In reference to my previous post, I have really awesome respond and I re-upgraded my *NEW* FAS2520 from 7-mode back to 9.2P2 cluster mode.
However, when I tried to create a new aggregate on the oncommand portal, it seems that 6 disks was assgined to node1 and node2, so I remembered I had to convert it to active/passive setup, and so I followed this article
So one last stupid question from me. What is the number_of_partitions I should be using? (reason I'm not sure is the articles showed 13 entries from its example, but mine only has 12 entries on the paritions/disks)
or is there a installation setup guide I could follow? I have not been able to find one. this is a FAS2520 with 12 x 4TB spec.