Increasing the global log level alone might not display all the log entries from the Directory Server Plug-in. Editing Directory Server's cn=config entry might also be required. To enable more informational logging, set the following attributes in Directory Server's cn=config entry.
This entry can be manipulated over LDAP while Directory Server is running, or by editing the dse.ldif file when Directory Server is not running.
nsslapd-infolog-area is a bit-mask entry. If it already has a value, bit-wise OR in the 16th least-significant bit into the value.
To enable additional logging, set the attributes in Directory Server's cn=config entry as follows: