Dahua 4216-4ks2 maximum bandwidth/cameras support?

hello
I intend to use 2x 1831 , 2x 1431 , 2x 4231t cameras. i have already purchased few including NVR4216 and some are coming.

I want to know if someone has tried similar setup with this 4216 nvr, i want to avoid spending heavy on the next nvr 5216.

the specification says 2@4k/8@1080p max 200mbps IN/ 200mbps out, my requirements are 2x8mp, 2x4mp, 2x2mp.

I also want to know how do hard disks work in these nvr, do they require to install the complete number of supported hard disks ( in this case 2) to get the specd bandwidth from the nvr?

thank you

Asad l said:

hello
I intend to use 2x 1831 , 2x 1431 , 2x 4231t cameras. i have already purchased few including NVR4216 and some are coming.

I want to know if someone has tried similar setup with this 4216 nvr, i want to avoid spending heavy on the next nvr 5216.

the specification says 2@4k/8@1080p max 200mbps IN/ 200mbps out, my requirements are 2x8mp, 2x4mp, 2x2mp.

I also want to know how do hard disks work in these nvr, do they require to install the complete number of supported hard disks ( in this case 2) to get the specd bandwidth from the nvr?

thank you

Click to expand...

Couple of things:
- 5216 has max 320mbps up/down
- 4216 has indeed max 200mbps
- 5216 is "classified" as pro-series. it includes (and enables) all IVS related capabilities
- regarding the disks: I cite Tom's HW guide: "For a modern 7200 RPM drive it ranges from about 80-160 MB/s today" which means max 1.280mbps, which is more than enough for the aforementionned network bandwiths.
- you can easily "start" with one hard drive, and as these NVRs do not employ RAID of any kind, you can add one disk later on. The main idea is that you can arrange "priority" (eg channel 1 and 4 on hdd 1, channel 2, 3 and 5 on hdd 2), not only for performance, but surely for "split of risk": if a hard disk fails, you are going to loose either all your footage, or only "half" of it.

Hope this helps!
CC