RAID Calculator

Estimate usable capacity, fault tolerance, parity overhead, and efficiency for common RAID layouts.

Storage Planner

Array configuration

Results

Capacity summary

Balanced parity array
Usable capacity 24 TB Space available for data
Raw capacity 32 TB Total installed storage
Redundancy overhead 8 TB Parity or mirror overhead
Efficiency 75% Usable vs installed capacity
Fault tolerance 1 drive Drives that may fail safely
Active drives 4 Drives participating in the array

Notes

RAID 5 offers a good balance between capacity efficiency and single-drive fault tolerance.