Netgear today announced new NAS servers designed for "economical pro" users. Apart from the amount of drive bays (and hence the types of RAID support), the two-bay ReadyNAS Duo and the four-bay ReadyNAS NV+ V2 are essentially the same.
Besides RAID 0, 1, and 5 (available with the NV+ V2 only), both servers support Netgear's XRAID 2 configuration, which is a proprietary flexible RAID that allows you to use hard drives of different capacities and upgrade the RAID without having to build it from scratch. XRAID 2 automatically manages hard drives based on the amount of drives used with a balance between performance and data integrity, with one drive always being used for data redundancy. XRAID 2 has been available in other servers from Netgear, such as the higher-end ReadyNAS Ultra4. … Read more