IP/DNS polling

Most network monitoring solutions use IP addresses to poll the devices and fetch performance data, but some network admins might want to poll their devices using DNS names of the devices. OpManager allows you to select whether you want to poll your devices using the IP address of the device or the DNS name. This setting can be controlled throughout OpManager or can also be configured for individual devices.

1. Global setting for polling mode

You can configure the method used by OpManager to poll devices across the network.

1. Go to Settings → Monitoring → Monitor Settings.
2. Under Poll Using, choose the preferred polling mode:
   • IP Address – Polls devices using their IP address.
   • DNS – Polls devices using their DNS name.
3. Click Save to apply the changes.

Hardware and IPMI settings

Under Hardware and IPMI, you can configure settings related to hardware sensor monitoring and inventory data collection.

Hardware Sensor Metrics

These settings control how frequently hardware sensors are polled.

1. Enable Hardware Monitoring with polling interval and specify the polling interval in seconds.
2. This interval determines how often OpManager monitors hardware sensors such as battery, fan, memory, power supply, processor, storage, temperature, and voltage for supported devices.
3. The recommended minimum polling interval is 300 seconds.
4. Enable Delete the sensor if it is unavailable for more than and specify the number of days after which unavailable sensors should be removed.

Hardware Inventory Metrics

This setting controls how often hardware inventory information is collected.

1. Enable Collect hardware inventory metrics.
2. Specify the collection interval in hours.

Note:

• The recommended interval is 12 hours.
• The minimum configurable interval is 6 hours.

Note: Changes in the global setting apply only for devices that will be discovered in the future. The polling method of devices already discovered will not be affected in any way.

2. Device-specific configuration

You can also configure this setting individually for any device. To configure it:

• Go to Inventory and click on the device you want to change this setting for.
• Click on the three-line menu and click 'Edit device details'. You can also click on the Edit button in the device summary.
• Under 'Poll using', select the mode that you wish to use to poll that device and click 'Save'.