Re: Periodic RebuildStarted event

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Hello!

On Tue, Feb 8, 2011 at 3:25 AM, NeilBrown <neilb@xxxxxxx> wrote:
[snip]
> Then start either the
> 'next' array at the beginning, or the 'current' array at the current point
> (write to sync_min).
I couldn't find documentation for sync_min/sync_max sysfs params at
least for repo cloned from
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-2.6.37.y.git
coolcold@coolcold:~/gits/linux-2.6.37.y$ grep -qi sync_min
Documentation/md.txt || echo failed find docs
failed find docs

As I could understand from sources - resync_min & resync_max are
expressed in sectors (512bytes?)  and are set to 0 & total sectors on
device accordingly. resync_max value should be divisible by array
chunk size (in sectors) . After setting this values, one can trugger
"check" / "repair" into sync_action.

My basic idea is to use this method to clear pending sectors from
SMART checks and looks like this gonna work, am i right?

> Then wait for however long you want, abort the check (write 'idle' to
> 'sync_action') and find out where it got up to (read sync_min) and record
> that for next time.
>
> NeilBrown
>


-- 
Best regards,
[COOLCOLD-RIPN]
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