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# Enabling health monitoring for legacy servers

Network management systems use SNMP (Simple Network Management Protocol) to monitor network-attached devices. The appliance uses SNMP to retrieve information from managed devices. The devices use SNMP to send asynchronous notifications (called traps) to the appliance.

You specify a read community string that serves as a credential to verify access to the SNMP data on the managed devices. The appliance sends the read community string to enclosures (through their OAs) and to the servers (though their iLO management processors). Some older devices require manual host OS configuration.

### Install SNMP OS host agents for HPE ProLiant server blades

For the appliance to monitor the health of HPE ProLiant G6 and HPE ProLiant G7 server blades, you need to configure the SNMP settings for the server and iLO 3.

1. Install the host operating system on the server.

2. Install the SNMP subsystem on the server.

3. Configure SNMP on the host to use the community string and trap destination of the appliance.

4. Using the latest SPP, install the Hewlett Packard Enterprise management agent set and associated drivers. You will be prompted for the SNMP community string and the trap destination.

5. After the Hewlett Packard Enterprise management agent set and associated drivers are installed and running, add the HPE ProLiant G6 and HPE ProLiant G7 server blade to the appliance.

   If you install the agents and drivers after adding the G7 server blade, you might have to refresh the G7 server blade from the Server Hardware screen.

| NOTE: If you change the appliance read community string, you must reconfigure all HPE ProLiant G6 and HPE ProLiant G7 server blade SNMP OS host agents to use the new read community string. The appliance cannot propagate this update to the host OS.

See also

- Server Hardware

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