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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: Volker Kuhlmann <list0570@xxxxxxxxxxxxxxx>
Date: Sun, 21 Dec 2008 08:47:12 +1300
Cc: Pavel Machek <pavel@xxxxxxx>, 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>
As requested before, please remove mailing list admin addresses
(smartmontools-database-owner@xxxxxxxxxxxxxxxxxxxxx) from cc. Thanks.

Cc: Pavel Machek <pavel@xxxxxxx>,
        "cc: smartmontools-support"@lists.sourceforge.net,
        linux-raid@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx,
        linux-ide@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx,
        Alan Piszcz <ap@xxxxxxxxxxxxx>,
        "X-Mailing-List: linux-raid"@vger.kernel.org
Subject: Re: Intel X25-E running Linux using XFS
In-Reply-To: <alpine.DEB.1.10.0812121516190.17857@xxxxxxxxxxxxxxxx>

On Sat 13 Dec 2008 09:23:19 NZDT +1300, Justin Piszcz wrote:

> On Fri, 12 Dec 2008, Pavel Machek wrote:
>> Hi!
>>> Due to the 100k write cycle lifetime, I will not be performing any more
>>> benchmarks on the SSD itself, such benchmarks are available on
>>> techreport.com but just wanted to send out the smart data for the
>>> smartmontools list and point out it is working with linux+ich7+xfs.
>>> Overall, whenever I do anything now its just like the entire machine is
>>> sitting in a ramdisk (similar when you boot knoppix and load to ramdisk).
>>> The techreport benchmarks are here:
>>> http://techreport.com/articles.x/15931
>> 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.  I do not wish to trash a $720 SSD or my current install, if someone 
> else wants to try feel free though :)
> With barriers, presumably it would be safe-- but as always, a UPS/and 
> barriers and/or RAID, there is no excuse not to have regular backups incase 
> of a failure at any time..
> I do recall however one instance where there was an apt-get dist-upgrade 
> going and the power was cut to a machine on purpose (before/not using 
> barriers) and suffice to say-- it got mucked/suffered many corruptions
> all over the place.
> Justin.
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Volker Kuhlmann                 is list0570 with the domain in header
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