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Dell PowerVault ME4 Series Storage System Deployment Guide

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Host ports and replication

ME4 Series Storage System controller modules can use qualified 10Gbase-T connectors or CNC-based ports for replication.

CNC ports must use qualified SFP+ transceivers of the same type, or they can use a combination of qualified SFP+ transceivers supporting different interface protocols. To use a combination of different protocols, configure host ports 0 and 1 to use FC, and configure ports 2 and 3 to use iSCSI. FC and iSCSI ports can be used to perform host I/O or replication, or both.

NOTE:ME4 Series 5U84 enclosures support dual-controller configurations only. ME4 Series 2U controller enclosures support single controller and dual-controller configurations.
  • If a partner controller module fails, the storage system fails over and runs on a single controller module until the redundancy is restored.
  • In dual-controller module configurations, a controller module must be installed in each slot to ensure sufficient airflow through the enclosure during operation. In single-controller module configurations, a controller module must be installed in slot A, and controller module blank must be installed in slot B.

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