X-OCN XT storage requirements
One hour of X-OCN XT in UHD at 25p takes 729 GB. The table below runs the numbers for every common resolution and frame rate — including how many cards and how much backup volume a shoot day actually needs.
Footage Storage Calculator
- Footage per day
- —
- With all copies
- —
- Cards needed
- —
- Offload time (1 copy)
- —
Data rates: ProRes/DNxHR are per-frame constants from the Apple/Avid specs; RAW derives from resolution × bytes/pixel (nominal). Details further down this page.
X-OCN XT: GB per hour
X-OCN XT is a RAW format: data volume follows from resolution × 1 bytes per pixel per frame (nominal, derived from the manufacturer spec) × frame rate. Content-adaptive compression can land slightly below — you budget the nominal value, because the card has to survive the busiest take.
| Resolution | 24p | 25p | 30p | 50p | 60p |
|---|---|---|---|---|---|
| HD 1920×1080 | 175 | 182 | 219 | 365 | 437 |
| UHD 3840×2160 | 700 | 729 | 875 | 1,458 | 1,750 |
| 4K DCI 4096×2160 | 746 | 778 | 933 | 1,555 | 1,866 |
| 6K 6144×3240 | 1,680 | 1,750 | 2,100 | 3,499 | 4,199 |
| 8K 8192×4320 | 2,986 | 3,110 | 3,732 | 6,221 | 7,465 |
From GB to a shoot day
A typical shoot day produces 2–4 hours of footage per camera. At X-OCN XT in UHD 25p that is 1,458–2,916 GB per camera — before copies. With 3-2-1 backup (three copies) it multiplies to 6.4 TB per three hours of material. The table runs three full shoot-day scenarios:
| Footage | Raw data | 1 TB cards | 3-2-1 volume | Offload per copy (400 MB/s) |
|---|---|---|---|---|
| 2 h | 1.42 TB | 2 | 4.27 TB | 1 h 2 min |
| 4 h | 2.85 TB | 3 | 8.54 TB | 2 h 4 min |
| 8 h | 5.70 TB | 6 | 17.09 TB | 4 h 9 min |
Planning offload and backup
Cards are the second calculation: the calculator on the main page derives card count from daily volume and card size — including the spare that stays locked while offloading.
In the schedule this number belongs in two places: as a card budget on the equipment list and as an offload window in the day plan. TillyGen keeps both in the same plan — change the shooting hours and the offload window moves with them.
Frequently asked
How much storage does 1 hour of X-OCN XT need?
In UHD at 25p: 729 GB. At 50p, double that. Every resolution is in the table above.
Are the numbers exact?
RAW rates are manufacturer nominal values; content-adaptive compression can land slightly below. For capacity planning, use the nominal value plus 10 % headroom.