— 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.
— 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
51.4
TB · 30-day retention
Recorded bandwidth
128
Mbps to NVR / VMS
Architecture
Entry NVR
Entry NVR (8–16 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-HFW5849T1 TiOC 8MP
- resolution
- 3840 × 2160 (8MP)
- codec
- H.265+ · 25 fps
- bitrate
- 8 Mbps per camera
- duty
- 24/7 continuous
- bandwidth
- live 128.0 Mbps · recorded 128.0 Mbps
- 8 TB drives
- 7 drives
- 10 TB drives
- 6 drives
- 16 TB drives
- 4 drives
Premium 4K WizMind with on-camera AI. H.265+ bitrate is conservative; smart-codec modes can drop further.
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
A planning link — not a quote.
· Other presets for cctv storage retention calculator
CCTV Storage · Retail
Retail store — 16 cameras, 30-day retention
A retail store with 16 4MP H.265 cameras needs 30 days of continuous recording for loss-prevention and incident review.
CCTV Storage · Industrial
Manufacturing facility — 32 cameras, 90-day retention
A manufacturing facility with 32 cameras at 4MP H.265+ needs 90-day continuous retention for safety-incident review and process audit.
CCTV Storage · 8MP
Hikvision DS-2CD2387G2-LU (ColorVu 8MP) storage & retention
A fleet of Hikvision DS-2CD2387G2-LU (ColorVu 8MP) cameras generates far more footage per day than a lower-resolution camera, so storage sizing has to start from this camera's actual bitrate rather than a generic rule of thumb. Get the drive capacity wrong at design stage and a 30-day retention promise quietly shrinks the moment continuous recording begins.
CCTV Storage · 4MP
Hikvision DS-2CD2143G2-I (4MP Dome): storage & retention
A fleet built around the Hikvision DS-2CD2143G2-I (AcuSense 4MP Dome) puts a real number on what 30-day continuous retention costs in raw storage, and that number is easy to underestimate at 4MP. The right question is not just how large a single camera's footage is, but how the count of cameras, the retention window and the recording schedule compound into a head-end and drive plan.
CCTV Storage · 8MP
Hikvision DS-2CD2T87G2-L (ColorVu 8MP) storage & retention
A fleet of Hikvision DS-2CD2T87G2-L (ColorVu 8MP Bullet) cameras recording continuously puts real weight on the storage decision — 8MP frames at a typical 16 Mbps bitrate accumulate fast, and under-sizing the NVR is the single most common CCTV retrofit mistake. The question a buyer actually needs answered is how many terabytes a 30-day continuous-recording policy demands, and what class of head-end that quantity of storage implies.
CCTV Storage · 4MP
Hikvision DS-2DE4425IW-DE(T5) 4MP PTZ — storage & retention
A site standardising on the Hikvision DS-2DE4425IW-DE(T5) 4MP 25x PTZ needs to size an NVR and disk array before deciding how many cameras it can run and for how long, since a 25x PTZ's 4MP sensor at continuous frame rates writes meaningfully more data per day than a fixed 2MP dome.
CCTV Storage · 12MP
Dahua DH-IPC-EBW81242N (12MP Fisheye) storage & retention
A fleet of Dahua DH-IPC-EBW81242N (WizMind 12MP Fisheye) cameras generates far more data per hour than a typical 2MP or 4MP dome, so the real decision is not whether to record but how much NVR and drive capacity a 30-day retention policy actually demands. Getting the storage math wrong at design stage means either an under-built NVR that overwrites footage early, or an over-built one that wastes budget on capacity nobody needed.
CCTV Storage · 4MP
Dahua DH-IPC-HFW2431S-S-S2 (4MP) — storage & retention
A site standardising on the Dahua DH-IPC-HFW2431S-S-S2 (Lite 4MP IR Bullet) needs to know what a fleet of these cameras actually costs in storage terms before the NVR and drive array are specified. The real decision is not the camera — it is what 30 days of continuous recording across the fleet does to the head-end architecture.
