What models of HDD in RNDP4410

I ran my first NVX for almost a year with 4x1TB drives. I was reaching about 60% of capacity, so a month ago I replaced two of the 1TB drives with 3TB drives and boosted my net redundant capacity after overhead from 2.7TB to 4.5TB and am now about 38% full (videos really eat the disk space). Since you are currently using about 800GB, 2.7TB (net) should last you a good while and with the X-Raid2 function, you can upgrade in stages.

Last fall, when they were discounting the NVX units, I purchased a second (Business Edition this time as it was $40 more than the Pioneer and had a 5 year warranty). The Pioneer that I had first is now the backup unit. On advantage of having a second matching unit, is that if something happens to the primary, you can shut it down, have your clients shutdown and then rename the backup to the same name as the primary, bring the clients back on and continue in operation while the work on the former primary that is causing problems. You might not be able to do that with a "cheap NAS".