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From: Phillip Susi <psusi@ubuntu.com>
To: Fennec Fox <fennectech@gmail.com>, linux-btrfs@vger.kernel.org
Subject: Re: Btrfs on a failing drive
Date: Mon, 17 Nov 2014 20:17:03 -0500	[thread overview]
Message-ID: <546A9E0F.4070108@ubuntu.com> (raw)
In-Reply-To: <CAD1x5BB5uevNP4wUsp+2tgVhofGr53QTURunsiM-4ico95R9vQ@mail.gmail.com>

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On 11/17/2014 05:55 PM, Fennec Fox wrote:
> well i am an arch linux user and machine owner using a failing
> drive its still relyable enough for me but btrfs seems not to mark
> bad blocks as unusable and continues to try to write to them. 
> /bbs.archlinux.org/viewtopic.php?pid=1476540#p1476540  this forum
> post has a few more details regarding the problem  i really need a
> bit of help  thank you

If indeed writes are failing then the drive is only suitable for a
door stop.  Drives remap bad sectors to a spare pool on write so if it
is now failing writes, it has already exhausted its spare pool and you
should have replaced it long ago.  Have a look at its SMART stats and
it will probably confirm the drive is fubar.


> [   83.050733] BTRFS info (device sda1): csum failed ino 3048916
> off 33030144 csum 1217419445 expected csum 510562246 [   83.052317]
> BTRFS info (device sda1): csum failed ino 3048916 off 33030144 csum
> 1217419445 expected csum 510562246

That's not saying writes are failing; it is saying that your data has
been silently corrupted, which means the drive is the worst kind of
broken and should be thrown in a fire at once.


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  reply	other threads:[~2014-11-18  1:17 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-17 22:55 Btrfs on a failing drive Fennec Fox
2014-11-18  1:17 ` Phillip Susi [this message]
     [not found]   ` <CAD1x5BDJhZ6a=91G8+UzLTY+Oik7MVpr-XGKOQrOnXpkRLjwug@mail.gmail.com>
2014-11-18 15:36     ` Phillip Susi
2014-11-19  3:06       ` Duncan
     [not found]       ` <CAD1x5BDDrKoJ2Zf6Tf5MK4VBc3Q57jPaF43KOdhgcmw7uCK=Zg@mail.gmail.com>
2014-11-19 18:19         ` Phillip Susi
2014-11-18  6:10 ` Chris Murphy

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