On 9/17/06, Ask Bjørn Hansen [off-list ref] wrote:

quoted

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.
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