Need VMS Server Setup Help - Recommended Specs And Configuration

Hi I am looking for answers for the below

1:The role of most VMS is to just send the stream received from the cameras to the storage rite.So if we take the same cameras and send the same main stream to multiple VMS like Milestone,Axxon,Genetec,Avigilon etc via ONVIF the exported footage without alteration should give the exact same quality rite?

2:CPU,GPU,Memory usage.No matter what CPU or GPU you use, as long as the usage is not exceeding 70-80%, the footage should be seemless rite?

3:The stream connection recommded is over TCP or UDP?

4:What settings of shutter/iframe/fps is recommded for clear image when pausing/frame freeze a video of a moving person to get a clear image of the face.

5:If disk configured as JBOD or RAID,fragmentation can occur? Raid 5 or Raid 6 Recommded?

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