Soon™️ 6.12 Series
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Our plan is to release a public beta soon(tm) which includes OpenZFS support and changes which Plugin authors need to be aware of. Posting this now as a sneak peak, more detail will follow. That said....
ZFS support: this will let you create a named pool similar to how you can create named btrfs pools today. You will have choice of various zfs topologies depending on how many devices are in the pool. We will support single 2, 3, and 4-way mirrors, as well as groups of such mirror
Some clarification...
Currently:
We have a single "unRAID" array(*) and multiple user-defined "cache pools", or simply "pools". Data devices in the unRAID array can be formatted with xfs, btrfs, or reiserfs file system.
A pool can consist of a single slot, in which case you can select xfs or btrfs as the file system. Multi-slot pools can only be btrfs. What's unique about btrfs is that you can have a "raid-1" with an odd number of devices.
With 6.12 release:
More clarifications: in Unraid OS only user-defined pools can be configured as multi-device ZFS pools. You can select ZFS as the file system type for an unRAID array disk, but will always be just a single device. The best way to think of this, anywhere you can select btrfs you can also select zfs, including 'zfs - encrypted' which is not using zfs built-in encryption but simply LUKS device encryption.
Also note that ZFS hard drive pools will require all devices in a pool to be 'sp
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