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ONTAP MetroCluster

Examples of two-node stretch MetroCluster configurations with disks and array LUNs

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For setting up a stretch MetroCluster configuration with native disks and array LUNs, you must use either FC-to-SAS bridges or SAS optical cables to connect the ONTAP systems to the disk shelves. In addition FC switches must be used for connecting array LUNs to the ONTAP systems.

A minimum of eight HBA ports are required for an ONTAP system to connect to both native disks and array LUNs.

In the following examples representing two-node stretch MetroCluster configurations with disks and array LUNs, HBA ports 0a through 0d are used for connection with array LUNs. HBA ports 1a through 1d are used for connections with native disks.

The following illustration shows a two-node stretch MetroCluster configuration in which the native disks are connected to the ONTAP systems using SAS optical cables:

two node mcc combined glowworm

The following illustration shows a two-node stretch MetroCluster configuration in which the native disks are connected to the ONTAP systems using FC-to-SAS bridges:

two node mcc combined armadillo

The following illustration shows a two-node stretch MetroCluster configuration with the array LUN connections:

two node mcc combined array luns
Note If required, you can also use the same FC switches to connect both native disks and array LUNs to the controllers in the MetroCluster configuration.

Fabric-attached MetroCluster installation and configuration