RAID 0 Capacity Calculator
Calculate total usable capacity and performance of a RAID 0 striped array.
Inputs
Usable Capacity
8,000.00GB
Raw Capacity
8,000.00GB
Redundancy Overhead
0.00GB
Storage Efficiency
100.00%
Fault Tolerance
None — any single disk failure destroys all data
Step by step
Disk count (n)
4
= 4
Disk size
2000 GB
= 2000 GB
RAID 0 usable capacity
n × size = 4 × 2000
= 8000 GB
Storage efficiency
100% (no redundancy)
= 100%
How it works
RAID 0 stripes data across all disks with no parity or mirroring, so 100% of the raw capacity is usable. While this maximizes storage efficiency and sequential throughput, it provides zero fault tolerance — any single disk failure results in total data loss across the entire array.
Formula
RAID 0 usable capacity
usable = n × disk_size
- n
- number of disks
- S
- capacity per disk
Frequently Asked Questions
When should I use RAID 0?
RAID 0 is suitable for scratch/temp data, caches, or workloads where performance matters and the data is easily recreatable — never for data you cannot afford to lose.
Does RAID 0 improve performance?
Yes. Read and write throughput scales roughly linearly with disk count because I/O is spread across all members simultaneously, making it the fastest RAID level for sequential workloads.