Re: raid5 software vs hardware: parity calculations?

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	Hello Dean ,

On Mon, 15 Jan 2007, dean gaudet wrote:
...snip...
it should just be:

echo check >/sys/block/mdX/md/sync_action

if you don't have a /sys/block/mdX/md/sync_action file then your kernel is
too old... or you don't have /sys mounted... (or you didn't replace X with
the raid number :)

iirc there were kernel versions which had the sync_action file but didn't
yet support the "check" action (i think possibly even as recent as 2.6.17
had a small bug initiating one of the sync_actions but i forget which
one).  if you can upgrade to 2.6.18.x it should work.

debian unstable (and i presume etch) will do this for all your arrays
automatically once a month.

-dean

Being able to run a 'check' is a good thing (tm) . But without a method to acquire statii & data back from the check , Seems rather bland . Is there a tool/file to poll/... where data & statii can be acquired ?
		Tia ,  JimL

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