IBM Systems Magazine, Mainframe - March/April 2009 - 15

roughly 20 percent of the total the cost. To achieve operational efficiency, cloud-computing providers leverage automation and vir tualization. Building cloud ser vices with a mainframe delivers system automation that allows data centers to respond to huge variations in workload demand from moment to moment without manual inter vention, allowing a small team to manage and operate the equivalent of hundreds of Intel* and RISC top-end servers, reducing labor costs. In a 2007 IBM Systems Magazine article (www. ibmsystemsmag.com/mainframe/administrator/17456p1.aspx), a transportation clearinghouse manager said he serves 162 different customers and more than 3 million users, with six mainframe administrators. If you’re running a distributedcomputing environment, imagine how many IT systems, storage managers and administrators you’d need to serve 3 million users. Figure the cost for employee salar y and benefits for all of those people, and suddenly mainframe pricing looks comparatively inexpensive. A mainframe can run comfortably with utilization rates at close to 100-percent capacity while meeting demanding interactive response-time targets for tens of thousands of users on a single box. Another key advantage to mainframe cloud computing is energy efficiency. The Environmental Protection Agency (EPA) has focused on power-supply efficiency as the key to energy-efficient servers, a feature which IBM’s high-end servers (System z* and Power* Systems servers) already have. IBM is moving its workload off of 3,900 mid-range servers to 30 mainframes, resulting in energy savings of 80 percent and f loor space reduction of 85 percent. A comparison of annual energy costs shows a distributed solution consuming 38,400 kW of electricity with costs of $3,840, while the same solution on a mainframe uses 7,673 kW at a cost of $767. Once a mainframe is installed, the incremental addition of a Linux* engine consumes only 20 watts, enabling you to add entirely new server environments with minimal energy consumption. Taking Root While much of the hype around cloud computing would make it seem this is all new, much mainframe technology pre-dates this new fascination. As we rush into the future with cloud computing, let’s revisit the past to identify the roots of this movement that makes the mainframe a perfect fit. M A R C H/A PRIL 2009 ibmsystemsmag.com/mainframe 15
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IBM Systems Magazine, Mainframe - March/April 2009

