Dell EMC OpenManage Plug-in version 3.1 for Nagios provides capabilities for Out-of-Band (Agent-Free) management of iDRAC based PowerEdge Servers, Modular Infrastructure, Hyper-Converged Infrastructure (HCI),Datacenter Scalable Solutions(DSS), Storage and Networking devices. This plug-in provides complete hardware-level visibility including detailed inventory, health status (both overall and component-level health status) and SNMP trap monitoring for supported devices. PowerEdge servers are monitored using the Redfish based REST APIs, WS-Man APIs and SNMP protocol supported by iDRAC with Lifecycle Controller. Modular infrastructure are monitored using the REST APIs, WS-Man and SNMP protocol supported by OpenManage Enterprise-Modular (for MX7000 chassis) and Chassis Management Controller (for M1000e, VRTX and FX2/FX2s). REST APIs and SNMP are supported for monitoring the storage devices whereas networking devices are monitoring using SNMP. One-to-One web console launch of the respective element managers for iDRAC, Modular Infrastructure, Storage and Network devices is also supported by the OpenManage Plug-in to perform further troubleshooting, configuration and management activities.