Jim Hoskins, Bob Frank, «Exploring IBM eServer zSeries and S/390 Servers»
Maximum Press | ISBN: 1885068913 | 2004 | PDF | 464 pages | 4.58 MB
The IBM press release that announced the new IBM eServer zSeries described how it differed from its predecessors. It called the z900 the first mainframe built from scratch with e-business as its primary function— with the ability to run up to hundreds of virtual servers within one physical box and the capability to replace racks full of competitive servers. It also outlined its new 64-bit operating system, z/OS, as well as new software pricing, designed to let customers pay based on what they use instead of total system capacity. The new zSeries set high standards, but what has transpired during the past two years has surprised even the most enthusiastic mainframe supporters.