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— CCTV Storage · 8MP

Dahua IPC-HFW5849T1-ASE-LED (8MP TiOC) storage & retention

Problem. Sizing storage for a fleet of the Dahua IPC-HFW5849T1-ASE-LED (8MP TiOC) is not a guessing exercise once resolution, codec, and frame rate are fixed. The real decision is how many days of continuous 8MP footage a site needs to retain, and what head-end class of NVR that retention actually demands.

Answer. For 16 cameras recording continuously (24/7) at 30-day retention, this model works out to roughly 41 TB of total storage, or about 86 GB per camera per day. At that camera count, the resulting head-end sits comfortably in the Entry NVR architecture class.

02 / In depth

How this preset reads — the engineering view.

At 8MP, this camera's typical H.265+ stream runs around 8 Mbps at 25 fps, which is the single biggest lever in the storage sum. That works out to roughly 86 GB per camera per day of continuous recording. H.265+ is a smart codec that suppresses redundant data in static scene regions between keyframes, so it holds this 8MP stream well below what plain H.264 would need for the same resolution and frame rate.

Scaling is linear from that per-camera figure: 16 cameras x 86 GB/day x 30 days works out to approximately 41 TB of raw storage. Add more cameras or extend retention and the total moves in direct proportion — doubling either roughly doubles the storage. At 16 cameras, the recording head-end for this workload falls into the Entry NVR class, before any RAID or redundancy is added.

In the calculator, drag the camera count and retention-days sliders and switch the recording schedule to see the storage total recompute live for this exact model. Selecting a motion-only or scheduled-recording profile applies a duty factor that reduces effective recording hours per day, which lowers the total well below the continuous 24/7 figure shown here.

The calculator sizes raw storage capacity only. It does not decide real scene-activity bitrate variance (a busy street scene will exceed the 8 Mbps average, a static corridor will fall under it), RAID or redundancy overhead, failover or long-term archive tiering, network write-bandwidth limits across the fleet, or the exact drive make-up and count for the resulting capacity — those remain site-specific engineering decisions.

What this preset deliberately does not solve

  • The 8 Mbps figure is a typical scene-average bitrate for this model; real footage varies with motion, lighting, and compression complexity in the frame.
  • This preset assumes continuous 24/7 recording; switching to motion-only or scheduled recording in the calculator reduces effective daily storage through a duty-factor adjustment.
  • The 41 TB figure is raw storage capacity only and does not include RAID, redundancy, or backup/archive overhead, which add to the physical drive plan.

How this preset differs from its siblings

This camera's 8MP sensor and 8 Mbps H.265+ stream sit well above typical 2MP or 4MP models, so its per-camera storage draw (about 86 GB/day) is proportionally higher even with an efficient smart codec applied. A lower-resolution camera at the same frame rate and codec would need noticeably less storage per day, which is why this page exists as its own preset rather than being folded into a generic 8MP or 4MP entry — the exact bitrate and resolution pairing changes the 41 TB result meaningfully.

03 / Hydrated calculator

Try the configuration — live.

The calculator below is preloaded with this preset’s state. Adjust any input — your URL stays shareable.

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