Cloud vs Local Storage for CCTV Footage: Which Is Right for You?
One of the most important decisions when designing a CCTV system is where your surveillance footage will be stored. Cloud storage and local NVR (Network Video Recorder) storage each offer distinct advantages and trade-offs. For Edmonton businesses, factors like internet reliability, data sovereignty requirements, and budget all influence the best choice. This guide compares both options in detail to help you make an informed decision.
Local NVR Storage
Local storage uses on-premises hardware to record and store surveillance footage. Here's what you need to know:
Advantages:
- No recurring fees: Once the NVR and hard drives are purchased, there are no monthly subscription costs. For a 16-camera system recording 24/7 at 4MP, enterprise-grade storage costs approximately $2,000–$4,000 upfront.
- Instant access: Footage is available immediately without internet dependency. Reviewing recordings is fast and reliable, with no latency or buffering.
- Data sovereignty: Your footage never leaves your premises. This is important for businesses with strict data governance policies or regulatory requirements.
- Bandwidth independence: Local recording doesn't consume internet bandwidth. A 16-camera 4K system can require 200+ Mbps of sustained upload bandwidth if streaming to the cloud — impractical for many Edmonton business internet connections.
- Full resolution recording: Record at maximum camera resolution without bandwidth-imposed quality reductions.
Disadvantages:
- Physical vulnerability: NVRs can be stolen, damaged by fire, or affected by flooding. A break-in where the thief takes the NVR defeats the purpose of having cameras.
- Limited remote access: Remote viewing requires reliable internet and proper network configuration. Slow upload speeds (common with Edmonton's residential-grade internet) can limit remote playback quality.
- Maintenance responsibility: Hard drives fail over time. RAID configurations mitigate this risk, but drive replacements and NVR maintenance are your responsibility.
- Scalability constraints: Adding cameras may require upgrading or adding NVRs, increasing complexity.
Cloud Storage
Cloud storage transmits footage to secure off-site data centres. Here's the breakdown:
Advantages:
- Off-site protection: Footage is safe from on-premises theft, fire, or natural disaster. Even if your building is destroyed, your recordings survive.
- Anywhere access: View live and recorded footage from any device with internet access. Modern cloud platforms offer excellent mobile apps and web interfaces.
- Automatic backups: No manual backup processes. Footage is automatically replicated across multiple data centres.
- Scalable: Add cameras without hardware upgrades. Cloud storage scales infinitely.
- AI analytics included: Most cloud platforms include AI-powered analytics (person detection, vehicle detection, smart search) as part of the subscription.
Disadvantages:
- Recurring costs: Cloud storage subscriptions typically cost $10–$30 per camera per month. For 16 cameras, that's $160–$480/month ($1,920–$5,760/year).
- Bandwidth requirements: Continuous cloud recording requires significant upload bandwidth. A single 4K camera at 15fps requires approximately 15–20 Mbps upload. Most Edmonton business internet plans offer 20–50 Mbps upload, limiting the number of cameras that can stream continuously.
- Internet dependency: If your internet goes down, cloud recording stops. Edmonton businesses should have backup internet (LTE failover) if relying on cloud storage.
- Data sovereignty concerns: Your footage is stored on servers that may be located outside Canada. Some industries and compliance frameworks require data to remain in Canada.
Hybrid Storage: The Best of Both Worlds
CCTV Hub Edmonton recommends a hybrid storage approach for most commercial clients:
- Primary recording on local NVR: All cameras record at full resolution to a local enterprise NVR with RAID storage. This ensures continuous high-quality recording without bandwidth concerns.
- Cloud backup for critical cameras: Key cameras (entrances, cash handling, loading docks) also upload to cloud storage for off-site redundancy.
- Event-based cloud upload: Motion-triggered clips from all cameras are uploaded to the cloud, providing off-site evidence without the bandwidth requirements of continuous cloud recording.
This approach provides the reliability and quality of local storage with the disaster recovery benefits of cloud backup — at a fraction of the cost of full cloud recording.
Storage Capacity Planning
For local NVR storage, here's how to estimate capacity needs:
- 4MP camera at H.265: approximately 15–20 GB per day (continuous recording)
- 4K camera at H.265: approximately 30–40 GB per day (continuous recording)
- 30-day retention for 16 × 4MP cameras: approximately 7–10 TB
- 90-day retention for 16 × 4MP cameras: approximately 21–30 TB
Enterprise NVRs support 8–24 hard drive bays, allowing up to 240TB of storage in a single unit. CCTV Hub Edmonton sizes storage based on your camera count, resolution, and required retention period.
Making Your Decision
- Choose local-only if: You have reliable on-site security, adequate storage budget upfront, and no requirement for off-site redundancy.
- Choose cloud-only if: You have 6 or fewer cameras, excellent internet upload speeds (100+ Mbps), and prefer operational expenditure over capital expenditure.
- Choose hybrid if: You want the most reliable and cost-effective solution for a typical Edmonton commercial deployment (8+ cameras).
Contact CCTV Hub Edmonton for a storage assessment tailored to your specific camera count, resolution requirements, and retention needs.