Microsoft Operations Management Suite Cookbook

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You can configure the OMS Gateway for high availability through network load balancing (NLB). This will enable you to use the TCP/IP networking protocol to distribute traffic across two or more OMS Gateway servers. Using an NLB configuration will provide you with some measure of high availability and scalability for your OMS Gateway configuration. You can make use of any existing hardware-based load balancers that you use within your infrastructure, and the OMS Gateways configured as NLB hosts should support common NLB configurations, such as your preferred load-balancing algorithms (least sessions, round robin, fastest, and so on), persistence methods, and so on.

Ensure that your target server listening port adheres to the port configuration used during the installation of the OMS Gateway server(s).

You can also install the OMS agent on the computer configured as the OMS Gateway. This configuration will enable the following:

The OMS Gateway can identify the service endpoints that it needs to communicate with
The OMS agent can monitor and collect event and performance data from the OMS Gateway

Additionally, Operations Manager Gateway servers deployed in untrusted networks cannot communicate with the OMS Gateway. They can only report to an Operations Manager management server, and would therefore be subject to the proxy server settings (if any) configured for the management group to which the SCOM management server belongs.

For directly connected computers to send data to the OMS Gateway, they must have network connectivity to the OMS Gateway, and the agents' proxy configuration should be set to the same port used by the OMS Gateway to communicate with OMS service endpoints.