Optimize your server's data storage with our free online RAID Calculator. Quickly determine the usable disk space, parity requirements, and the number of drives needed for popular RAID levels like 0, 1, 5, 6, and 10. Ensure optimal data redundancy and performance planning for your critical systems, whether for home or enterprise use.
Formula:
This calculator determines usable storage capacity and parity overhead based on your RAID level, number of drives, and individual drive size.
Variables:
- N = Number of Drives
- S = Size of Each Drive
Simplified Logic for Common RAID Levels:
- RAID 0 (Striping): Usable Capacity = N × S
- RAID 1 (Mirroring): Usable Capacity = S (requires minimum 2 drives)
- RAID 5 (Striping with Parity): Usable Capacity = (N - 1) × S
- RAID 6 (Striping with Dual Parity): Usable Capacity = (N - 2) × S
- RAID 10 (Striped Mirrors): Usable Capacity = (N / 2) × S (requires even number of drives, minimum 4)