RAID Capacity Planner

Calculate usable capacity, storage efficiency and estimated rebuild time for any RAID level.

Drive Configuration

Number of drives: 6

Drive capacity (TB)

Drive type

Throughput (MB/s)

Usable Capacity

48.0TB

Storage Efficiency

66.7%

Fault Tolerance

2 drives

Rebuild Time

174 hours 46 minutes

Raw Capacity72TB

Overhead24TB

Usable48TB

Overhead %33.3%

Critical

Rebuild exceeds 24 hours. Strongly consider RAID 6 or RAID 60 for dual-drive fault tolerance.

During rebuild, a second drive failure causes complete data loss.

RAID	Usable	Efficiency	Fault Tolerance	Rebuild
RAID 0	72.0TB	100.0%	None	N/A
RAID 1	12.0TB	16.7%	5 drive(s)	43 hours 41 minutes
RAID 5	60.0TB	83.3%	1 drive	218 hours 27 minutes
RAID 6	48.0TB	66.7%	2 drives	174 hours 46 minutes
RAID 10	36.0TB	50.0%	1 per mirror pair	131 hours 4 minutes
RAID 50	48.0TB	66.7%	1 per group	174 hours 46 minutes