The Illustra DBMS (now owned by Informix Software, Inc.) is the primary catalog DBMS for the WP. Currently, we serve the full catalog and gazetteer with Illustra version 3.2 on Solaris, and a smaller California-only catalog and gazetteer with Illustra version 2.4 on Digital UNIX. Our 6M-record gazetteer is one of the largest spatial databases supported by Illustra.
Under the terms of the agreement whereby Illustra commercialized the UC-developed Postgres DBMS, UCSB received a permanent 25-user Illustra license. This license is currently split so that ADL receives up to 10 simultaneous users (which, due the implementation of Illustra licenses, actually provides at least 300 simultaneous connections to an Illustra server). In purchasing Illustra, Informix has assumed this obligation for the Illustra server's successor products. Informix has also provided free, informal technical support in the form of documentation, email consulting, and (most notably) an expedited fix for a serious spatial indexing bug. We are currently negotiating with Informix to formalize and expand their relationship with ADL.