Supported direct-attached configurations with E-Series storage arrays

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You can connect ONTAP systems in direct-attached configurations with E-Series storage arrays. You must verify redundancy in connections between the ONTAP systems and the storage arrays to avoid the possibility of a single point of failure. FlexArray Stretch MetroCluster supports direct-attached configurations with E-Series storage arrays. For more information see, Interoperability Matrix and Stretch MetroCluster Installation and Configuration Guide

The Interoperability Matrix contains information about the specific E-Series array models that are supported in direct-attached configurations with ONTAP system.

ONTAP supports the following direct-attached configurations with E-Series storage arrays:

Stand-alone basic configuration

In a stand-alone basic configuration, two FC initiator ports from the ONTAP system access the ports of a two-port array LUN group.

The following illustration shows a direct-attached configuration where the ONTAP FC initiator ports 0a and 0h access the target ports of a two-port array LUN group:

da 2port standalone

Four-port array LUN group

Two FC initiator ports from each ONTAP system in an HA pair access different storage array ports in a four-port array LUN group for redundancy in connections.

The following illustration shows a direct-attached configuration where the ONTAP FC initiator ports access the target ports of a four-port array LUN group.

da 4port hapair

You can also connect four FC initiator ports from each ONTAP system in the HA pair to two different four-port array LUN groups such that each FC initiator port in a port pair accesses the alternate LUN group.

The following illustration shows a direct-attached configuration where the ONTAP FC initiator ports access the target ports of two four-port array LUN groups:

direct attached configuration with two four port array lun groups

Eight-port array LUN group

Four FC initiator ports from each ONTAP system in an HA pair access different storage array ports in an eight-port array LUN group for redundancy in connections.

The following illustration shows a direct-attached configuration where the ONTAP FC initiator ports access the target ports of an eight-port array LUN group:

eight port direct attached ha pair configuration

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