linux-ext4 - Re: Data integrity built into the storage stack

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Message-ID: <20090901124403.GC1371@ucw.cz>
Date:	Tue, 1 Sep 2009 14:44:04 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Martin K. Petersen" <martin.petersen@...cle.com>
Cc:	Greg Freemyer <greg.freemyer@...il.com>,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-ext4@...r.kernel.org
Subject: Re: Data integrity built into the storage stack

Hi!

> I do agree that we do have to be more prepared for collateral damage
> scenarios.  As we discussed at LS we have 4KB drives coming out that can
> invalidate previously acknowledged I/Os if it gets a subsequent write
> failure on a sector.  And there's also the issue of fractured writes

Hmmm, future will be interesting.

'ext3 expects disks to behave like disks from 1995' (alarming).

									Pavel

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