From owner-freebsd-chat  Fri May 10 10:40:46 2002
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Date: Fri, 10 May 2002 19:40:22 +0200
From: Rahul Siddharthan <rsidd@online.fr>
To: Mike Meyer <mwm-dated-1021483897.a81af7@mired.org>
Cc: chat@FreeBSD.ORG
Subject: Re: My horror story
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References: <000701c1f804$47d5dc00$6401a8c0@penguin> <20020510140222.M57329@lpt.ens.fr> <15580.1017.276905.556906@guru.mired.org>
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In-Reply-To: <15580.1017.276905.556906@guru.mired.org>; from mwm-dated-1021483897.a81af7@mired.org on Fri, May 10, 2002 at 12:31:37PM -0500
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Mike Meyer said on May 10, 2002 at 12:31:37:
> 
> Three points of confusion here. One, the default mount is noasync, not
> sync. 

True, sorry.

> Two, softupdates is not orthogonal to the sync/noasync/async
> mount flag. It turns those off when you do the mount,

If so, it's not documented in the tunefs(8), newfs(8) or mount(8) 
manpages. 

> 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.

True, but you won't lose old data, only new data which haven't been
written to disk (ie, maybe a few minutes old at most).

- Rahul

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