Re: pro/cons of raid1 with mdadm/lvm2

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On Mon, 01 Dec 2014 09:06:19 +1100
Russell Coker <russell@xxxxxxxxxxxx> 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 
to be a worker for whom the reactions of work have been burned 
up by the fire of perfect knowledge.

http://www.atmarama.net | Hlapicina (Croatia) | GPG: 52B5C810


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