Is there a plan at some point to include a daemon or a cron job to run automatic zpool scrubbing? I believe this was a feature that is available in other OSs' packages, but not currently with ZoL. Currently, I include two cronjobs, like so:

    18 * * * * /sbin/zpool list | grep ztank | grep ONLINE > /dev/null || /sbin/zpool status
    35 1 * * 4 /sbin/zpool scrub ztank

This way cron simply emails me if there are errors. However, I'd like a lot more communication from my storage array: if there are detected errors, I want to know right away.

My other question is much more specific to my case. Stupidly, I bought the Western Digital Green drives for my server (running in as a mirror of two drives). They are normally under no heavy load: just occasional file access to store/retrieve pictures, documents, or stream video. How likely am I to run into problems/should I replace these drives ASAP?