OpManager Snapshot Edit

Hi,

I have two questions.

First one: I have a server (linux) on my system. SNMP Credential is OK for the device. On the snapshot page for the device, I cannot read any data for CPU and Disk Utilization. I have Availability, Memory Utilization, Response Time and Today's Packet Loss datas. What is the problem for CPU and Disk Utilization?

When I edit CPU Utilization from the Performance Monitors and check the Test Monitor I see that in the box The Monitor responded to the test request, but for Disk Utilization The Monitor did not respond to the test request. What I miss in that point?

Second one: I want to edit the snapshot device by device. For exp. I want to see Temprature instead of the Respond Time or etc.

Thank you.