RAID Capacity Calculator

This RAID calculator computes storage system characteristics based on the provided RAID level, number of disk drives, and drive capacity.
Supported RAID levels are RAID 0, RAID 1, RAID 4, RAID 5, RAID 6, RAID 10 (1+0), RAID-DP, and ZFS RAIDs (RAID-Z1, RAID-Z2, RAID-Z3).

RAID Type:
Drive Capacity (GB):
Number of drives in a RAID group: 
Number of RAID groups:
Compare two configurations...


Total usable storage capacity (GB) = 600 Calculate performance...

RAID Type: RAID0 (Stripe set)
Number of RAID groups = 1
Number of drives per RAID group = 2
Total number of drives = 2
Drive capacity (GB) = 300
Capacity of a single RAID group (GB) = 600

Space efficiency = 1 (100%)
Fault tolerance = 0 disk drives (none)
IO penalty (read) = 1/1 (one RAID IO per each host IO)
IO penalty (write) = 1/1 (one RAID IO per each host IO)

Minimum number of drives per RAID0 group = 2.
RAID0 is not recommended for data with any business value.