Debug logging for the inventory service on the Desktop Management Server is enabled by default.
Location of Services Properties: inventory_volume/share\zenworks\inv\server\wminv\properties\tracerfilter.properties
Logging Output: inventory volume/share\zenworks\inv\server\wminv\logs\zenworksinvservice\zenworksinvservice-xxxx.txt
If you want to configure the data in the debug log to enable all debug information, find the following line in the properties file:
*default*=BRIEF
Change the line as shown below, then save.
*default*=ALL