1. On any clients do a ibstat
CA type: MT26428 Number of ports: 2 Firmware version: 2.9.1000 Hardware version: b0 Node GUID: 0x000xxxxxxxxxx System image GUID: 0xxxxxxxxxxxxxxxx Port 1: State: Active Physical state: LinkUp Rate: 40 Base lid: 184 LMC: 0 SM lid: 1 Capability mask: 0x02510868 Port GUID: 0x0002c903005abfd7 Link layer: InfiniBand
2. To check for the SM Manager
# smpquery ND -L 1 Node Description:.......Voltaire 4036 # 4036-0D9E
where 1 is the SM Lid:1
3. If you query InfiniBand SMInfo attribute
# sminfo sminfo: sm lid 1 sm guid 0x8f10500200d9e, activity count 42554 priority 4 state 3 SMINFO_MASTER