Biographical sketches of authors

Ira G. Siegel IBM Systems and Technology Group, 2455 South Road, Poughkeepsie, New York 12601 (isiegel@us.ibm.com). Mr. Siegel is a Staff Software Engineer supporting development in the zSeries LPAR hypervisor. He received a B.S. degree in zoology from Rutgers University and an M.S. degree in computer science from Villanova University. Since joining IBM in 1989, he has worked on LPARs, developing such diverse items as dynamic storage reconfiguration, concurrent patch, and concurrent CPU upgrade.

Beth A. Glendening IBM Systems and Technology Group, 2455 South Road, Poughkeepsie, New York 12601 (glenden@us.ibm.com). Ms. Glendening is a Senior Programmer in the z/OS Core Technical Design Team Department. She received a B.S. degree in chemical engineering from Rensselaer Polytechnic Institute and an M.S. degree in computer science from Union College, joining IBM in 1982. Since then, she has worked on S/390 architecture verification test tools, z/OS workload management development, z/OS RACF development, porting Tivoli applications to the z/OS platform, and zSeries logical partitioning.

Jeffrey P. Kubala IBM Systems and Technology Group, 2455 South Road, Poughkeepsie, New York 12601 (kubes@us.ibm.com). Mr. Kubala is a Senior Technical Staff Member in the z/OS Core Technical Design Team Department; he 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, joining 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.