It is though. Essentially you want an enterprise level setup at budget prices. Those two don't mix. What the people on here are trying to tell you, Your proposed solution for storage is not ideal and the potential for issues is very high. Usb or thunderbolt transfer speeds you list are theoretical maximums of what the protocol/port is capable of. What you get in the real world is vastly different and that is what they are trying to tell you. Unless you have a legitimate reason to store that amount of data, all you are doing is creating a more complex environment for not good reason. Beyond the added complexity, you also add in significant cost.
My fault for giving that impression. This is gonna cost a lot. I accept that. Im really trying to learn more about BI and using NAS or backup.
My thoughts now are this.
1. Main BI Computer
i7-14700
64TB DDR5 Ram
1 or 2 TB NVME OS Drive
4 TB extra drive used for whatever I may need
Nvidia Graphics Card (used for two large 4K monitors)
2. Six OWC Mercury Elite Dual Pro Enclosures ($330 each without HDs) daisy chained with thunderbolt
Each one setup as RAID 1 with 12TB WD Purple drives
(This would give me 365 days of video for each of the 6 required cameras, it also gives me redundancy for drive failure)
(I like this idea because I can p touch each enclosure labeled for the camera it goes to. It also goes my employees easy ability to hot swap a bad drive)
3.a. One OWC Thunderbay 8 with eight 18tb western digital purple drives for 30 other cameras
Or
3.b. One Synology with Seagate Skyhawk AI 16tb for 30 other cameras
(These cameras aren’t critical for backup. I was thinking RAID 6 just to protect from drive failure
4. Some type of NAS to backup the six required cameras. I do not know how this would work with backup. I assume some type of software in windows would backup those six RAID 1 drives. I could get another Synology with nas drives.
I also like the idea some have given of cloning those 6 cameras and run them to two separate hard drives. That seems very simple to me.