We have noticed a difference in the device monitored count
Looking the Data Collector view ; we have "1734 Monitore devices "
And going to Inventory --> Items --> Devices we have 1931
Why we have this diference of count ??
Release : 3.7
Component : PERFORMANCE MANAGEMENT INTEGRATIONS
Performance Center shows devices from all associated data sources and also inactive or retired devices.
The Data Collector displays active devices and may not reflect the same number as Performance Center's "Devices" list
You can determine which devices are active, and which devices belong to which data sources.
You can filter by the Life Cycle status in Performance Center, under Devices.
You can also query MySql in Performance Center
mysql> select a.SourceID, a.itemname, a.LocalID, a.ItemID, v6_ntoa(a.Address), b.consolename from netqosportal.dst_device a, data_sources2 b where a.sourceid=b.sourceid;
You can see if the devices belong to multiple Data Sources or just one