CCTV tool suite

Storage Calculator

Calculate based on storage needed or with a designated capacity.

8 cameras

~2.0 Mbps (1.4–2.6) estimated

Group total

~16 Mbps · ~173 GB/day

Storage settings

Storage required

Estimated

5.8 TB

likely 4.0–7.5 TB

Required drives

3 × 14 TB drives

RAID 5

Sized for the high estimate

Raw capacity · 42 TB

  • Camera group 16.7 TB
  • Reserve2.8 TB
  • RAID parity14 TB
  • Unused18.5 TB
Total bitrate
~16 Mbps
11.2–20.8 Mbps
Daily write
~0.17 TB/day
0.12–0.22 TB/day
Drives
3 × 14 TB
RAID 5
Usable capacity
28 TB
42 TB raw

Capacities are decimal TB (10¹² bytes), as printed on drives. Recorders and operating systems may show less because they use binary units.

Storage required

5.8 TB · likely 4.0–7.5 TB

Storage calculation summary

CCTV tool suite · Storage needed

Storage required Estimated

5.8 TB

likely 4.0–7.5 TB

3 × 14 TB drives, RAID 5 · sized for the high estimate

Total bitrate
~16 Mbps (11.2–20.8)
Daily write
~0.17 TB/day (0.12–0.22)
Retention target
30 days
Usable capacity
28 TB

Capacity breakdown

SegmentCapacityShare of raw
Footage: Camera group 16.7 TB16%
Reserve2.8 TB7%
RAID parity14 TB33%
Unused18.5 TB44%
Raw capacity42 TB100%

Camera groups

GroupCamerasCameraSceneRecordingBitrate per cameraGroup totalPer day
Camera group 184MP (1440p) · H.265 · 15 fpsMediumContinuous~2.0 Mbps est. (1.4–2.6)~16 Mbps~173 GB

Storage settings

Retention target
30 days
Drive size
14 TB
RAID
RAID 5
Reserve
10%

Notes

  • Capacities are decimal TB (10¹² bytes), as printed on drives. Recorders and operating systems may show less because they use binary units.
  • Bitrates marked "est." are planning estimates; real bitrate varies with scene, night/IR and camera model. Use measured averages or configured bitrate caps for the most reliable results.
  • The estimates currently use preliminary placeholder values that have not been validated against measured cameras.