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ZFS Capacity Calculator

Determine the usable capacity and other metrics of a ZFS storage pool and compare layouts including stripe, mirror, RAIDZ1, RAIDZ2, RAIDZ3, and dRAID.

Click on the section titles to expand/collapse and view calculated data. Hovering over a table cell loads the relevant data into the Calculation Values section below. You can click table cells to freeze or unfreeze those values.

Common Layouts
Raw, Stripes, & Mirrors
RAIDZ1
RAIDZ2
RAIDZ3
dRAID

Calculation Values

(Click table cells above to freeze/unfreeze)

ZFS Capacity Calculator originally created by Jason Rose.