Re: [PATCH md ] Better handling of readerrors with raid5.

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On Fri, 16 Sep 2005, NeilBrown wrote:

TESTERS WANTED!!  SEE BELOW...

This patch changes the behaviour of raid5 when it gets a read error.
Instead of just failing the device, it tried to find out what should
have been there, and writes it over the bad block.  For some
media-errors, this has a reasonable chance of fixing the error.
If the write succeeds, and a subsequent read succeeds as well, raid5
decided the address is OK and conitnues.

Neil,

what is the current status of this patch ?
yesterday one of my disks decided to fail during the night (3ware ide timeout) during the rebuild one of my disks decided it had a read error so the raid was 'down'

i recovered my raid by using dd_rescue the last failed disk to a spare disk (with 4 read errors)
(and doing a mdadm -A -force)

(so I should have a corrupted file somewhere?)

looks like this patch would help in situations like this
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