Originally developed by Sun Microsystems, ZFS storage is a combination filesystem and LVM, providing high-capacity storage with important features, such as data protection, data compression, self healing, and snapshots. ZFS has a built-in software defined RAID, which makes the use of a hardware-based RAID unnecessary. A disk array with ZFS RAID can be migrated to a completely different node without rebuilding the entire array.
Note
For more details on ZFS, visit http://en.wikipedia.org/wiki/ZFS.
As of Proxmox VE 3.4, a ZFS storage plugin is included, which leverages the use of ZFS natively in Proxmox cluster nodes. A ZFS pool supports the following RAID types:
RAID type |
Minimum requirement |
---|---|
RAID-0 pool |
1 disks |
RAID-1 pool |
2 disks |
RAID-10 pool |
4 disks |
RAIDZ-1 pool |
3 disks |
RAIDZ-2 pool |
4 disks |
We can store only the .raw
format virtual disk images on ZFS storage.