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How to run a command once a ZFS scrub *completes*?

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linux-howto

http://serverfault.com – I would like to use cron to schedule periodic scrubs of my ZFS pool, and at some reasonably short time after the scrub finishes, email a status report to myself. The purpose of this is to catch any problems without having to manually look for them (push rather than pull). The first part is easy: just set up a cron job to run zpool scrub $POOL as root at whatever interval is reasonable in my particular situation. The second part, I'm not quite so sure how to do. zpool scrub returns immediately and then the scrub is run in the background by the system (which is certainly desirable behavior if (HowTos)