IBM Systems Magazine, Mainframe Edition - March/April 2013 - (Page 16)

IT Today Addressing IT challenges worldwide The Right Fit? By Joe Temple M atching workloads to IBM System z* requires careful consideration. This article outlines the process from a high-level viewpoint but one that’s still technically credible and consistent. While much of this discussion is applicable to other platforms, our focus will be on the mainframe perspective. The IBM System z platform is a computer, which means it can be programmed. Given code, it can run any workload. In fact, any computer can run any workload as long as the code to perform the work is available. Thus, the initial three questions to ask about an existing workload are: 1 Will the code run on System z? If the answer is yes, the workload is a candidate to run on the mainframe. It’s also important to note that the workload is a candidate to run anywhere the code is available. Therefore, code availability for the platform is a necessary consideration but not sufficient to determine workload fit. 16 MARCH/APRIL 2013 2 If we put the workload on System z, will it run well? Traditionally, workloads with high I/O content were a good match for System z. This is still true, but large enterprise UNIX* machines— particularly IBM Power Systems* servers—have considerable I/O capability, including the capability to virtualize the I/O using processor cores and internal networking. Accordingly, a high I/O rate doesn’t necessarily make a workload a slam dunk for System z, but it does point to a good candidate. 3 How much memory and storage does the application require? During the client-server boom of the ’90s, many applications were written ILLUSTRATION BY RICHARD BORGE / THEISPOT.COM Running highly stacked workloads on System z can greatly reduce cost per unit of work http://www.THEISPOT.COM

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe Edition - March/April 2013

Table of Contents
Editor's Desk: Virtual Argument Over Cloud
IBM Perspective: The Perfect IT Combination
Data Display: IBM Mainframe: A Leader in Energy Efficiency
Trends: Batch Modernization Redefines Application Development
IT Today: Running Highly Stacked Workloads on System z Can Greatly Reduce Cost Per Unit of Work
Cover Story: Breaking Through Complexity: IBM Entry Cloud Configuration for SAP Solutions bring simplicity and efficiency
Feature: Reach Cloud's Potential: Build your IT environment with IBM zEnterprise and SmartCloud
Tech Corner: System z Virtualization Environment Provides Far Lower TCA Than Its Intel Alternative
Solutions: CA Database Management Solutions for DB2 for z/OS, and CA Mainframe Chorus; Attachmate Reflection 2011 R3; PerfTechPro for z/OS; Compuware APM for Mainframe
Advertisers Index
Stop Run
Reference Point - Global Events, Education, Resources for Mainframe
Special Report: Mobile Mainframe
2013 Mainframe Buyer's Guide Index

IBM Systems Magazine, Mainframe Edition - March/April 2013