Alerts are not real swooft. No daily/weekly or way to do it. At least no one has yet. I would have to dig, but you can find the health definitions xml files. the only thing you can really change is " escalate", that means it will be emailed.
Thanks for info - really weird. Doesn’t loook like there is any defination for a disk failure? What good I wonder are alerts if you don’t even know when a drive has failed…