Service Usage Statistics

IST collects session data from the servers used to authenticate and authorize access to certain network services. This session data is regularly processed to produce monthly usage statistics as well as yearly summaries. Collection of this data began January 1st, 2008.

The first set of statistics consists of the following data for the month/year listed.

Unique Users	The number of unique accounts used to authenticate.
Total Sessions	The total number of user sessions.
Total Hours	The total number of hours of use for the service.
Avg Min per Session	The average length of a session for the service.

The second set of statistics is a breakdown of the first by user affiliation category, as described below.

nocalnet	No CalNet entry found during processing. We use this category when a user's account has expired from CalNet after their last use of the service but before the processing of their session data.
nomdmacct	No modem account found during processing. We use this category when a user's account has expired from the modem account database after their last use of the service but before the processing of their session data.
affiliate	An affiliate of the University.
staff	A staff member of the University.
faculty	A faculty member of the University.
guest	A guest account.
student G	A graduate student.
student U	An undergraduate student.

Statistics by year

2008

2009