Hi, Currently we have an RSS4000 Rel 184.108.40.206 with 5- 2 terabyte drives. I currently have 3 terabytes of Recordings stored here. Can I offload these recordings to a Turbo NAS device prior to doing an upgrade and then load them back to the 4000. I do not want to take a chance of loosing any data. If I do a software update will these recordings be automatically backed up?