Directory Server stores information in the following locations:
If the contents of the directory change regularly, you should save your database library and the objects in it on a regular basis. Configuration data is also stored in the following directory:
/QIBM/UserData/OS400/Dirsrv/
You should also save the files in that directory whenever you change the configuration or apply PTFs.
See Backup and Recovery, SC41-5304 for information about saving and restoring data.