Avigilon Cameras are great. The HD NVR they offer with capacities 3,5,15,21 etc. are using Dell PowerEdge R710 loaded with 3-21TB configured as RAID 5. I am presuming they have taken same old R710 and changed the logo. Or are there any upgrades or changes made? Why should a customer pay a much higher amount for the older dell series when the newer R720 with latest and better configuration is available at a much cheaper price.
Another question I have is that the 15 and 21TB models are using SATA HDDs configures RAID 5 in the same server. Is this a recommended scenario?