On Wed, Nov 26, 2008 at 02:04:53PM -0500, scjody@sun.com wrote:

I realize that the format of the statistics may not be the best, and
there may be a better location than /proc/mdstat, so I welcome suggestions
on where to put them.

Are these values useful for mere mortals trying to create a RAID array
best suited for a specific workload, or are these only useful for people
hacking on the RAID code? If the former, then I'd suggest to use sysfs
(something like /sys/block/<dev>/md/statistics, similar to
/sys/class/net/<dev>/statistics). If the latter, then debugfs would be
better.

Gabor

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     MTA SZTAKI Computer and Automation Research Institute
                Hungarian Academy of Sciences
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