Stanford Linear Accelerator (SLAC)
As of November, 2004, the Stanford Linear Accelerator Center (SLAC) stored over 895 terabytes of production data using Objectivity/DB. The production data is distributed across 100 on-line servers, using 2000 CPUs. SLAC uses Objectivity/DB for its flagship research project named B Factory, which includes the PEP II accelerator and the BaBar particle detector. The BaBar experiment -- a collaboration of 600 physicists from nine nations -- observes collisions between subatomic particles to understand how the behavior of matter and antimatter shaped our universe.
All BaBar data is stored in an Objectivity/DB database federation running in a heterogeneous environment comprised of Solaris and Linux platforms, using the C++ and Java languages. SLAC has collaborated with Objectivity Inc. to create the Objectivity Open File System, which provides a transparent interface between Objectivity/DB and SLAC's High Performance Storage System.
More on the general topic: Myth: ODBMS Products Do Not Scale