You can tune vCenter Hyperic server for large deployments. The sizing profile that you select affects the server properties.

You can run the vCenter Hyperic installer to change the current sizing profile that is applied to the server.

The number of platforms that the vCenter Hyperic server can manage depends on the hardware it runs on, the number of vCenter Hyperic agents reporting to the server, the volume of metrics that are collected, and the size of the vCenter Hyperic database.

Typically, a minimal system configuration supports 25 or more vCenter Hyperic agents. On a high performance platform, a correctly configured vCenter Hyperic server can support up to 2,000 agents.

There are a variety of vCenter Hyperic server properties that govern the system resources available to the server. You determine the properties' values based on the number of platforms under management.

You can use the values in the table to determine the server requirements for scaling your environment.

Heap size startup options are set in the server.java.opts property.

vCenter Hyperic server uses Ehcache for in-memory caching. Effective cache management is necessary for server stability and performance.

You can monitor vCenter Hyperic caches on the Cache tab of the HQ Health page.

The values that indicate a well-tuned cache vary by the nature of the caches, and a host of deployment-specific factors. Key things to check for include whether the cache limit has been reached and the hits:misses ratio.

You can modify the size of a vCenter Hyperic cache by editing an element in the ehcache.xml file. Generally, only cache sizes need to be changed.