Topic

Storage tools

RAID planning and storage capacity tools. 4 free tools, browser-based, no sign-up.

No sign-up No tracking 4 tools

All storage tools

NAS / RAID Storage Calculator

Calculate usable capacity for RAID 0/1/5/6/10, ZFS RAIDZ1/2/3, Unraid, SHR, and SHR-2. Supports equal and mixed drive sizes.

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RAID Rebuild Time Estimator

Enter your drive size, RAID type, and throughput to estimate rebuild time and your risk window. Includes presets for common NAS drives.

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Storage Capacity Growth Forecaster

Enter current usage and a growth rate to see when storage hits a full threshold — months remaining, a projected date, and a month-by-month table.

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ZFS Pool Capacity Calculator

Calculate usable ZFS pool capacity for stripe, mirror, RAIDZ1/2/3 vdevs — raw vs usable capacity, parity overhead, and how many drives can fail.

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