ISS Log Path best practices report by SPDocKit determines whether the IIS Log files are stored on the primary drive.
This check determines whether the IIS Log files are stored on the primary drive.
The log files generated by IIS can consume a lot of space and could potentially fill an entire hard drive. This can cause many problems if logs are being stored on the primary drive, which is usually the C: drive. The default path is %SystemDrive%inetpublogsLogFiles.
A couple of solutions for this problem are outlined in the following article. Whenever possible, we recommend moving the log folder to a secondary drive or a network share. The default log folder can be changed at IIS Manager > Connection Pane > Logging.
If you have multiple web front-end servers in your SharePoint farm, don’t forget to update them all.
Additional information can be found in the following article: