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Dell PowerVault ME4 Series Storage System Deployment Guide

Connecting direct attach configurations

A dual-controller configuration improves application availability. If a controller failure occurs, the affected controller fails over to the healthy partner controller with little interruption to data flow.

A failed controller can be replaced without the need to shut down the storage system.

NOTE:In the following examples, a single diagram represents CNC, SAS, and 10Gbase-T host connections for ME4 Series controller enclosures. The location and sizes of the host ports are similar. Blue cables show controller A paths and green cables show controller B paths for host connection.

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