So, i know i've been asked many times regarding is it possible to build-out capacity management based on OnCommand.
So, what I did is write a script that queries the aggregates and puts together growth rate numbers and then I did some calculation to figure out about how many days until your aggregate will reach 90%. I then pipe this to HTML headers and send it on it's way to a webserver for team review.
The code is provided as is, and if you feel you can help build on it, either reply to the post or send me a PM. For our environment I skip Aggr0, b/c we don't use this for anything other than Ontap files and vfiler roots
Hope this concept helps a lot of people.