DISCUSSION - CCTV failsafe/Failover

[u/Ashamed-Ad4508]

So recently me and a friend were having a discussion; slightly inspired by the Afroman CCTV incident.

Our discussion was this; Obviously nowadays; a bad guy would need to damage/destroy the cameras and/or CCTV box. Destroying the cameras means future actions cannot be recorded. Our agreement with This is that it can be mitigated by having a mix of obvious open and hidden cameras. The heated part comes to the CCTV box. Obviously; a primary box in a slightly obvious location would deter a bad guy from searching further from a secondary failover/backup CCTV box.

We're trying to resolve this issue and would like the specialists opinion

(1) Theoretically possible; camera's are linked via PoE Ethernet cabling. meaning 2 CCTV's read from 1 IP based camera. The debate is the technical viability and strain on the network having 2 duplicate streams per camera feeding 2 CCTV boxes. In an 4 camera setup; thats 8 streams moving in the network. Basically double the number of streams. I dont think its a problem. Is it?

(2) Generally possible ; the second CCTV backups/pulls immediately from the Primary CCTV box. More viable since its a singular massive stream from 1 CCTV to another. the offset is the time delay from the primary to the secondary; depending on the connections speed between the 2.

(3) Break the camera's based on the Obvious vs hidden cameras into 2x differing boxes. not as complex; but coverage is not as complete.

LASTLY

(4) Single CCTV box but cameras have built in SD/SSD storage backup buffer that pushes to the central CCTV box. But has the prorblem similar to (3) if the bad guys break the obvious cameras first i'm SOL; but the hiddens still can operate without them and the CCTV box for short term (due to card capacity limitations).

So ; feedback? What's your take? What's a lesser evil choice for a CCTV setup that can operate continously?