Original product was defective, have received 3 replacements that have also been defective.
D. Bloom, Amazon
24 April 2011
Summary: I purchased ReadyNAS Ultra 6 Plus from Netgear via Amazon.com which was received on June 15th, 2012. I began to immediately experience problems with the device. In the first week of running the NAS device 4 of the 6 installed drives became non-operational.
Summary: I highly recommend comparing this NAS to the offering by Synology DS1511+. I returned this unit and purchased the DS1511+, best decision I could have made. The Netgear's interface is nothing to brag about, its more, or less, like a glorified Netgear router.
Summary: I have a which has been great but wanted a NAS with more capacity and purchased the ReadyNAS Ultra 6 Plus. From the start I've had a terrible experience it. It refuses to operate with anything more than 2 hard-drives in the system.