scrub was Re: RAID5 Problem - $1000 reward for help

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Am Sonntag, 17. September 2006 13:36 schrieben Sie:
> On 9/17/06, Ask Bjørn Hansen <ask@xxxxxxxxxxxxxx> wrote:
> > > It's recommended to use a script to scrub the raid device regularly,
> > > to detect sleeping bad blocks early.
> >
> > What's the best way to do that?  dd the full md device to /dev/null?
>
> echo check >/sys/block/md?/md/sync_action
>
> Distros may have cron scripts to do this "right".
>
> And you need a fairly recent kernel.

Does this test stress the discs a lot, like a resync? 
How long does it take? 
Can I use it on a mounted array?

-- 
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GCS d--(+)@ s-:+ a- C++++ UL++ P+>++ L+++>++++ E-- W++ N o? K-
w--(---) !O M+ V- PS+ PE Y++ PGP t++(---)@ 5 X+(++) R+(++) tv--(+)@ 
b++(+++) DI+++ D- G++ e* h>++ r* y?
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