Hello
I faced with a new issue.
I have ubuntu 18.10 zfs root raidz created on four disks.
If I connect the disks to one controller for instance Intel SATA grub can find the zfs pool and can boot but if I connect the disk to different controllers for instance two disks to Intel SATA and other two disks to Marvell SATA grub cannot find zfs pool and I see grub prompt after restart.
I have also tried to boot manually from grub prompt but if I do ls (hd0,gpt2)/ I'm getting error: unknown filesystem

Any idea how to resolve the issue?