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Installing and cabling MetroCluster components

The storage controllers must be cabled to the FC switches and the ISLs must be cabled to link the MetroCluster sites. The storage controllers must also be cabled to the cluster peering, data, and management networks.

  1. Racking the hardware components
    If you have not received the equipment already installed in cabinets, you must rack the components. Refer to Lenovo ThinkSystem DM/DE Series 2U24, 3U, 4U rail kit installation instructions.
  2. Cabling the new controller module's FC-VI and HBA ports to the FC switches
    The FC-VI ports and HBAs (host bus adapters) must be cabled to the site FC switches on each controller module in the MetroCluster configuration.
  3. Cabling the ISLs between MetroCluster sites
    You must connect the FC switches at each site through the fiber-optic Inter-Switch Links (ISLs) to form the switch fabrics that connect the MetroCluster components.
  4. Port assignments for systems using two initiator ports
    You can configure DM7000H and AFA DM7000F systems using a single initiator port for each fabric and two initiator ports for each controller.
  5. Port assignments for FC switches
    You need to verify that you are using the specified port assignments when you cable the FC switches.
  6. Cabling the cluster interconnect in eight- or four-node configurations
    In eight- or four-node MetroCluster configurations, you must cable the cluster interconnect between the local controller modules at each site.
  7. Cabling the cluster peering connections
    You must cable the controller module ports used for cluster peering so that they have connectivity with the cluster on the partner site.
  8. Cabling the HA interconnect, if necessary
    If you have an eight- or a four-node MetroCluster configuration and the storage controllers within the HA pairs are in separate chassis, you must cable the HA interconnect between the controllers.
  9. Cabling the management and data connections
    You must cable the management and data ports on each storage controller to the site networks.