Sun Java System Calendar Server 6.3 Administration Guide Migrates Calendars

csmig migrates both user and resource calendars in the current calendar database (*.db files) specified by the caldb.berkeleydb.homedir.path parameter. In the new destination target database, csmig updates entries required by the LDAP CLD plug-in in the calendar properties (calprops), events, todos (tasks), and group scheduling engine (GSE) database files.

csmig writes only to the destination target database; it does not update your existing calendar database.