We configured the collector agents on a windows server and observed that "Disk_UsedPercent" metric data is not available via the configured source although, as per Host Metrics Source it should be there.
What could be the reason for those not being available and how to resolve it?
The "Disk_UsedPercent" metric was made available from the 19.227-19 version. The same can be seen from below collector release notes and therefore the collector version should be anything newer than this version in order for you to capture this metric.
For more information from release notes:
January 14, 2019 (19.227-19)