Hi
I use OMV 4.0 because I thought it makes more sense to directly jumpt to debian 9.1 insteat of "older" v8.
So far I am not having any serious issue and I would be fine to just keep it running this way until OMV 4 is stable.
One thing I noticed however with ZFS is that after a reboot the ZFS array won't mount. When I try to mount it via "zfs mount -a" the error message is "/ZFSPool1 isn't empty" and that is true as it is filled with the folders of my ZFS array but all of them are empty. After I delete the contents via "rm -r *" I can finally mount the ZFS array an all is good.
Anyone else having this?