PrismKitCalculatorsRAID Reliability CalculatorRAID Reliability CalculatorRuns in your browserLocalCopy linkMarkdownEstimate mean time to data loss and the chance of losing data for RAID 5, 6, 10 and RAIDZ arrays.ZFS Pool CalculatorCalculate raw and usable ZFS pool capacity for stripe, mirror and RAIDZ vdev layouts, with slop space and fault tolerance.TTL CalculatorConvert DNS and cache TTLs between seconds and human durations and see when they expire.