# zpool import -a -F -d /dev/nvme2n1p1 -d /dev/nvme3n1p1
cannot import 'backup': pool was previously in use from another system.
Last accessed by ... (hostid=xxx) at Tue Dec 21 11:31:08 2021
The pool can be imported, use 'zpool import -f' to import the pool.
# zpool import -a -f -d /dev/nvme2n1p1 -d /dev/nvme3n1p1
Sikerült!
Köszönöm!