If I modify the MAX_EVENT_DAYS parameter in the $SPECROOT/SS/DDM/.configrc file, do I also need to modify MAX_STAT_DAYS parameter?
As of Spectrum 9.x an up you do not need to modify this value.
MAX_STAT_DAYS is no longer used in 9.x version and up.
This was used previously for gathering statistical data for legacy tool report generator.
Please reference the "Archive Manager Resources" section of the documentation for more information.