ZFS RAIDZ2 Calculator
ZFS's double parity, like RAID 6. A common default for Proxmox storage pools. 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 RAIDZ2 at a glance
Minimum Disks4
Usable With 6 Disks4 of 6 disks
Survives2 disks
Example (6 × 8 TB)32 TB usable
ZFS's double parity, like RAID 6. A common default for Proxmox storage pools.
RAID Levels and Units
Questions
How much usable space does ZFS RAIDZ2 give?
With n equal disks: n − 2 disks. 6 × 8 TB gives 32 TB.
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