Stretch MetroCluster configuration with disks

You can configure a stretch MetroCluster configuration so that each controller can access its own storage and its partner's storage, with local storage mirrored at the partner site.

The following figure illustrates the stretch MetroCluster configuration using DS14mk2 or DS14mk4 disk shelves. For an example of a stretch MetroCluster configuration using SAS disk shelves and FibreBridge 6500N bridge, see Configuring a MetroCluster system with SAS disk shelves and FibreBridge 6500N bridges on the NetApp Support Site. For an example of a stretch MetroCluster configuration using SAS disk shelves and SAS optical cables, see the Configuring a stretch MetroCluster system with SAS disk shelves and SAS optical cables. The configuration includes the following connections:

  • Connections from each controller to the user network
  • The MetroCluster interconnect between the two controllers
  • Connections from each controller to its own storage:
    • Controller A to X
    • Controller B to Y
  • Connections from each controller to its partner's storage:
    • Controller A to Y
    • Controller B to X
  • Connections from each controller to the mirrors of its storage:
    • Controller A to X-mirror
    • Controller B to Y-mirror

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Note: This is a simplified figure that does not show disk shelf-to-disk shelf connections.