Hello, I have env1 and env2, both in 4.3 and both configured as single host HCI environments. On both I have the predefined hosted_storage, data and vmstore gluster storage domains. On env1 I have hosted_storage and data on a disk, and vmstore on a whole different disk. I also have a "big2" gluster storage domain created in another disk in a second time. I want to scratch env1 but preserve and then import vmstore and big2 storage domains in env2 This "big2" is configured as a PV on the whole 4Tb disk on env1. - nvme1n1 4Tb gluster_vg_4t2 serial: BTLF72840DVK4P0DGN eui.01000000010000005cd2e45c02de4d51 dm-3 NVME,INTEL SSDPEDKX040T7 size=3.6T features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='service-time 0' prio=0 status=active `- 1:0:1:0 nvme1n1 259:3 active undef running [root@ovirt ~]# pvs /dev/mapper/eui.01000000010000005cd2e45c02de4d51 PV VG Fmt Attr PSize PFree /dev/mapper/eui.01000000010000005cd2e45c02de4d51 gluster_vg_4t2 lvm2 a-- <3.64t 0 [root@ovirt ~]# [root@ovirt ~]# lvs gluster_vg_4t2 LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert gluster_lv_big2 gluster_vg_4t2 Vwi-aot--- <4.35t my_pool 1.36 my_pool gluster_vg_4t2 twi-aot--- <3.61t 1.64 0.18 [root@ovirt ~]# In similar way the vmstore storage domain has: - nvme2n1 1Tb gluster_vg_nvme1n1 serial: PHLF8125037R1P0GGN eui.01000000010000005cd2e4e359284f51 dm-1 NVME,INTEL SSDPE2KX010T7 size=932G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='service-time 0' prio=0 status=active `- 2:0:1:0 nvme2n1 259:2 active undef running [root@ovirt ~]# pvs /dev/mapper/eui.01000000010000005cd2e4e359284f51 PV VG Fmt Attr PSize PFree /dev/mapper/eui.01000000010000005cd2e4e359284f51 gluster_vg_nvme1n1 lvm2 a-- 931.51g 0 [root@ovirt ~]# [root@ovirt ~]# lvs gluster_vg_nvme1n1 LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert gluster_lv_vmstore gluster_vg_nvme1n1 Vwi-aot--- 930.00g gluster_thinpool_gluster_vg_nvme1n1 63.99 gluster_thinpool_gluster_vg_nvme1n1 gluster_vg_nvme1n1 twi-aot--- 921.51g 64.58 1.80 [root@ovirt ~]# I presume the correct way is: - env1 delete and detach vmstore and big2 (without formatting/zeroing) - env2 attach the two disks to the system and then? What should I do at gluster commands level to "import" the already setup gluster bricks/volumes and then at oVirt side to import the corresponding storage domain? BTW: can I import the previous storage domain named "vmstore" giving anothe r name such as vmstore2, not to create conflict with already existing "vmstore" storage domain or the name is hard coded when importing and creating possible conflict? Thanks, Gianluca