The Sun StorEdge[tm] A3500 and A3500FC arrays are advanced subsystems. They incorporate hot-swappable, redundant components, and dual controllers, making them high-availability solutions for OLTP applications. They are fully compatible with Sun StorEdge A1000 and D1000 arrays, which makes it easy to migrate from one solution to another as needs change. For maximum data availability at an affordable price, trust your mission-critical applications to the Sun StorEdge A3500 and A3500FC arrays.