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Direct Attach support for Stretch MetroCluster Configuration with NetApp E-Series array

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Applies to

  • MetroCluster
  • ONTAP 9
  • ONTAP 8.3
  • FlexArray

Answer

This document outlines the direct attach configuration with NetApp E-Series Array for a Stretch MetroCluster.

Direct Attach is supported only with NetApp E-Series Array in a Stretch MetroCluster configuration starting from Clustered Data ONTAP 8.3.1
For all other supported arrays, you must use FC switches for connecting array LUNs to the Data ONTAP systems.

Related Links:

 

Supported Direct Attach configuration:

  1. Stretch MetroCluster with only NetApp E-Series Array LUNs
  2. Stretch MetroCluster with both NetApp E-Series Array LUNs and NetApp native disks where NetApp Native Disks are connected via Optical SAS cables.
  3. Stretch MetroCluster with both NetApp E-Series Array LUNs and NetApp native disks where NetApp Native Disks are connected via FC to SAS bridges.

 

Examples of Direct Attach configuration for Stretch MetroCluster (MCC) with NetApp E-Series array LUNs:
In a stretch MetroCluster configuration with NetApp E-Series Array LUNs, you must cable each controller's HBA ports to target ports on the corresponding NetApp E-Series Array Controllers.

  1. The following illustration shows a two-node stretch MetroCluster direct attach configuration with the NetApp E-Series array LUN connections:


     
  2. The following illustration shows a two-node stretch MetroCluster configuration in which native disks are connected to Data ONTAP systems through SAS optical cables.


    For controller ports connecting to array LUNs, see Figure-1
     
  3. The following illustration shows a two-node stretch MetroCluster configuration in which native disks are connected to Data ONTAP systems through FC-to-SAS bridges:



      For controller ports connecting to array LUNs, see Figure-1

Additional Information