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

The amount that you can increase the heap size depends on the volume of RAM on the vRealize Hyperic server host.

Given sufficient RAM, you could use these settingsserver.java.opts=-Djava.awt.headless=true -XX:MaxPermSize=192m -Xmx4096m -Xms4096m -XX:+UseConcMarkSweepGC -XX:+UseCompressedOops.

If you are running the vRealize Hyperic server on a 64-bit system with 4GB (4096 MB) or less memory, vRealize Hyperic recommends that you use 32-bit JVM. If you use a 64-bit JVM, ensure that you set the -XX:+UseCompressedOops property in server.java.opts, with the oops option set.