Like any system some regular maintenance will keep NMIS running smoothly, we have automated as much as we can and will continue to do so, here are a few things to check on.
Check and Audit the configuration,
These commands tell you what folders and permissions are incorrect, and then just fix it.
/usr/local/nmis8/bin/nmis.pl type=audit /usr/local/nmis8/bin/nmis.pl type=config
Check the NMIS code base for syntax and dependancies.
/usr/local/nmis8/admin/check_nmis_code.pl
Log rotation is the most important factor
Verify logrotate.conf is running in cron and setup for your files.
Cleaning up old RRD files periodically
cd /usr/local/nmis8/database
find . –name "*rrd" -mtime +30 -print -exec rm {} \;
find . -name "*rrd" -size 0 -print -exec rm {} \;
Other things
Check the runtime graphs
Check for zombie processes