Hi,
After checking the history of the Feature Requests category, I could not find any reference to this.
Although counting in Sonarr with a proper logging solution is a more than welcome functionality, at some point in which you reach a certain point of stability in the Sonarr deployment, you may wish you could reduce the log level so only Warning, Error or Fatal entries are written to the disk.
This would be particularly useful for home NAS deployments, in which you only expect disks getting active when there is actual activity in the download of new series chapters. This change would allow saving energy and reducing the sound level from this kind of servers.