ZFS with OMV7 rpi4

I wanted to have a try ZFS on OMV7 for second disk.

I installed plugin zfs, but after wiping the disk it is still not showing any device in Storage->zfs->add pool or add filesystem is grey out.

I started to read more and it looks that I need to install also proxmox kernel but I see no gui way to do it like in all tutorials - is it no longer available, or I can install via terminal somehow?

ok... is there any particular reason why it's not good for pi? other platform (like PCs) are ok?

What I wanted to test is stability on power loss. I have already switched ext4 to data=journal, but it is paid with huge loss of write performance.

I've read that ZFS is writing first new version then change previous as old. I see that bfrfs is doing the same...

Quote from ryecoaaron

The plugin will not allow you to create arrays using USB disks. Since the RPi4 can only connect usb disks, you will not be able to use it.

aa so it's about USB interface?

Quote from Soma

There's no such thing in any FS.

If drives are being written and power is cut, corruption will occur.

Only way to prevent it is by having redundancy on the energy: read UPS to gracefully powerdown the server.

corruption will occur but previous copy shall be maintained, right?

I know that the best option is no power down - e.g. UPS