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The monitors for CPU, Memory, and Disk Utilization are automatically associated for the devices based on the device template definitions. For instance, for Linux servers, the default template has SNMP-based monitors associated. So, all Linux servers will have SNMP-based resource monitors associated. You will see the dial graphs for these three resources in the device snapshot page if SNMP is enabled.
All the Server templates have the monitors defined for various host resources. By default, the CPU, Memory, and Disk Monitors are associated to the servers. The device snapshot page shows the values of these monitored resources with dial-graphs.
If you do not see these monitors associated to the devices, it could be due to any or all of the following reasons:
Steps to add the monitors to the device again:
To check if the SNMP agent in the device returns response, try the following:
Incase the agent does not respond, you see a message to this effect. Refer to the troubleshooting tips to resolve the issue.
As an alternative, you can monitor the non-SNMP Linux servers using CLI (telnet or SSH), or the non-SNMP Windows devices using WMI.
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