An open source interactive web-based tool to estimate read/write performance, usable storage capacity, and fault tolerance for common RAID and ZFS configurations.
License: MIT — free to use, share, and modify. See the LICENSE file for details.
- RAID 0, 1, 5, 6, 10
- RAIDZ1, RAIDZ2, RAIDZ3 (ZFS)
- Performance Estimation — Calculates read & write speed multipliers based on drive count and RAID type
- Capacity Calculation — Estimates usable capacity after parity/reserve space
- Fault Tolerance Overview — Shows how many drives can fail without data loss
- Visual Comparison — Generates charts for quick analysis
- Drive Type Presets — Supports HDD, SSD, and NVMe workloads (sequential vs. random)
- Beginner Friendly — Simple UI, no installation required
- MIT Licensed — 100% open source, contributions welcome
Enter:
- Number of drives
- Drive size
- Workload type (Sequential or Random)
The calculator outputs:
- Read speed multiplier
- Write speed multiplier
- Total usable storage
- Fault tolerance rating
git clone https://github.com/bradgarrison/raid-performance-calculator.git
cd raid-performance-calculator
open index.html