The csvdmig utility adds the domain name to the user ID as follows:
The format of calendar ID's (calids) is changed:
Access Control List (ACL) access rules are changed:
The LDAP directory server user entries for the Calendar Server attributes are modified as:
userid[:calendar-name] to userid@domain[:calendar-name].
Updates the owner and attendee fields in events and tasks in the calendar database.
For example: if jsmith in the domain sesta.com is the owner of an event, the new owner field would contain firstname.lastname@example.org.
The csvdmig utility updates the databases and LDAP directory in place. That is, it does not create a separate migrated database, but alters the database you are converting. Therefore, to be safe, run csvdmig against snapshots of your databases and LDAP directory.