Check vhost from LPAR...

Credit to:  aix4admins Blog

# echo "cvai" | kdb | grep vscsi
vscsi0 0x000007 0x0000000000 0x0 xxx-vios1->vhost10
vscsi1 0x000007 0x0000000000 0x0 xxx-vios2->vhost10

Note: It works only on AIX 6.1 or later... 

# echo "cvai" | kdb | grep vscsi | awk '{print $5}' | grep ^sio | sed 's/->/ /g' | sort | sed 'N;s/\n/ /'