linux-kernel - Re: Problem with ata layer in 2.6.24

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Message-ID: <20080129193403.62fe95e8@core>
Date:	Tue, 29 Jan 2008 19:34:03 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Daniel Barkalow <barkalow@...ervon.org>
Cc:	Richard Heck <rgheck@...jweil.com>,
	Gene Heskett <gene.heskett@...il.com>,
	Zan Lynx <zlynx@....org>,
	Calvin Walton <calvin.walton@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux ide Mailing list <linux-ide@...r.kernel.org>
Subject: Re: Problem with ata layer in 2.6.24

> I've seen a lot of verbosity out of SCSI messages, but I haven't seen a 
> straightforward interpretation of the problem in there. It's all 
> information useful for debugging, not information useful for system 
> administration.

It tells you what is going on. Unfortunately that frequently requires
some basic knowledge of how to interpret the error report. Drive
interface behaviour simply doesn't boil down to a fault light on the
dashboard or a "tighten the cable". For most common fault types you'll
get errors most administrators should find meaningful - like "Media error"

> On the other hand, bringing the system down because a device is 
> misbehaving is a poor idea. I've personally recovered most of the data off 

Hence we have RAID and SATA hotplug.

Alan
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