From: Gour <gour@atmarama.net>
To: linux-btrfs@vger.kernel.org
Subject: Re: pro/cons of raid1 with mdadm/lvm2
Date: Mon, 1 Dec 2014 10:26:24 +0100 [thread overview]
Message-ID: <20141201102624.1224bc54@atmarama> (raw)
In-Reply-To: E4D50A09-CBA8-47DB-833B-D80D7BD6BD92@coker.com.au
On Mon, 01 Dec 2014 09:06:19 +1100
Russell Coker <russell@coker.com.au> wrote:
> When the 2 disks have different data mdadm has no way of knowing
> which one is correct and has a 50% chance of overwriting good data.
> But BTRFS does checksums on all reads and solves the problem of
> corrupt data - as long as you don't have 2 corrupt sectors in
> matching blocks.
Hmm, this is very interesting and valuable info. Thank you.
Sincerely,
Gour
--
Many, many births both you and I have passed. I can remember
all of them, but you cannot, O subduer of the enemy!
--
One is understood to be in full knowledge whose every endeavor
is devoid of desire for sense gratification. He is said by sages
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up by the fire of perfect knowledge.
http://www.atmarama.net | Hlapicina (Croatia) | GPG: 52B5C810
next prev parent reply other threads:[~2014-12-01 9:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-30 11:11 pro/cons of raid1 with mdadm/lvm2 Gour
2014-11-30 22:06 ` Russell Coker
2014-12-01 1:00 ` Chris Murphy
2014-12-01 8:18 ` Russell Coker
2014-12-01 9:30 ` Gour
2014-12-01 9:26 ` Gour [this message]
2014-12-01 18:19 ` Robert White
2014-12-01 5:42 ` Roman Mamedov
2014-12-01 9:33 ` Gour
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