PrismKitCalculatorsZFS Pool CalculatorZFS Pool CalculatorRuns in your browserLocalCopy linkMarkdownCalculate raw and usable ZFS pool capacity for stripe, mirror and RAIDZ vdev layouts, with slop space and fault tolerance.Disk Capacity CalculatorSee how much space a TB or GB drive really shows in your OS, with filesystem overhead and a table of common sizes.RAID Reliability CalculatorEstimate mean time to data loss and the chance of losing data for RAID 5, 6, 10 and RAIDZ arrays.