The number of topology groups in a Sun Management Center server context should not exceed the following:
Small servers - 25 topology groups
Medium servers - 50 topology groups
Large servers - 75 topology groups
Extra-large servers - 100 topology groups
The maximum number of immediate child objects in a topology group is 256. For optimal performance, the number of child objects in a group should not exceed 100.
If you install the Performance Reporting Manager add-on, each topology domain should contain less than 200 Sun Management Center agents to ensure optimal collection of Performance Reporting Manager data.