Why cameras go quiet
A camera can look installed and still record nothing. The causes are ordinary:
- A recorder disk fails or fills, and recording stops or overwrites early
- A stream drops after a network change, a firmware update or a changed password
- A camera is knocked, covered or turned to face a wall
- The recorder’s clock drifts, so footage exists but cannot be found for the time it is needed
Why nobody notices
Nobody watches every camera, and a recorder can report itself healthy while one of its channels is empty. The gap is found when an incident happens and the footage is not there.
What to watch
- Stream health for every camera, not just whether it answers a ping
- Recording continuity: hours actually written against hours expected
- Disk health and free space on every recorder
- Retention actually achieved against the policy
- Clock drift on cameras and recorders
- The picture itself: blur, blockage and a changed view
A check you can run this week
Pick one site. For every camera, play back a minute from each of the last three nights and note which ones are missing, black or wrong. Compare the retention on each recorder with what your policy says. The list you end with is your baseline, and the size of it is the case for automating the check.
Make it automatic
RCC’s infrastructure health watches cameras, streams, recorders, network and storage on any VMS, correlates symptoms into one problem and shows its root cause with the evidence, so the list writes itself every day. See infrastructure health.
