Actually, I want to put larger drives into my existing system, not add more drives. Documentation I've seen indicated teh 1.2TB HGST drive is the largest we can use on this device. Has the firmware been updated to accommodate larger drives?
As an alternative, I am intrigued by your mention of RESCV360JBD. What would be the part number of the additional JBOD? Would it be another JBOD2224S2DP?