RAID Capacity Calculator

This RAID calculator computes storage system characteristics based on the RAID configuration, the number of disk drives, and the 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: 


RAID Type: RAID0 (Stripe set)

Total usable storage capacity (GB) = 600
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)
RAID IO penalty (read) = 1/1 (one RAID IO per each host IO)
RAID IO penalty (write) = 1/1 (one RAID IO per each host IO)

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


See also:
RAID Performance Calculator
RAID Reliability Calculator