
Anyway, found many comments in this User Group but one thing is missing here: How to hack 3PAR. Apparently everyone here is very careful about not to breaking support. Well, many of these equipment are already out-of-support life-cycle anyway.
Found an alternative to my problem using this as a JBOD cage: https://www.youtube.com/watch?v=qVcLegTqQ50&t=28s. I've already ordered a pair of P800 SAS controllers on ebay.
But before giving up on 3PAR forever, can someone here point me to "re-image" tips to downgrade my controllers to 3.2.1 (before the rolling passwords)?
For example, overriding the internal SSD with an pristine 3.2.1 OS?