RAID Capacity Calculator
Calculate usable storage capacity for RAID 0, 1, 5, 6, and 10 configurations. Understand redundancy and fault tolerance for your storage setup.
How to Use the RAID Capacity Calculator
- Enter the number of drives.
- Enter the size of each drive in TB.
- Select the RAID level.
- Click Calculate to see usable capacity and fault tolerance.
使用场景
- •Planning NAS or SAN storage configurations.
- •Comparing RAID levels for home lab setups.
- •Sizing enterprise storage for backup systems.
- •Calculating effective storage cost per usable TB.
公式
RAID 0: n×disk. RAID 1: 1×disk. RAID 5: (n−1)×disk. RAID 6: (n−2)×disk. RAID 10: (n/2)×disk.
常见问题
Which RAID level gives most capacity?
RAID 0 gives full capacity but no redundancy. RAID 5 offers a good balance of capacity and protection.
How many drives can fail in RAID 6?
RAID 6 can tolerate 2 simultaneous drive failures.
What is RAID 10?
RAID 10 mirrors drives in pairs (RAID 1) then stripes across pairs (RAID 0), requiring minimum 4 drives.