IBM Systems Magazine, Mainframe Edition - March/April 2013 - 19

integrates an IT solution from end to
end. When this end-to-end integration
model is married with a zEnterprise*
System, zEnterprise BladeCenter*
Extension (zBX) blades can provide
stacking scale that might otherwise
detract from the solution.
The second infrastructure
architecture form is consolidated
services. In this model, services instances
of the same type share a consolidated
infrastructure. This lacks the integration
of the end-to-end model but does provide
management efficiencies with regard
to utilization, maintenance, problem
determination, etc.
The first architecture leads to
individual candidates for Linux* on
System z and zBX, while the second
can have significant stacking on shared
resources and, therefore, become a

candidate for System z. The mainframe
generally assumes considerable stacking
and resource sharing.

Cost Per Unit of Work
We’ve seen that when sharing
resources, the metric to keep in mind
is the cost per unit of work, which
is largely driven by software costs
that, in turn, are driven by the cores
required to do the work. Additionally,
I/O and memory can be drivers for
enterprise class machines, including
Power and System z. The choice will
depend on local factors and nuances
about sharing or partitioning I/O
resources—not simply the aggregate
I/O bandwidth.
Because System z costs are based
on considerable stacking, it makes
sense to keep it busy with loads that

stack well. The fast threads and
large caches on System z make it
well suited for deeply stacked work,
particularly, when the number of loads
contained and their response times
are the critical metrics—rather than
the maximum ITR. As individual
pieces of work use larger shares of
system resources, ITR becomes more
important. Conversely, as those pieces
of work increase, the ITR becomes less
so. Solution architecture also
has an impact.
In the end, it comes down to: If it
will stack, it’s a candidate.

ibmsystemsmag.com/mainframe

Joe Temple is a senior
consulting IT architect
with IBM.

MARCH/APRIL 2013

19


http://www.ibmsystemsmag.com/mainframe

IBM Systems Magazine, Mainframe Edition - March/April 2013

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 - Intro
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Cover1
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Cover2
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 1
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Table of Contents
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 3
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 4
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 5
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Editor's Desk: Virtual Argument Over Cloud
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 7
IBM Systems Magazine, Mainframe Edition - March/April 2013 - IBM Perspective: The Perfect IT Combination
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 9
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Data Display: IBM Mainframe: A Leader in Energy Efficiency
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 11
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Trends: Batch Modernization Redefines Application Development
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 13
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 14
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 15
IBM Systems Magazine, Mainframe Edition - March/April 2013 - IT Today: Running Highly Stacked Workloads on System z Can Greatly Reduce Cost Per Unit of Work
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 17
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 18
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 19
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Cover Story: Breaking Through Complexity: IBM Entry Cloud Configuration for SAP Solutions bring simplicity and efficiency
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 21
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 22
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 23
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 24
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 25
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Feature: Reach Cloud's Potential: Build your IT environment with IBM zEnterprise and SmartCloud
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 27
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 28
IBM Systems Magazine, Mainframe Edition - March/April 2013 - BB1
IBM Systems Magazine, Mainframe Edition - March/April 2013 - BB2
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 29
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 30
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 31
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Tech Corner: System z Virtualization Environment Provides Far Lower TCA Than Its Intel Alternative
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 33
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 34
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 35
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 36
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 37
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 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
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Advertisers Index
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Stop Run
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Cover3
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Cover4
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Reference Point - Global Events, Education, Resources for Mainframe
IBM Systems Magazine, Mainframe Edition - March/April 2013 - RF2
IBM Systems Magazine, Mainframe Edition - March/April 2013 - Special Report: Mobile Mainframe
IBM Systems Magazine, Mainframe Edition - March/April 2013 - MS2
IBM Systems Magazine, Mainframe Edition - March/April 2013 - MS3
IBM Systems Magazine, Mainframe Edition - March/April 2013 - MS4
IBM Systems Magazine, Mainframe Edition - March/April 2013 - MS5
IBM Systems Magazine, Mainframe Edition - March/April 2013 - MS6
IBM Systems Magazine, Mainframe Edition - March/April 2013 - MS7
IBM Systems Magazine, Mainframe Edition - March/April 2013 - MS8
IBM Systems Magazine, Mainframe Edition - March/April 2013 - 2013 Mainframe Buyer's Guide Index
IBM Systems Magazine, Mainframe Edition - March/April 2013 - BG2
IBM Systems Magazine, Mainframe Edition - March/April 2013 - BG3
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