So here we see multipath is indeed considering it to be one disk:
mpatha (eui.6479a73730830210) dm-0 NVME,Force MP600 size=932G features='0' hwhandler='0' wp=rw |-+- policy='service-time 0' prio=0 status=active | `- 0:1:1:1 nvme0n1 259:0 active undef running `-+- policy='service-time 0' prio=0 status=enabled `- 2:1:1:1 nvme2n1 259:2 active undef running
So here we see multipath is indeed considering it to be one disk:
mpatha (eui.6479a73730 830210) dm-0 NVME,Force MP600 'service- time 0' prio=0 status=active 'service- time 0' prio=0 status=enabled
size=932G features='0' hwhandler='0' wp=rw
|-+- policy=
| `- 0:1:1:1 nvme0n1 259:0 active undef running
`-+- policy=
`- 2:1:1:1 nvme2n1 259:2 active undef running