Identified that the probe SQLserver is not reporting the real free space available / allocated.
Release : 20.3
Component : UIM - SQLSERVER
This is working as designed.
If the database is set to allow unhindered growth, it will show 100% free for this checkpoint.
For the reality, should be used the database_size checkpoint.
QOS_SQLSERVER_free_space
PercentMonitors the amount of free space in data files in percentage.
Note: If there is at least one file with "unlimited" growth, the space in the whole database is considered as 100% free. Using file groups, could be misleading; therefore, must deactivate this checkpoint and use only the "fg_free_space" checkpoint.