https://community.ibm.com/community/user/power/blogs/jim-allen1/2020/11/09/installing-aix-on-an-fc-nvme-disk

Requirements:

• SVC/v7000 v8.4.0 min
• AIX 7.2 TL 5 and AIX 7.3
• Power 9 host (with FW 950 or later) or Power 10 host (FW 1010 or later)
• FC-NVMe disks required SAN switch attached
• support only provided for 32Gb FC adapters (EN1A, EN1B), which have at least the 12.4.257.30 (FCode level 12.8.9) adapter firmware level.
• This is not supported via NPIV from an AIX LPAR: instead the FC adapter must be assigned to the AIX LPAR.

# lsattr -El fcnvme0
attach switch How this adapter is connected False
autoconfig available Configuration State True
host_nqn nqn.2018-04.com.ibm:aix.fc.pn.0x100000109b2189fa.nn.0x200000109b2189fa Host NQN (NVMe Qualified Name) True 

List NVME disks on an adapter

[root@vios101]/home/padmin# nvmemgr -Sl nvme0
----------------------------------------------------------------
Name             Location             State            Size
----------------------------------------------------------------
nvme0            04-00                Available        800.17GB        
  hdisk0         04-00                Available        800.17GB