CPU,Memory and Disk utilization

CPU,Memory and Disk utilization

Hi,

I'm new in OpManager, I installed a trail to my server.So I'm having a problem with Windows 2003 Servers.I can't see the CPU,Memory and Disk utilization, and I installed the SNMP and configure it even though I did not configure SNMP traps.So I really don't what to do.Please help me 'cause I'm not sure
1. what community name is.
2. if is a must to configure SNMP traps



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