Current Computing Equipment

The current version of ADL testbed is powered by three systems:

1. A Digital AlphaServer 4100/500 with 2 processors, 2 GB RAM and a 312 GB of disk space, runs AOL Web Server 2.2 which is extended to host the ADL Middleware Component, the XEROX PARC map rendering engine for the ADL Mapbrowser Component, and Oracle RDBMS. The machine is also used for data processing and storage.

2. A Sun SPARC Ultra 1 workstation with 256 MB RAM and 10 GB disk, runs the Informix Universal RDBMS version 9.13 with MapInfo Spatialware 3.0 DataBlade. The Informix Universal RDBMS hosts all ADL databases which includes the Catalog, Gazetteer, California Earthquakes, Volcanoes, and California GeoRef.

3. A Digital Alpha/AXP 3000/800 with 256 MB RAM and 52 GB of disk, runs ftp server for part of ADL data storage component and the other part of the data storage component is hosted in the San Diego Supercomputer Center (SDSC) via the Storage Request Broker System developed by the SDSC. It also hosts the Alexandria Digital Library Web Server and supports an old version ADL testbed system.

In addition, the ADL development team uses 4 Digital AlphaStation 200 4/166 systems, 1 Sun SPARCserver 1000, 1 SGI O2, and 7 Pentium/Windows NT systems for regular research and development activities.