RAID Calculator
RAID calculator — compute usable storage capacity, fault tolerance and efficiency for RAID 0, 1, 5, 6, 10, 50 and 60. Free online RAID planning tool.
RAID 0 Striping
RAID 1 Mirroring
RAID 5 Parity
RAID 6 Dual Parity
RAID 10 Mirror+Stripe
RAID 50 RAID 5+0
RAID 60 RAID 6+0
Usable Capacity —
Raw Capacity —
Overhead —
Fault Tolerance —
Storage Efficiency
Usable vs Raw —
Usable: — Raw: —
Drive Layout
Data Parity Mirror