Security measures to prevent terrorist attacks and other threats must be balanced against the possible loss of privacy that arises when personal information is collected in support of such measures. This issue of the journal contains eight papers that focus on various aspects of the challenge of harmonizing security and privacy requirements. These include the analysis of privacy and security policies, privacy regulations in various countries, and a policy framework for security and privacy management. The issue also contains a non-topical paper that deals with fine-grained recovery in enterprise storage controllers.
The IBM System z10 Enterprise Class server is a powerful mainframe system offering increased power efficiency, improved price/performance ratio, and expanded range of business solutions. It delivers high scalability for growth and large-scale consolidation, high availability to reduce risk and improve flexibility, and enhanced security. The 17 papers in this issue describe the design, testing, and verification of the z10 microprocessor, the I/O subsystem, and the packaging design of the central electronic complex. System software and performance are described in papers dealing with reliability, availability, and serviceability, autonomic capability and active resource monitoring, capacity-on-demand advancements, and performance improvements derived through novel software and hardware synergy.
Businesses rely on their IT systems infrastructures for mission-critical data and applications. The business impact of even brief failures has led to the need for continuous (or nearly continuous) IT service availability in all circumstances, including disaster conditions. Individual systems can fail, but the end-to-end IT systems infrastructure must always be there to service the business. This issue of the IBM Systems Journal contains 15 papers that describe alternative infrastructure designs and system platform technologies being deployed or proposed by IBM and some of its clients to successfully meet this continuous availability challenge.
Historically, the steady growth of computer system performance depended on the performance of microprocessors, which depended on the scaling of devices and circuits to smaller dimensions. As scaling on the 2D surface of chips approaches practical limits, 3D technologies offer an opportunity for continued system improvements, even as the progress of scaling slows down. The eight papers in this issue describe the system design opportunities and challenges of 3D chip technology, as well as methods for producing dense arrays of through-silicon vias, thinned silicon, dense area-array silicon-silicon interconnection, chip stacking, and 3D wafer integration. Thermomechanical modeling and the implementation of 3D structures in products are also described.
As many businesses, applications, and platforms make the transition to a service-oriented architecture (SOA), significant changes are required in business process design as well as in modeling and solution development. To this end, innovative techniques, tools, and methodologies from a variety of SOA deployments are being developed for use in future solutions. This issue contains eight papers which describe challenges and insights related to modeling, testing, and governance, which have emerged from SOA engagements in a variety of industries.
Technology shifts and market forces are changing the composition and design of storage systems. Topics for this diverse issue include the emergence of nonvolatile storage technologies, virtualization technologies that reduce the distinction between storage and computing platforms, advances in tape densities, the growing use of commodity and distributed storage, and the increasing importance of error and disaster recovery, autonomic storage management, petascale file and archival storage, and long-term data preservation.
Due to the growing demands for responsiveness in business processes, command-and-control systems, and embedded systems, the deployment rate of responsive systems is increasing. This issue of the Journal is dedicated to responsive systems, a class of systems that includes real-time and event-based systems. An introductory paper, authored by the issue coordinators, is followed by ten papers that cover platforms, middleware, and development support for responsive systems.
Radiation can cause transistors to change their state and induce soft errors in computers. As transistor density and performance of CMOS (complementary metal-oxide semiconductor) devices increase, the reduced transistor size and low-power operation of the devices require that greater emphasis be placed on the understanding and control of soft errors in devices, circuits, and final system applications. The nine papers in this issue highlight the current understanding of the soft error rate (SER) in CMOS devices, circuits, and servers. The role of alpha-particles (helium nuclei), mitigation strategies, physics-based nuclear models, device design, treatment of experimental data, and strategies for reducing SERs in complex servers are described and reviewed.
Recognizing the growing significance of service innovation in the global economy, many in academia and industry have suggested that there is a need for a new science of service systems whose chief goal is the development of efficient and scalable methods for service system analysis, design, implementation, and delivery. This issue presents 14 papers on a variety of aspects of service science, management, and engineering in an effort to help define and promote research in this emerging multidisciplinary field.
Since the first publication of the IBM Journal of Research and Development in 1957 and the IBM Systems Journal in 1962, these Journals have provided descriptions and chronicles of many important advances in information technology and related topics ranging from atoms to business solutions. To celebrate the 50th anniversary of the IBM Journals, this report highlights a selection of significant papers published in the Journals, along with brief commentaries. The Journal editors chose papers which were very highly cited in the technical literature, described technologies of historic significance, or provided an important overview of a field.