Tips for adding RAID controller modules with more than one Ethernet port
RAID Controller Modules have either one or two Ethernet ports on the back of the RAID controller module. When your RAID controller module has more than one Ethernet port, keep the following cabling guidelines in mind:
Use one Ethernet port from each RAID controller module to connect to your . Use the other Ethernet port from each RAID controller module to connect to an externally accessible network, which allows Customer and Technical Support to access the storage array. This configuration permits Customer and Technical Support to assist you with troubleshooting and upgrading your storage array without allowing them access to your data.
When configuring the Ethernet ports, ensure that the port configured for Customer and Technical Support is on a separate subnet from the storage array port. Configuring both ports with the same subnet causes a "Hardware Ethernet Conflict" error.
When cabling your RAID controller modules, be consistent about selecting which port will connect to which network. For example, the Ethernet ports are labeled 1 and 2 on each RAID controller module. Choose port 1 from RAID controller module A and port 1 from RAID controller module B for your storage array management. Choose port 2 from RAID controller module A and port 2 from RAID controller module B for external access for Customer and Technical Support.
For more information on cabling RAID controller modules, refer to any cabling information that came with your hardware.