— CCTV Storage · Industrial
Manufacturing facility — 32 cameras, 90-day retention
Problem. A manufacturing facility with 32 cameras at 4MP H.265+ needs 90-day continuous retention for safety-incident review and process audit.
Answer. 32 × 4MP × H.265+ × 25 fps × 90 days of continuous recording lands in the 145–150 TB range once RAID-6 headroom is included — a multi-bay JBOD / SAN or VMS distributed-storage architecture, not a single desktop NAS.
02 / In depth
How this preset reads — the engineering view.
Industrial CCTV retention is process-audit driven before it is security driven. 90 days covers a typical batch / quality investigation window and the longest typical injury-claim filing window across most Indian state jurisdictions.
This preset assumes 32 cameras at 4MP H.265+, 25 fps and continuous recording (not motion-triggered — industrial processes need continuous frames for proper audit). The calculator returns the storage envelope; the real BOQ accounts for RAID 6 (recommended for arrays > 24 TB to handle dual-disk failure during rebuild).
Network: 32 cameras at this profile push roughly 128 Mbps aggregate to the NVR — the switch and the storage NIC need to comfortably absorb that with overhead. Plan for a dedicated CCTV VLAN.
Engineering notes: in factories with welding / strong EMI, IP-rated cameras and shielded patch cables are mandatory, neither of which the calculator surfaces. AMC is also non-negotiable at this storage scale — drive replacement is a when-not-if.
What this preset deliberately does not solve
- Continuous recording (not motion-triggered) is the industrial norm — 2× the motion-only storage.
- RAID 6 is recommended above 24 TB array size to survive dual-disk failure during rebuild.
- AMC + drive replacement budget is a separate, mandatory TCO line.
How this preset differs from its siblings
The retail sibling preset uses motion-triggered recording and a 30-day retention window — both acceptable for loss-prevention where the evidence requirement is incident-level. This preset's distinguishing constraint is continuous recording (industrial process audit needs every frame, not just movement events) and a 90-day retention window that aligns with batch/quality investigation cycles and Indian state injury-claim filing windows. The result is a storage envelope an order of magnitude larger — and a network and RAID architecture conversation that the retail preset doesn't need.
03 / Hydrated calculator
Try the configuration — live.
The calculator below is preloaded with this preset’s state. Adjust any input — your URL stays shareable.
— Calculator · CCTV storage retention
Cameras, codec, retention — storage estimated.
Pick a camera brand and model, recording schedule and retention window. The calculator returns storage volume, HDD plan, recorded bandwidth and an NVR / VMS class recommendation. Sources cited per profile.
Storage estimated
147
TB · 90-day retention
Recorded bandwidth
128
Mbps to NVR / VMS
Architecture
Pro NVR
Mid NVR (16-32 channel)
Indicative planning figure on the H.265+ bitrate assumption above — real recording rate varies with scene activity, motion and lighting. Confirm against a site survey and a test-recording sample before sizing the final storage array.
A planning link — not a quote.
- camera
- Dahua IPC-HFW2449S Starlight 4MP
- resolution
- 2688 × 1520 (4MP)
- codec
- H.265+ · 25 fps
- bitrate
- 4 Mbps per camera
- duty
- 24/7 continuous
- bandwidth
- live 128.0 Mbps · recorded 128.0 Mbps
- 8 TB drives
- 19 drives
- 10 TB drives
- 15 drives
- 16 TB drives
- 10 drives
Mid-tier 4MP Starlight workhorse. Strong low-light performance with conservative bitrate.
What changes this estimate
- Scene activity & motion in the actual footage
- Final camera codec & bitrate ladder
- Retention policy confirmed with the client
- Test-recording sample on site
Feasibility
Storage requires 19+ 8 TB drives in a single enclosure. Plan a JBOD shelf, SAN or VMS distributed-storage architecture.
A planning link — not a quote.
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