Basically, the somgathersupportinfo.ovpl script uses the following locations:
For Windows, the $sysdrive is actually the %SYSTEMDRIVE% variable, which by default is the C:\ location.
For Linux, it is the /tmp location which may or may not be part of a separate file system.
The script creates the "Logs", "somEnvironment", "systemInfo" and possibly the "database" directories within those locations, copies the data to them and then removes them after the zip file is created and the script completes.
NOTE: File system space and/or corruption in these locations can cause problems with the collection and gathering of this information.
I hope that this information is helpful.
Good luck with your SOM environments.
--- Mark Butler Micro Focus SW Support Engineer https://softwaresupport.hpe.com/