All downloads for the ReadyNAS range can be found here.
http://kb.netgear.com/app/answers/detai ... s#software
Netgear ReadyNAS downloads
Re: Netgear ReadyNAS downloads
The automatic expansion is for just popping out a drive and pop in a bigger one and let it sync. And then replace the other smaller drive and let it sync again... Will expand the storage size automatically.