Have you ever tried using ssh to the node IP address?
ssh to the SMU:
ssh manager@172.20.252.48
Password:
Last login: Thu Sep 27 10:03:12 2018 from 10.23.31.3
Available servers:
==================
1) 172.20.251.61 myNAS
Please choose a server, or type 'q' to exit to a bash shell.
Server: 1
Hitachi NAS OS Console
MAC ID : 04-04-03-04-07-01
Cluster MAC ID : 04-04-03-04-07-01
G800-443471-1:$ evs list | grep Cluster
1 Cluster G800-443471-1 Yes Online 172.20.251.61 CTL1
2 Cluster G800-443471-2 Yes Online 172.20.251.62 CTL2
logout of the SMU..
ssh manager@172.20.251.61
manager@172.20.251.61's password:
Linux G800-443471-1 3.10.61-hl2-amd64 #1 SMP Wed Oct 26 16:13:33 JST 2016 x86_64
Hitachi NAS OS Console
MAC ID : 04-04-03-04-07-01
Cluster MAC ID : 04-04-03-04-07-01
G800-443471-1:$
Was none of this explained upon delivery/install?