IBM Power System E950 9040-MR9 Installing Instruction page 60

Figure 36. Directly attaching the HMC to the managed system
2. To learn how to connect an HMC to a private network so that it can manage more than one managed
system, see HMC network connections (http://www.ibm.com/support/knowledgecenter/POWER9/
p9hai/p9hai_netconhmc.htm).
Notes:
• You can also have multiple systems that are attached to a switch that is then connected to the HMC.
For instructions, see HMC network connections (http://www.ibm.com/support/knowledgecenter/
POWER9/p9hai/p9hai_netconhmc.htm).
• If you are using a switch, ensure that the speed in the switch is set to Autodetection. If the server is
directly attached to the HMC, ensure the Ethernet adapter speed on the HMC is set to
Autodetection. For information about how to set media speeds, see Setting the media speed (http://
www.ibm.com/support/knowledgecenter/POWER9/p9hai/p9hai_lanmediaspeed_enh.htm).
3. If you're connecting a second HMC to your managed server, connect it to the Ethernet port that is
labeled HMC2 (T4) on the managed server.
4. Continue with "Routing cables through the cable-management bracket and connecting expansion
units" on page 47.
46 Power Systems: Installing the IBM Power System E950 (9040-MR9)