An engine can be used for the following purposes:
Engine proxy
Engine load-balancing
Engine proxy
Cortex XSIAM engines enable you to access internal or external services that are otherwise blocked by a firewall or a proxy. For example, if a firewall blocks external communication and you want to run the Rasterize integration, you need to install an engine to access the Internet.
Engine load-balancing
Engines can be part of a load-balancing group, which enables the distribution of the command execution load. The load-balancing group uses an algorithm to efficiently share the workload for integrations that the group is assigned to, thereby speeding up execution time. In general, heavy workloads are caused by playbooks that run a high number of commands.
Note
When you add an engine to a load balancing group, you cannot use that engine separately. The engine does not appear in the engines menu when configuring an integration instance.