linux-kernel - Re: document ext3 requirements

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Message-Id: <200901070559.03359.rob@landley.net>
Date:	Wed, 7 Jan 2009 05:59:02 -0600
From:	Rob Landley <rob@...dley.net>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Theodore Tso <tytso@....edu>,
	"Alexander E. Patrakov" <patrakov@...il.com>,
	Pavel Machek <pavel@...e.cz>,
	kernel list <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>, mtk.manpages@...il.com,
	rdunlap@...otime.net, linux-doc@...r.kernel.org
Subject: Re: document ext3 requirements

On Monday 05 January 2009 05:43:29 Alan Cox wrote:
> > Huh?  I've never heard an assertion that disabling the write cache (I
> > assume you mean using write-through caching as opposed to write-back
> > caching), shortens the lifespan of disk drives.  Aggressive battery
>
> Thats what I was told by a disk vendor - simply because the drive makes a
> lot more mechanical movements and writes.

It certainly sounds like less write cacheing would shorten the lifespan of 
flash devices...

Rob
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