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe - March/April 2009

IBM Systems Magazine, Mainframe - March/April 2009
Table of Contents
Editor's Desk
Trends:  Improvements to IMS Make it a First-Rate Data-Management Solution
IT Today:  Cloud Computing Helps Reduce Spending and Increase ROI
Case Study:  Wakefern Food Corporation exchanges an aging solution for a new, more functional systems to accelerate date transfers
Cover Story:  After 45 Years, Innovation Brings the Mainframe Full Circle
Feature:  Innovation Keeps the Mainframe on Track to Meet Changing BI Needs
Administrator:  Performance Toolkit for z/VM
Developer: Options for Optimizing Web-Service Creation
Mainframe's 45-Year Timeline
Technical Corner:  A System Programmer's Guide to Data Warehousing
Advertiser Index
Product News
Stop Run:  Readers Share Their Mainframe Memories
IBM Systems Magazine, Mainframe - March/April 2009 - IBM Systems Magazine, Mainframe - March/April 2009
IBM Systems Magazine, Mainframe - March/April 2009 - Cover2
IBM Systems Magazine, Mainframe - March/April 2009 - 1
IBM Systems Magazine, Mainframe - March/April 2009 - Table of Contents
IBM Systems Magazine, Mainframe - March/April 2009 - 3
IBM Systems Magazine, Mainframe - March/April 2009 - 4
IBM Systems Magazine, Mainframe - March/April 2009 - 5
IBM Systems Magazine, Mainframe - March/April 2009 - 6
IBM Systems Magazine, Mainframe - March/April 2009 - 7
IBM Systems Magazine, Mainframe - March/April 2009 - Editor's Desk
IBM Systems Magazine, Mainframe - March/April 2009 - 9
IBM Systems Magazine, Mainframe - March/April 2009 - Trends:  Improvements to IMS Make it a First-Rate Data-Management Solution
IBM Systems Magazine, Mainframe - March/April 2009 - 11
IBM Systems Magazine, Mainframe - March/April 2009 - 12
IBM Systems Magazine, Mainframe - March/April 2009 - 13
IBM Systems Magazine, Mainframe - March/April 2009 - IT Today:  Cloud Computing Helps Reduce Spending and Increase ROI
IBM Systems Magazine, Mainframe - March/April 2009 - 15
IBM Systems Magazine, Mainframe - March/April 2009 - 16
IBM Systems Magazine, Mainframe - March/April 2009 - 16a
IBM Systems Magazine, Mainframe - March/April 2009 - 16b
IBM Systems Magazine, Mainframe - March/April 2009 - 17
IBM Systems Magazine, Mainframe - March/April 2009 - Case Study:  Wakefern Food Corporation exchanges an aging solution for a new, more functional systems to accelerate date transfers
IBM Systems Magazine, Mainframe - March/April 2009 - 19
IBM Systems Magazine, Mainframe - March/April 2009 - 20
IBM Systems Magazine, Mainframe - March/April 2009 - 21
IBM Systems Magazine, Mainframe - March/April 2009 - 22
IBM Systems Magazine, Mainframe - March/April 2009 - 23
IBM Systems Magazine, Mainframe - March/April 2009 - Cover Story:  After 45 Years, Innovation Brings the Mainframe Full Circle
IBM Systems Magazine, Mainframe - March/April 2009 - 25
IBM Systems Magazine, Mainframe - March/April 2009 - 26
IBM Systems Magazine, Mainframe - March/April 2009 - 27
IBM Systems Magazine, Mainframe - March/April 2009 - 28
IBM Systems Magazine, Mainframe - March/April 2009 - 29
IBM Systems Magazine, Mainframe - March/April 2009 - Feature:  Innovation Keeps the Mainframe on Track to Meet Changing BI Needs
IBM Systems Magazine, Mainframe - March/April 2009 - 31
IBM Systems Magazine, Mainframe - March/April 2009 - 32
IBM Systems Magazine, Mainframe - March/April 2009 - 33
IBM Systems Magazine, Mainframe - March/April 2009 - 34
IBM Systems Magazine, Mainframe - March/April 2009 - 35
IBM Systems Magazine, Mainframe - March/April 2009 - Administrator:  Performance Toolkit for z/VM
IBM Systems Magazine, Mainframe - March/April 2009 - 37
IBM Systems Magazine, Mainframe - March/April 2009 - 38
IBM Systems Magazine, Mainframe - March/April 2009 - 39
IBM Systems Magazine, Mainframe - March/April 2009 - Developer: Options for Optimizing Web-Service Creation
IBM Systems Magazine, Mainframe - March/April 2009 - Mainframe's 45-Year Timeline
IBM Systems Magazine, Mainframe - March/April 2009 - M2
IBM Systems Magazine, Mainframe - March/April 2009 - M3
IBM Systems Magazine, Mainframe - March/April 2009 - M4
IBM Systems Magazine, Mainframe - March/April 2009 - 41
IBM Systems Magazine, Mainframe - March/April 2009 - 42
IBM Systems Magazine, Mainframe - March/April 2009 - 43
IBM Systems Magazine, Mainframe - March/April 2009 - Technical Corner:  A System Programmer's Guide to Data Warehousing
IBM Systems Magazine, Mainframe - March/April 2009 - 45
IBM Systems Magazine, Mainframe - March/April 2009 - 46
IBM Systems Magazine, Mainframe - March/April 2009 - Product News
IBM Systems Magazine, Mainframe - March/April 2009 - Stop Run:  Readers Share Their Mainframe Memories
IBM Systems Magazine, Mainframe - March/April 2009 - Cover3
IBM Systems Magazine, Mainframe - March/April 2009 - Cover4
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