Tips for Adding Controllers with More than One Ethernet Port
Controllers have either one or two Ethernet ports on the rear of the controller. When your controller has more than one Ethernet port, keep these guidelines
in mind when you cable the controllers:
Use one Ethernet port from each controller to connect to your . Use the other Ethernet port from each controller to connect to an externally accessible network. This connection lets a
representative access the storage subsystem. The representative can then help you to troubleshoot and upgrade your storage
subsystem without having access to your data.
When configuring the Ethernet ports, make sure that the port configured for the representative is on a separate from the storage subsystem port. Configuring both ports with the same subnet causes a Hardware Ethernet Conflict error.
When you cable your controllers, be consistent about selecting which port will connect to which network. For example, the
Ethernet ports are labeled 1 and 2 on each controller. Choose port 1 from controller A and port 1 from controller B for your
storage subsystem management. Choose port 2 from controller A and port 2 from controller B for external access for the representative.
For more information about cabling controllers, refer to any cabling information that came with your hardware.