Determining the new cabling layout
You must determine the cabling for the new controller modules and any new disk shelves to the existing FC switches.
This task must be performed at each MetroCluster site.
Use the Fabric-attached MetroCluster Installation and Configuration Guide and create a cabling layout for your switch type, using the port usage for an eight-node MetroCluster configuration.
The FC switch port usage must match the usage described in the guide so that the Reference Configuration Files (RCFs) can be used.
If your environment cannot be cabled in such a way that RCF files can be used, you must manually configure the system according to instructions found in the Fabric-attached MetroCluster Installation and Configuration Guide. Do not use this procedure if the cabling cannot use RCF files.