Bits & Bytes online Edition


Hermann Lederer, Markus Rampp

Data stored in HPSS exceeds 100 PB

In 2011 the RZG introduced HPSS as the major Hierarchical Storage Management (HSM) system. HPSS has been developed by a consortium of major Department of Energy sites in the US and is maintained by IBM. The introduction of HPSS was triggered by the increased demands for disk-to-tape bandwidth through the support of multiple streams. Recently, the amount of data stored in HPSS has surpassed the 100 PB threshold, and in the list of publicly disclosed HPSS deployments, as published in, the MPCDF belongs to the top 10 scientific data centers worldwide; more precisely, the MPCDF has been ranked as no. 8 and is the first entry for Germany.

IAEA challenge award for IPP/MPCDF team

In 2018 the International Atomic Energy Agency IAEA published a challenge for the analysis of material defects from molecular dynamics simulations, the "IAEA Challenge on Materials for Fusion". For the competition, the IAEA provided datasets which described the positions of all tungsten or iron atoms 40 ps after a fast particle impacting the originally perfect metal crystal. From the large datasets of several million atom coordinates per simulation the changes in the crystal induced by the impact had to be identified. A team of scientists from the Max Planck Institute for Plasma Physics (IPP) and the MPCDF was awarded with the first prize (5000 EUR) out of many proposals from all over the world, and was invited to present their results at the IAEA headquarters in Vienna. The methodology and developed software is described at the IAEA webpage and can be made available by the authors on request.