From: Stefan Behrens <sbehrens@giantdisaster.de>
To: Hugo Mills <hugo@carfax.org.uk>, Waxhead <waxhead@online.no>,
linux-btrfs@vger.kernel.org
Subject: Re: Will BTRFS repair or restore data if corrupted?
Date: Thu, 26 Jan 2012 10:33:03 +0100 [thread overview]
Message-ID: <4F211DCF.90707@giantdisaster.de> (raw)
In-Reply-To: <20120126085938.GC5531@carfax.org.uk>
On 1/26/2012 9:59 AM, Hugo Mills wrote:
> On Thu, Jan 26, 2012 at 12:27:57AM +0100, Waxhead wrote:
[...]
>> Will BTRFS try to repair the corrupt data or will it simply silently
>> restore the data without the user knowing that a file has been
>> "fixed"?
>
> No, it'll just return the good copy and report the failure in the
> system logs. If you want to fix the corrupt data, you need to use
> scrub, which will check everything and fix blocks with failed
> checksums.
Since 3.2, btrfs rewrites the corrupt disk block (commit 4a54c8c and
f4a8e65 from Jan Schmidt), even without scrub.
next prev parent reply other threads:[~2012-01-26 9:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-25 23:27 Will BTRFS repair or restore data if corrupted? Waxhead
2012-01-26 7:19 ` Chester
2012-01-26 8:59 ` Hugo Mills
2012-01-26 9:33 ` Stefan Behrens [this message]
2012-01-26 19:16 ` Zoiled
2012-01-26 20:22 ` cwillu
2012-01-26 20:27 ` Zoiled
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