Michael J. Mueller IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (mulmde.ibm.com). Mr. Mueller is a Senior Technical Staff Member responsible for the platform architecture and design of the RAS functions for IBM iSeries*, pSeries*, and zSeries eServers. He received his Dipl. Ing. degree in electrical engineering from the University of Stuttgart, Germany. Mr. Mueller has held various positions in S/390 firmware development and system design.

Ulrich Weiss IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (uweissde.ibm.com). Mr. Weiss is responsible for the oscillator generation and distribution function on IBM zSeries and pSeries eServers. He has worked on the clocking of high-performance chips, high-performance system oscillator generation, and distribution and chip-pervasive functions.

Tobias Webel IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (webelde.ibm.com). Mr. Webel is a Senior Development Engineer responsible for processor hardware development of RAS functions on IBM zSeries and pSeries eServers. He received his Dipl. Ing. degree in electrical engineering from the University of Stuttgart, Germany. Mr. Tobias is one of the leading hardware design engineers responsible for the transition of the system run control structure on zSeries 900 to a multibook system, including RAS aspects.

Luiz C. Alves IBM Systems and Technology Group, 2455 South Road, Poughkeepsie, New York 12601 (alvesus.ibm.com). Mr. Alves is a Senior Technical Staff Member working in z9 system assurance. He received his B.S. degree from New York University and his M.S. degree from Polytechnic Institute of New York, both in electrical engineering. He was previously the RAS manager for the 9021 processor families and is currently responsible for defining RAS requirements for future products.

William J. Clarke IBM Systems and Technology Group, 2455 South Road, Poughkeepsie, New York 12601 (wjclarkeus.ibm.com). Mr. Clarke is an Advisory Engineer working in z9 system assurance. He received his B.S. degree in electrical engineering from Rutgers University. He previously worked on the storage subsystem for the IBM 3090* processor, logic design, recovery systems test, and zSeries product engineering. Mr. Clarke currently defines RAS requirements for future products.

Markus Strasser IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (markus.strasserde.ibm.com). Dr. Strasser works in firmware development. Prior to joining IBM, he was with the distributed systems group of Stuttgart University, Germany. He received an M.A. degree and a Ph.D. degree in computer science, both from the University of Stuttgart. Dr. Strasser's current primary responsibility is the development of zSeries firmware.

Eberhard Engler IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (eenglerde.ibm.com). Mr. Engler received an M.S. degree in physics (Dipl. Phys.) from the University of Tuebingen, Germany. He worked initially on a handheld data acquisition system, later joining S/390 firmware development. Mr. Engler works primarily in the areas of IBM Sysplex Timer and TOD clock synchronization, service word communication, and on demand functionality.

Giovanni Cautillo IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (cautillode.ibm.com). Mr. Cautillo received his Dipl. Ing. (FH) degree in information technology from the Esslingen University of Applied Sciences, Germany. He joined the IBM Development Laboratories at Boeblingen in 2003 after working for several years as an application developer. Mr. Cautillo's current main responsibility is the development of firmware for zSeries servers.

Harm Osterndorf IBM Systems and Technology Group, IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (osterndode.ibm.com). Mr. Osterndorf received his Dipl. Ing. degree in computer science from the Berufsakademie Stuttgart, Germany. He joined IBM zSeries firmware development in 1993.

Joerg Schulze IBM Systems and Technology Group, IBM Deutschland Entwicklung GmBH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (jschulzede.ibm.com). Mr. Schulze studied physics and computer science at the Technical University of Braunschweig, Germany, and received an M.A. degree in physics. In 1999 he joined IBM, where he works primarily in firmware development.

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