Which expansion enclosure (JBOD) can be used with ES1640dc / ES1640dc v2? Can I attach an REXP series JBOD to it?
The ES1640dc / ES1640dc v2 has an Active-Active controller architecture. Expansion enclosures paired with the ES1640dc / ES1640dc v2 must also have a dual controller architecture to enhance system availability with dual path connections and failover. However, REXP expansion enclosures were designed for use with conventional QNAP NAS devices. The ES NAS must be paired with EJ1600 / EJ1600 v2 expansion enclosures which are equipped with dual controllers.