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Re: Intel X25-E running Linux using XFS

To: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>
Subject: Re: Intel X25-E running Linux using XFS
From: Stefan Richter <stefanr@xxxxxxxxxxxxxxxxx>
Date: Sat, 13 Dec 2008 12:43:53 +0100
Cc: Pavel Machek <pavel@xxxxxxx>, smartmontools-support@xxxxxxxxxxxxxxxxxxxxx, smartmontools-database-owner@xxxxxxxxxxxxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-ide@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, Alan Piszcz <ap@xxxxxxxxxxxxx>
In-reply-to: <alpine.DEB.1.10.0812121516190.17857@xxxxxxxxxxxxxxxx>
References: <alpine.DEB.1.10.0811271257470.2233@xxxxxxxxxxxxxxxx> <20081212185803.GE11974@xxxxxxxxxx> <alpine.DEB.1.10.0812121516190.17857@xxxxxxxxxxxxxxxx>
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20081116 SeaMonkey/1.1.13
Justin Piszcz wrote:
> On Fri, 12 Dec 2008, Pavel Machek wrote:
>> Actually I'd like to know... how does it behave during powerfails
>> while it is being written to?
>> Flashes I seen (USB / SD) developed bad sectors in that case, and
>> ext2/ext3 can't handle that. (And I don't think xfs can handle that
>> either).
> I have a UPS for all of my machines, so that will not be a problem in my
> case.

UPSs fail too.

> With barriers, presumably it would be safe

There are other opinions:  http://lwn.net/Articles/309576/
(Magnetic disks are discussed there.)
Stefan Richter
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