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Differences between the e0M interface and the remote management device

Both the e0M interface and the remote management device connect to the internal Ethernet switch that connects to the Ethernet port. (The Ethernet port is indicated by a wrench icon on the rear of the chassis.) However, the e0M interface serves as the dedicated interface for management traffic, and the remote management device provides remote management capabilities.

The e0M interface serves as the dedicated interface for environments that have dedicated LANs for management traffic. You use the e0M interface for Data ONTAP administrative tasks.

The remote management device (which can be the SP or the RLM, depending on the storage system model) not only can be used for managing Data ONTAP but also provides remote management capabilities for the storage system, including remote access to the console, monitoring, troubleshooting, logging, and alerting features. Also, the remote management device stays operational regardless of the operating state of the storage system and regardless of whether Data ONTAP is running.