When Essbase is started using the latest, valid security backup file (essbase_timestamp.bak) instead of essbase.sec, you can use the alter system MaxL statement to reconcile the security file to match the state of Essbase applications and databases on an external disk.
The alter system reconcile grammar logs messages in essbase.log when:
An application or database folder is on the disk but not in the security file
An application or database is in the security file but not on the disk. In this scenario, using the alter system reconcile force grammar removes the application or database from the security file.