Biographical sketches of authors

William J. Rooney   IBM Server Group, 2455 South Road, Poughkeepsie, New York 12601 (wrooney@us.ibm.com). Mr. Rooney is a Senior Technical Staff Member in the zSeries Software System Design Department. He received a B.S. degree in computer science from the New York Institute of Technology in 1978 and an M.S. degree in computer science from Syracuse University in 1984. During his 24 years of service for IBM, he has worked on device allocation, software litigation, Parallel Sysplex prototyping, and porting of UNIX applications to OS/390 UNIX System Services. He is currently responsible for design of I/O functions, and is the lead designer for dynamic channel path management.

Jeffrey P. Kubala   IBM Server Group, 2455 South Road, Poughkeepsie, New York 12601 (kubes@us.ibm.com). Mr. Kubala is a Senior Technical Staff Member in the LPAR Design and Development Department and is currently the technical team leader for the zSeries LPAR hypervisor. He received a B.S.E. degree in computer engineering from the University of Connecticut and joined IBM in 1981. Since then, he has worked on compiler design and development, OS/390 Hiperbatch, and S/390 and zSeries logical partitioning. In addition to his role as the zSeries LPAR hypervisor technical team leader, he is actively engaged with the iSeries and pSeries hypervisor teams as a technical consultant.

Juergen Maergner   IBM Deutschland Entwicklung GmbH, Schoenaicherstrasse 220, 71032 Boeblingen, Germany (jmaergner@de.ibm.com). Mr. Maergner is a Senior Engineer, working on future I/O attachments for zSeries systems. He received a master's degree in electrical engineering from the Technical University of Berlin, Germany, and joined IBM in 1970. Since then, he has worked primarily in the area of channel subsystem design and I/O attachments for S/370, S/390, and z/900 systems. He is currently active in the standards community as chairman of both national and international standards committees in the fields of interconnection of computer systems and attached equipment.

Peter B. Yocom   IBM Server Group, 2455 South Road, Poughkeepsie, New York 12601 (yocom@us.ibm.com). Mr. Yocom is a Senior Technical Staff Member in the WLM/SRM Design and Development Department. He received B.S. and M.S. degrees in computer science from Rensselaer Polytechnic Institute in 1985 and 1986, respectively. He subsequently joined IBM, where he has worked on the real storage manager, the I/O supervisor, and workload manager components of z/OS. He is currently the lead designer for the z/OS workload manager component.