Retention Should Match Business Risk
Some incidents are noticed immediately. Others are discovered days or weeks later. If footage has already overwritten by the time the problem is discovered, the camera system cannot help. Retention should match how the business expects to review incidents.
What Drives Storage Use
- Number of cameras
- Resolution
- Frame rate
- Compression
- Continuous vs motion recording
- Audio recording where used
- Scene activity
- Retention target
Resolution vs Retention
Higher resolution can produce more useful detail, but it also uses more storage. A system should not be set to poor quality just to increase retention. The goal is to balance useful footage with enough storage duration.
Motion Recording
Motion recording can greatly reduce storage use in quiet areas. However, high-traffic areas may record almost continuously anyway. Motion settings should be tested so important activity is not missed.
Different Cameras May Need Different Rules
A cash register camera may need higher detail. A parking lot overview may need wide coverage. A storage room may have little motion. Retention and recording settings can be adjusted by camera purpose.
Document Retention Settings
Businesses should know how long footage is kept, who can access it, how exports are handled, and what happens when storage fills. This should be documented with the camera system.
Frequently Asked Questions
How long should a business keep camera footage?
Many businesses plan around several weeks, but the right retention depends on incident discovery time, risk, camera count, storage, and operational needs.
What affects camera storage requirements?
Camera count, resolution, frame rate, compression, motion settings, continuous recording, and retention target all affect storage.
Is motion recording better than continuous recording?
Motion recording can save storage, but continuous recording may be preferred in high-risk or high-traffic areas.
Can footage retention be increased later?
Often yes, by adding storage, reducing resolution or frame rate, using motion recording, or adjusting retention settings.
Should retention be different for different cameras?
Yes. A register camera, parking lot overview, entrance camera, and storage room camera may have different retention needs.