No Self Monitoring Metric data is present in the DX NetOps Performance Management (PM) Performance Center (PC) web UI Portals System Health Dashboards
When displaying the out of the box System Health Dashboards receiving "No Data to Display"
When displaying customized System Health Dashboards receiving "No Data to Display"
When displaying Views to see Data Aggregator monitoring statistics receiving "No Data to Display"
When displaying Views to see Data Collector monitoring statistics receiving "No Data to Display"
All supported DX NetOps Performance Management releases
The most common cause for this problem is the inadvertent deletion of the Data Aggregator item created to represents the Data Aggregator within the PC web UI Portal.
NEVER delete the Data Aggregator ITEM unless under the direction of Broadcom Support.
Once deleted the solution is more intensive than simply reassigning Monitoring Profiles.
The full solution involves:
If this problem is being seen in your environment please open a new support case with the PM Support team for resolution.
Out of the Box Functionality:
When the Data Aggregator is inadvertent deleted, it is recreated by the system. When it is recreated it is assigned a new itemID in the database. We are then left with old data tied to a different itemID and a new Data Aggregator element no longer tied to the Monitoring Profiles.