsck and large file systems Message-ID: <Pine.GSO.3.96.990516191224.29225A-100000@jane.lfn.org> In-Reply-To: <199905162317.QAA75741@bubba.whistle.com>
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On Sun, 16 May 1999, Archie Cobbs wrote: > Alex Le Heux writes: > > Maybe I'm completely wrong here, but didn't I read somewhere that with > > softupdates it would theoretically be possible to boot the system before > > the fsck and fsck while it's running? > > Yes.. if you make the assumptions that: > > 1. There are no bugs in the soft updates code > 2. Your disk always writes its blocks atomically > > Then it follows that the only disk inconsistencies that are possible > during any boot-up are minor ones (eg, bitmap entry showing an allocated > block that's not pointed to by anything) that can be fixed by a background > daemon running at its leisure. As a consequence of doing this, your may > have free, but temporarily unavailable, disk blocks for a while until > the daemon finishes. Can we assume that the above is a goal we're aiming for at some point in the foreseeable future? That'd be real sweet. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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