FDB (fast db?) - off the top of my head, seems unique enough
What's in a name... Apparently "MDB" is already a well-known suffix for Microsoft Access database files. "mdb" is also the name of a debugger tool in Solaris. To avoid confusion with those unrelated items, it might be a good idea to rename our MDB to something else. Now, before the next OpenLDAP release is published. Comments?