Does ReadyNAS support JBOD or some sort of non-RAID setup? [ReadyNAS.com Wiki]
x86/Sparc: ReadyNAS does not support JBOD, however, you can create a RAID 0 striped volume across all four disks or create a separate RAID 0 volume on each disk. ARM: The Duo and NV+ v2 support JBOD. With the Flex-RAID JBOD option a separate RAID 0 ......