CCTV Storage · 8MP
Axis P3268-LVE — storage & retention planning
An 8MP camera recording continuously produces a meaningfully larger daily file than the 2-4MP cameras most storage rules of thumb are written for, so a fleet-level estimate has to start from this camera's own bitrate rather than a generic assumption. Getting the per-camera-per-day figure right before specifying an NVR avoids under-sizing storage or over-buying a head-end class the fleet does not need.
CCTV Storage · 2MP
Axis AXIS P3245-LV (2MP) — storage & retention
A fleet of Axis AXIS P3245-LV (2MP) dome cameras recording continuously for 30 days needs a head-end sized before the NVR is ordered, not after. Getting the per-camera daily footprint wrong at the planning stage means a disk array that either runs out of retention early or sits over-provisioned.
CCTV Storage · 2MP
Axis Q6135-LE storage & retention (2MP, H.265)
A fleet of Axis Q6135-LE cameras recording continuously raises a straightforward but easy-to-underestimate question: how much usable storage does 30-day retention actually demand, and what class of head-end can hold it. Get the sizing wrong and a project either overspends on drive bays it does not need or runs out of retention days before the footage is reviewed.
CCTV Storage · 8MP
Hanwha Wisenet XNB-9002 (4K) storage & retention
An 8MP camera at H.265 shifts the storage conversation from 'how many terabytes' to 'how many camera-days'. Once a fleet of Hanwha Wisenet XNB-9002 (4K) units is set to continuous recording at a 30-day hold, the daily footprint per camera becomes the number that decides the whole head-end.
CCTV Storage · 8MP
Hanwha XNV-9083R (4K AI IR Vandal Dome) storage & retention
A fleet of Hanwha XNV-9083R 8MP vandal dome cameras recorded continuously raises a real storage-sizing question: how much usable capacity does 30 days of 24/7 recording actually need, and what class of NVR head-end that capacity implies.
CCTV Storage · 8MP
Bosch FLEXIDOME IP starlight 8000i (4K) storage & retention
An 8MP camera recording continuously generates far more footage than a 2MP or 4MP unit, so a fleet-wide storage and NVR plan needs to be sized around the actual bitrate this model produces, not a generic rule of thumb. Getting the 30-day retention figure right up front avoids a mid-project scramble to add drives or swap the head-end once real footage volumes show up.
CCTV Storage · 8MP
Uniview IPC2328SB-DZK-I0 (8MP) storage & retention
A fleet of Uniview IPC2328SB-DZK-I0 (8MP LightHunter) cameras generates far more footage per day than a 2MP or 4MP fleet, so the real decision is how much drive capacity and what NVR class a 30-day retention policy actually needs. Getting the storage math wrong at design stage means a mid-project drive upgrade or a head-end that cannot keep pace with continuous recording.
CCTV Storage · 5MP
Vivotek FD9389-HM (5MP Dome) storage & retention
A fleet of Vivotek FD9389-HM 5MP dome cameras recording continuously will fill a head-end far faster than the same count in 2MP, so the storage math has to be worked out before the NVR and disks are chosen. The real decision is not the camera itself but how many days of footage the site needs to keep at that resolution, since retention is what drives the drive count.
CCTV Storage · 8MP
Avigilon H6A Dome (8MP) storage & retention
A fleet of Avigilon H6A Dome (8MP) cameras generates far more footage per day than a standard-definition camera, so a 30-day retention target can quietly outgrow a modest NVR if storage is sized by guesswork. Getting the per-camera daily figure right before ordering hardware avoids either an under-sized head-end or an over-bought one.
CCTV Storage · 5MP
Milesight AI Mini Dome 5MP: storage & retention
A fleet of Milesight AI Mini Dome 5MP cameras generates meaningfully more footage per day than a 2MP or 4MP line, so sizing the NVR and drive pool around guesswork risks either wasted spend or a retention window that runs out early. The real decision is how many days of continuous 5MP footage a given camera count must hold, and what head-end class that implies.
· Next
Brief us on the project — with this configuration.
Presets are a typology starting point. The brief wizard captures the room geometry, programme and constraints we need to translate this configuration into a real design.
