CPU, memory, disk utilizations are not displayed

CPU, memory, disk utilizations are not displayed

Hello.
I am a new user of application manager. I installed and added a oracle db server monitor. The server is being monitored. But i am able to see the CPU, disk and memory utilization pictures on slecting the monitor. Other information and graphs are dispalyed for connection time, db details and status are displayed. How may I view the utilization details.

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