The Schema Migration Utility, commdirmig, migrates LDAP directory data to Schema 2. It performs the following tasks:
Converts the two-tree DIT structure to a one-tree structure.
Adds Access Manager object classes, attributes, and ACIs to the domain and user entries. These attributes enable Access Manager to perform single sign-on (SSO) authentication against the LDAP entries.
During the migration to Schema 2, the commdirmig utility preserves the DC Tree. This feature allows existing 5.x servers to continue to use the LDAP directory even after it has been migrated to Schema 2.