I just realized that I did not have Report Archive purge enabled. The directory C:\Program Files\CSCOpx\files\rme\cri\archives\syslog\reports\output was over 11 GB. I went into RME => Admin => System Preferences => Job Purge and performed a "Purge Now" operation for anything older than 90 days. This brought the disk usage down to 6.5 GB. However, The directory still contains files dating back to 2005.
The subdirectories within this directory are named job_nbr.instance_nbr. I currently have 3 actively scheduled syslog report jobs, and the subdirectories for these jobs seem to have been removed. However, there are subdirectories for jobs that no longer exist, and these are left un-touched. Can I go ahead and manually delete these subdirectories?