We have Adaptec RAID 51645 / 52245 cards, and a supermicro chassis with E16 and E26 backplabes. With these cards we can not see any drives in the system?
It seems that the Adaptec RAID 51645 / 52245 cards are not (yet) compatible with our E16 and E26 backplanes. Please use latest Adaptec firmware to solve this issue.