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Date:      Sun, 27 Aug 2000 10:52:34 +0930
From:      Greg Lehey <grog@lemis.com>
To:        j mckitrick <jcm@freebsd-uk.eu.org>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: read only / filesystem
Message-ID:  <20000827105234.C90379@wantadilla.lemis.com>
In-Reply-To: <20000826180427.A80505@dogma.freebsd-uk.eu.org>; from jcm@freebsd-uk.eu.org on Sat, Aug 26, 2000 at 06:04:27PM %2B0100
References:  <20000824002732.A45983@dogma.freebsd-uk.eu.org> <20000824101341.D66923@wantadilla.lemis.com> <20000824130404.A51338@dogma.freebsd-uk.eu.org> <20000825111535.F548@wantadilla.lemis.com> <20000825151255.A65178@dogma.freebsd-uk.eu.org> <20000826085036.B52219@wantadilla.lemis.com> <20000826180427.A80505@dogma.freebsd-uk.eu.org>

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On Saturday, 26 August 2000 at 18:04:27 +0100, j mckitrick wrote:
> On Sat, Aug 26, 2000 at 08:50:36AM +0930, Greg Lehey wrote:
>>>>> also, are there any benefits to doing this, or is the noatime option
>>>>> good enough?
>>>>
>>>> There are certainly benefits.  It makes the system a lot more crash
>>>> resistant.
>>>
>>> This means resistant to hard drive corruption, right?  It doesn't actually
>>> affect OS stability.
>>
>> Correct.
>
> but if hard drives are so reliable these days, does this really make much
> of a difference?

It's not the reliability of the disk that's the issue.  What if the
system crashes while the file system is in the process of making
massive metadata changes?

> Also, if the only writes to / were the tty write and the chmods for
> the gettys (i believe, or something similar) then what other stray
> or corrupt writes are prevented?

Good question.  There's probably not much likelihood of damage anyway.

Greg
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