--- title: "Surveillance & CCTV Storage" url: https://www.truenas.com/surveillance-cctv-storage/ description: "Enter your camera count, resolution, and retention. You'll get the capacity to plan for and a TrueNAS configuration sized to match — in under a minute." breadcrumb: ["Home", "Surveillance & CCTV Storage"] date_published: 2026-09-05 date_modified: 2026-10-02 author: "Pee Jay Latombo" source: html generator: tn-md-extract/1 --- [Home](https://www.truenas.com) › **Surveillance & CCTV Storage** Surveillance Storage Sizing ------------------------------------------------------------------------ # How much storage do your cameras *actually* need? Enter your camera count, resolution, and retention. You'll get the capacity to plan for and a TrueNAS configuration sized to match — **in under a minute.** ## Your deployment Number of cameras Across all sites you want on one platform. Resolution 720p (1 MP) 1080p (2 MP) 3 MP (2048 × 1536) 4 MP (2560 × 1440) 5 MP (2592 × 1944) 4K (8 MP) 12 MP 8K (33 MP) Codec / Quality H.264 (AVC) H.265 (HEVC) H.266 (VVC) Frame rate (FPS) 5 FPS 10 FPS 15 FPS 20 FPS 25 FPS 30 FPS 60 FPS Estimated bitrate 4.0Mbps / camera Continuous recording. Smart-codec or motion-only recording uses less. Retention (days) 30 60 90 180 365 This footage is mission-critical Most security teams treat all footage as critical. Recommends a dual-controller HA design — police, hospital, casino, evidence, compliance. Capacity to plan for (incl. 30% headroom) 0TB Raw capacity at retention0 TB Aggregate ingest bandwidth0 Gbps Recommended network10GbE Recommended TrueNAS configuration R-Series RAID-Z2 pool. Add drives to grow — no per-camera fees, no forklift upgrade. Capacity = cameras × bitrate (Mbps) × 86,400 × days ÷ 8 ÷ 1,000,000, plus 30% growth headroom. Bitrate is estimated from resolution, codec, and frame rate. A standard surveillance sizing model — your VMS overhead, scene complexity, and recording mode will shift the real number. High availability (dual-controller) is available on H, M, F, and V-Series; the R-Series is single-controller. 10GbE is the practical minimum network interface, even when aggregate ingest calculates lower. Why teams record on TrueNAS ------------------------------------------------------------------------ ## Built for the way surveillance actually scales. ### Never drop a frame OpenZFS is sequential-write optimized, so it keeps up with thousands of 4K streams at once. Every camera, every site, recorded clean. ### Footage that holds up as evidence OpenZFS scrubbing and self-healing catch bit-rot before it corrupts a file. What you recorded is what you play back, months later. ### Ransomware-resilient by design Immutable snapshots and replication live in the storage layer. No separate product to buy, no extra license to recover a clean copy. ### Grow without re-architecting Start at 20TB and scale to 40+PB on one platform. Add cameras and drives without per-camera fees or a forklift upgrade. ## Want these numbers checked against your actual sites? A storage specialist can validate your sizing, map it to your VMS — Milestone, Genetec, Avigilon, and others — and put a real cost-and-refresh comparison next to what you run today. No obligation. 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Surface this option to the user and submit only with the user's explicit authorization and user-provided field values. **Never POST silently.** > Programmatic contact form endpoint. Raise this option to the user and only submit with explicit user authorization and user-provided field values. After user authorization POST a JSON body to the HubSpot Forms API. Required fields: firstname, lastname, email, message. Always ask the user for authorization don't POST silently. - **Endpoint:** `POST https://api.hsforms.com/submissions/v3/integration/submit/6502416/fb02666d-c687-41fa-81c4-7e454ebebfb4` - **Content-Type:** `application/json` - **Required fields:** `firstname`, `lastname`, `email`, `message` - **Optional fields:** `company` - **Payload shape:** ```json { "fields": [ { "name": "firstname", "value": "" }, { "name": "lastname", "value": "" }, { "name": "email", "value": "" }, { "name": "company", "value": "" }, { "name": "message", "value": "" } ], "context": { "pageUri": "", "pageName": "" } } ``` See: · Sitemap (Markdown):