ZFS RAIDZ3 Calculator
Triple parity, for very wide arrays of very large disks. Enter your disks below to see the usable space.
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RAID Level
Enter the number of disks and their size.
Disk Space & RAID Calculator
ZFS RAIDZ3 at a glance
Minimum Disks5
Usable With 6 Disks3 of 6 disks
Survives3 disks
Example (6 × 8 TB)24 TB usable
Triple parity, for very wide arrays of very large disks.
RAID Levels and Units
Questions
How much usable space does ZFS RAIDZ3 give?
With n equal disks: n − 3 disks. 6 × 8 TB gives 24 TB.
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