Comprehensive and Detailed Explanation From Exact Extract:
When displaying Universal Device Poller (UDP) data in different web console views, each view must be configured to show the UDP results as charts.
From the documentation:
"In the Universal Device Poller application, under the Web Display tab, you must check the 'chart' box for every web view where you want to display the poller data. If the box is not checked for the current view, the data will not be visible as a chart widget." References:
NPM Administrator Guide: Universal Device Poller - Web Display Settings

Comprehensive and Detailed Explanation From Exact Extract:
If a node remains in "unknown" status:
A). Ping device from assigned polling engine: Verifies direct network connectivity from the poller to the node.
C). Verify the appropriate polling method is set for this node: Ensures SolarWinds uses the correct protocol (ICMP, SNMP, WMI, etc.) for monitoring.
D). Verify a ping response for this node is received through the ICMP: Confirms basic reachability and that the node is not blocking ping requests.
Running an SNMP walk (B) can help diagnose SNMP-specific issues but is not always directly relevant to a node simply being in "unknown" status unless SNMP is the configured polling method.
Reference:
NPM Administrator Guide, "Troubleshooting Node Status 'Unknown'"

Comprehensive and Detailed Explanation From Exact Extract:
Hardware health monitoring can be enabled during node discovery or after a node is added via the "List Resources" option. Additionally, hardware health can be enabled or viewed in the Asset Inventory page for nodes that support it.
From the documentation:
"You can enable hardware health sensors by selecting the option during resource discovery (List Resources) or later via Asset Inventory for individual nodes." References:
NPM Administrator Guide: Enabling Hardware Health