Plan recording with measurable assumptions.

Work through bitrate, retention, network limits and recorder selection before specifying the system.

1. Storage sizing: from measured bitrate to usable capacity

   Keep units, recording duration and disk overhead explicit.

2. NVR bandwidth: recording, playback and decoding are different

   Map each flow through the network interface it actually crosses.

3. Choose an NVR by workload, not by series name

   Use channel, throughput, decoding, storage and power limits together.

4. Video and audio compression: compatibility before savings

   Separate codec, transport and bitrate control when sizing a recorder.

5. Cloud, local or hybrid: design for interrupted connections

   Place capture, recording, analytics and administration deliberately.