Greetings,
With HPE iLO 5, we’re moving to full agentless management. Freedom from the hassle of inventorying and updating various management agents, agentless management allows for a more simplified and streamlined way to monitor your servers. Also, new in HPE Gen10, System
Management Assistant (SMA) support for HPE Gen10 Agentless Management enables routing of SNMP information sourced from HPE iLO via the operating system.
With the release of Gen10 servers, iLO no longer supports OS-based SNMP agents. The System management Assistant (SMA) is an Agentless Management Service feature for users who want to run applications that obtain SNMP information from the OS.
AMS (forward mode) - The standard configuration of AMS is to pass information from the OS to iLO.
SMA (reverse mode) - When SMA is enabled, information is passed from iLO to the OS.
Installation
SMA is installed as part of the AMS package, and it is disabled by default.
Enabling SMA
Windows - Use the default AMS configuration to pass information from the OS to iLO. Enable SMA to pass information from iLO to the OS. The standard configuration of AMS and SMA can be enabled at the same time.
Linux and VMware - Use the default AMS configuration to pass information from the OS to iLO. Enable SMA to pass information from iLO to the OS. The default AMS configuration and SMA cannot be enabled at the same time.
With iLO 3 and earlier, SNMP management used the HPE Insight Management Agents running on the server operating system. With iLO 4, user can use either Agentless Management or the Insight Management Agents. The default configuration uses Agentless Management. Agentless Management uses out-of-band communication for increased security and stability. With Agentless Management, health monitoring and alerting is built into the system and begins working the moment a power cord is connected to the server. This feature runs on the iLO hardware, independent of the operating system and processor. Additional operating system data is collected when AMS is installed.
For more information refer HPE Integrated Lights Out (iLO 4) - Viewing iLO systems in the Windows Network Folder
https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-a00045519en_us&docLocale=en_US
and HPE Agentless Management and the transition from OS-based agents guide