Re: Handling mismatch_cnt

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Thanassis Tsiodras wrote:
Handling mismatch_cnt<>0
[trim]
Am I missing something? Is MD RAID1 in fact better than what I
have understood? Is there an answer that would allow me to use it
> without the uncertainty of "russian-roulette" fixes when the
> inevitable mismatch_cnt<>0 occurs?

RAID1 will ensure your data is not lost when one disk completely fails.
This is a rather common mode of failure. You are protected against this
catastrophic event but not against (minor? damage of a) sector failure.
I use RAID for just this benefit.

Unlike RAID5, RAID6 should be able to do better than a random correction
(does it?).

RAID1 with more than two disks should also do better with voting
(does it?).

In other words, is there anything a Linux guy can do besides wait
for btrfs or trust a FUSE version of ZFS?

Thanks for any feedback,
Thanassis.

--
Eyal Lebedinsky	(eyal@xxxxxxxxxxxxxx)
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