I know that this is an old post but in case anyone ever buys one of those NEC LSI SAS 9264-8i cards, there's a key that you have to buy. It's a tiny piece of hardware that looks like this: http://www.directdial.com/AOC-SAS2-RAID5-KEY.html
You can buy them off Ebay for super cheap (like $7).
There's a key granting the card RAID5 and 6 capabilities and another Key granting a feature called CacheCade 2.0 (allowing your RAID array to cache off SSDs).
You can install the MegaRAID Storage Manager and it will provide you with this information.