Biographical sketches of authors

Christine Axnix IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (caxnix@de.ibm.com). Mrs. Axnix received the Dipl. Ing. degree in electrical engineering from the Berufsakademie, Stuttgart, Germany, in 1989. That same year she joined the IBM Development Laboratories in Boeblingen in the Product Assurance Group, where she worked on S/390 processor and coupling architecture verification test programs. In 1993, she joined the CEC Firmware Development Department, where she has worked on various S/390 and zSeries projects in the i390 code area, including the support element–CEC communication interface and CUoD/CBU. She is currently working on the LIC design and code development in the areas of initial firmware load and concurrent maintenance for the eServer z990 follow-on products.

Eberhard Engler IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (eengler@de.ibm.com). Mr. Engler received an M.S. degree in physics (Dipl. Phys.) from the University of Tuebingen, Germany, in 1995. In 1996, he joined the IBM Development Laboratories in Boeblingen, working on a handheld data acquisition system. That same year he joined S/390 microcode development, where he is primarily responsible for service-word communication, CECDUMP, and TOD/ETR code.

Stefan Hegewald IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (hes@de.ibm.com). Mr. Hegewald received the Dipl. Ing. (FH) degree in microsystems and precision engineering from the University of Applied Sciences in Karlsruhe, Germany, in 1981. He joined IBM that same year as a process engineer in the chip manufacturing organization in Sindelfingen, Germany. After retraining in 1986 and 1987, he held a number of positions in design, development, and test of text retrieval and DB/2 text extender. From 1997 to 1999, he contributed to the automotive division with IBM Telematic Solutions. Since 1999, Mr. Hegewald has worked on various S/390 projects, especially the design and implementation of concurrent memory upgrade and concurrent CBU undo. Mr. Hegewald led the overall i390 communication handler development effort. He is currently working on the 9037 Model 2 Sysplex Timer follow-on product.

Thomas Hesmer IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (thomas.hesmer@de.ibm.com). Mr. Hesmer is a Staff Engineer currently working on zSeries flexible support processor (FSP) applications. He studied electrical, electronic, and automation engineering at the Berufsakademie, Stuttgart, and graduated in 1994, receiving a Diplom-Ingenieur (B.A.) degree. After two years of self-employment and four years of employment as an electronic and software engineer, he joined IBM in 2000 at the Boeblingen Development Laboratory. Since then he has worked on the design and implementation of the service and control network applications for the zServer cage controller. Currently, Mr. Hesmer focuses on the transition of the FSP software from OSOPEN to Linux.

Martin Kuenzel IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (kuenzel@de.ibm.com). Dr. Kuenzel joined the IBM Boeblingen Laboratories after completing his Ph.D. thesis in solid-state physics at the RWTH, Aachen. Since then he has worked in various areas in the zSeries Support Element Development Department of the IBM Systems Group. As the team leader of the Cage Communication Support Layer Team, he was responsible for the transition to the new CCSL structure on the support element. Since 2003, Dr. Kuenzel has been on international assignment, working for the IBM Endicott Laboratory.

Friedrich Michael Welter IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (fmwelter@de.ibm.com). Mr. Welter received a Dipl. Inf. (FH) degree in computer science from the University of Applied Sciences, Wuerzburg, Germany, in 2000. He joined IBM that same year, working on the design and implementation of base services for the support element and the design and implementation of simulation components. His work currently focuses on the transition of the support element software to Linux.