Date: Fri, 10 May 2002 12:31:37 -0500 From: Mike Meyer <mwm-dated-1021483897.a81af7@mired.org> To: Rahul Siddharthan <rsidd@online.fr> Cc: chat@freebsd.org Subject: Re: My horror story Message-ID: <15580.1017.276905.556906@guru.mired.org> In-Reply-To: <20020510140222.M57329@lpt.ens.fr> References: <000701c1f804$47d5dc00$6401a8c0@penguin> <20020510140222.M57329@lpt.ens.fr>
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In <20020510140222.M57329@lpt.ens.fr>, Rahul Siddharthan <rsidd@online.fr> typed: > I think the conventional wisdom is that if you use sync mounts > (default) + softupdates, and turn off IDE write-caching, your > filesystem should always be in a consistent state. I'm no expert, I'm > quoting from the tuning(7) manpage and elsewhere... Three points of confusion here. One, the default mount is noasync, not sync. Two, softupdates is not orthogonal to the sync/noasync/async mount flag. It turns those off when you do the mount, so you really have four choices in that list: sync/softupdates/noasync/async. Finally, softupdates + write caching off will generally keep your directory tree in a consistent state, but that doesn't mean you can't lose data. <mike -- Mike Meyer <mwm@mired.org> http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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