IBM Systems Magazine, Mainframe Edition - March/April 2012 - 32

industry studied, the System z environment provided a savings of at least 20 percent over distributed computing environments. Rubin’s findings illustrate, in business terms, the value that System z technology can offer a company.

Three Technological Advantages How are these savings possible? When comparing the mainframe to distributed system designs, it has three distinct design advantages:
1 Network, bus, I/O subsystem structure 2 Processor design 3 Ability to recover unused processing cycles and rapidly return them to a virtualized pool, leading to outstanding utilization rates A closer look at the System z network, bus, I/O subsystem design reveals why mainframes communicate more efficiently than distributed systems. Distributed systems rely heavily on networks to pass information between servers and fetch data from databases. And networks can easily become congested—especially during peak workload time. Mainframes, on the other hand, have a large, high-bandwidth internal bus and a supporting subsystem of specialized I/O processors, which enable applications to work efficiently and cooperatively with one another without running into the network congestion that plagues

distributed computing designs. Further, the System z platform can be tightly coupled to external, back-end databases, delivering data at high speeds to the processors performing the work. Next, consider the System z microprocessor. Microprocessors handle three types of tasks: parallel, serial and data-intensive computing. The mainframe stands out because it’s good at all three tasks. At 5.2 GHz, the System z microprocessor is the fastest in the industry. Processing speed is important because a faster processor can get more work done at a lower cost. So the System z processing capabilities, therefore, can forestall the need to purchase additional servers while reducing the number of required software licenses. In addition, the System z Integrated Information Processor (zIIP) further extends performance advantages over the distributed-computing architecture. (IBM builds several System z specialty processors like zIIP, optimized to perform certain tasks.) Using the same general-purpose processor—but driving that microprocessor with

different microcode—IBM has expeditiously served the DB2* database, delivering exponential increases in database and business analytics performance over generalpurpose processors. Another design advantage of System z technology is its utilization rate. Research demonstrates mainframes offer better utilization rates than low-end servers, primarily because its design returns resources to a resource pool where they can be used by other applications that need processing power. This resource handling—also referred to as virtualization—enables a System z platform to offer better value than servers that can only be utilized at a rate of 40 to 60 percent. Mainframes, on the other hand, are capable of operating at 100 percent utilization for sustained periods of time. This can translate to a better ROI for IT managers. From a systems-design perspective, it’s important to note that a mainframe can be deployed as a hybrid computing environment, capable of integrating workloads that span z/OS*, Linux* on System z, z/VM*, AIX*, Linux, Microsoft* Windows*

Rubin Worldwide research discovered:
Financial institutions can reduce IT processing costs per transaction by up to Consumer loan businesses can reduce such costs by up to Airline-processing costs per passenger can be lowered by



IBM Systems Magazine, Mainframe Edition - March/April 2012

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe Edition - March/April 2012

IBM Systems Magazine, Mainframe Edition - March/April 2012
Table of Contents
Editor’s Desk: Rethinking System z
IBM Perspective: Smarter Computing, Enterprise Modernization and the Mainframe
Insider: Proper Tools Can Bring Flexibility to Application Development
IT Today: Six Things You Didn't Know About the Modern Mainframe
Trends: Seven Reasons IT Projects Fail
Cover Story: Agile Thinking: How to leverage existing technology to gain a competitive advantage
Features: All Together Now: A centralized business analytics environment delivers great value
Improving Upon the Gold Standard: System z pushes the limits of high availability
Tech Corner: Processor Design Innovations Empower the z196
Developer: Accurate Project Scoping Helps Map Out a Faster Route to Success
Solutions/Advertiser's Index: PASSPORT Host Integration Objects - LegaSuite 6
Stop Run: Mainframer Clarence Golson Reflects on a Diverse Career Built on a Single Platform
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Intro
IBM Systems Magazine, Mainframe Edition - March/April 2012 - IBM Systems Magazine, Mainframe Edition - March/April 2012
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Cover2
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 1
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Table of Contents
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 3
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 4
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 5
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Editor’s Desk: Rethinking System z
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 7
IBM Systems Magazine, Mainframe Edition - March/April 2012 - IBM Perspective: Smarter Computing, Enterprise Modernization and the Mainframe
IBM Systems Magazine, Mainframe Edition - March/April 2012 - I1
IBM Systems Magazine, Mainframe Edition - March/April 2012 - I2
IBM Systems Magazine, Mainframe Edition - March/April 2012 - I3
IBM Systems Magazine, Mainframe Edition - March/April 2012 - I4
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 9
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Insider: Proper Tools Can Bring Flexibility to Application Development
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 11
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 12
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 13
IBM Systems Magazine, Mainframe Edition - March/April 2012 - IT Today: Six Things You Didn't Know About the Modern Mainframe
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 15
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 16
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 17
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Trends: Seven Reasons IT Projects Fail
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 19
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 20
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 21
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 22
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 23
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Cover Story: Agile Thinking: How to leverage existing technology to gain a competitive advantage
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 25
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 26
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 27
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 28
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 29
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Features: All Together Now: A centralized business analytics environment delivers great value
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 31
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 32
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 33
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Improving Upon the Gold Standard: System z pushes the limits of high availability
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 35
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 36
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 37
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 38
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 39
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Tech Corner: Processor Design Innovations Empower the z196
IBM Systems Magazine, Mainframe Edition - March/April 2012 - V1
IBM Systems Magazine, Mainframe Edition - March/April 2012 - V2
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 41
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 42
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 43
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Developer: Accurate Project Scoping Helps Map Out a Faster Route to Success
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 45
IBM Systems Magazine, Mainframe Edition - March/April 2012 - 46
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Solutions/Advertiser's Index: PASSPORT Host Integration Objects - LegaSuite 6
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Stop Run: Mainframer Clarence Golson Reflects on a Diverse Career Built on a Single Platform
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Cover3
IBM Systems Magazine, Mainframe Edition - March/April 2012 - Cover4
IBM Systems Magazine, Mainframe Edition - March/April 2012 - RF1
IBM Systems Magazine, Mainframe Edition - March/April 2012 - BG1
IBM Systems Magazine, Mainframe Edition - March/April 2012 - BG2
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