The csstats utility displays statistical information from counter objects defined in the calendar configuration (counter.conf) files. Counter objects such as httpstat, authstat, wcapstat, or dbstat show information about Calendar Server including:
Maximum number of concurrent connections and total number of connections
Total number of successful and failed logins and connections
Number of database reads, writes, and deletes
For information about Calendar Server counter statistics, see Appendix E, Calendar Server Configuration Parameters.