IBM Systems magazine, IBM Z July/Aug 2020 - 36

TECHBITS
Why Applications Should Drive Your Infrastructure
Requirements
nterprises of all sizes may
be tempted to reduce IT
spend by choosing a single
standard server to be deployed
throughout their entire infrastructure. Not only can it be expensive
and time consuming to migrate
applications to a single standard
server, it can inadvertently introduce issues caused by different
applications requiring unique architecture attributes. Even within
the same enterprise, application
requirements can vary, resulting
in the need for careful analysis of
infrastructure attributes.
IT infrastructure will have a
"$!!' Èî Ä ÇÄÃ"ÄÇ&QÃ&'%Ã
analysis of an application's total cost of ownership (TCO) is
essential for an informed decision. While most IBM Z® experts
understand why the platform is
ideal after considering application
requirements, emphasizing the
® Ä ÇÄÃÆÉ É®&%Ã!Ã)"-Ã:ÃÇÄ ÃÆÉÃ
helpful for management stakeholders. Typically, commodity
servers are perceived as a low-cost
and effective infrastructure yet
TCO analysis tends to illustrate the
opposite. When all application requirements and data center costs
are summed, commodity scale-out
servers can actually drive up the
total cost of IT spend and fail to
deliver a ROI.

E

Evolving Application
Development
Methodologies
IT applications represent the real
assets of modern organizations, as
business processes are implemented within them. This is why many
organizations are still running

applications that were originally deployed more than half a century ago.
But application development
methodologies have largely
changed over the years, and organizations have often adopted the
new trends while maintaining the
already-deployed applications.
This has created different layers
of technologies, and application
integration has become a crucial
challenge for every organization.
The development of an application, as well as every phase of the
application maintenance, requires
% ®ÇÄ &Ã$É%!'$ÇÉ%NÃ&!$ÃÉ0Ä"ÉQÃ
after a few years, the total cost of an
application becomes much larger
than the cost of the infrastructure
it runs on. When an application
represents a business area of a
company, the application is kept in
place as is while being integrated
with other application modules
adopting the latest technologies
and approaches.

Lower TCO
and Higher ROI
When application requirements
are considered, the IBM Z platform
emerges as a superior infrastructure option for many applications.
We often hear rumors of the
demise of the mainframe and that
IBM Z is obsolete based on new
application lifecycle management
approaches, methodologies and
techniques promising a lower TCO
for applications running on other
systems. However, many compaÉ%î ÈÃ&Ä&ÃÇ! & ' Ã&!Ã$' Ã
their applications on IBM Z provides a lower TCO and higher ROI.
)"-Ã)4Ã%Ç! !Ç%Ã4#/Ã!¯!ÄÈÃ
assessments requested by clients

Alfredo Micarelli is the IBM IT Economics team leader.

involving rewrite of up to 10 million
lines of application code had on average a 3.2x lower annual TCO keeping
their applications on IBM Z versus
moving to an x86-based infrastruc1
ture. This was mainly due to the fact
that the application migration costs,
the parallel environment maintenance period costs and the sizing
of the equivalent x86 infrastructure
once fully deployed were overlooked
and/or underestimated.
Because of the complexity of
!¯!ÄÈ Ã)"-Ã:ÃÄ""ÇÄ&! %QÃ
most of the projects ran beyond
their planned completion date and
budget, and fell short of the project's planned scope. Even in cases
considered technically successful,
analysis found that the project
either faced a long ROI breakeven
point of 20 or more years, or none
whatsoever. The risk of project
duration and cost tend to be why
many companies avoid application
migration and ultimately keep
their applications running on
)"-Ã:NÃ!&É$ Ä&(É1QÃ&É1î ÈÃÇ!%&Ã
savings through optimization of
their IBM Z environment or by exploring new service provisioning
models like shared data centers or
IBM Z cloud offerings.
Another factor that has contributed to the direction to remain on
IBM Z has been an increased acceleration in the availability of new
offerings and products that modernize IBM Z environments. This,
combined with investments made
in IBM Z applications running in
thousands of enterprises worldwide,
has convinced many IBM Z clients
to further enhance and expand their
mainframe environments. Instead
of replatforming their applications
to another hardware architecture,
clients are deploying new applications and modules on IBM Z that

36 | JULY/AUGUST 2020 IBMSYSTEMSMAG.COM

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IBM Systems magazine, IBM Z July/Aug 2020

Table of Contents for the Digital Edition of IBM Systems magazine, IBM Z July/Aug 2020

Table of Contents
From the editor
Currents: IBMer Megan Hampton helps teach African refugees how to code
Currents: Introducing 2020 first-time IBM Z Champions
Currents: Solutions
Partner POV: How to build a modern mainframe computing workforce
Cover Story: Enhancing Cloud Computing: IBM and Red Hat combination provides advances to help IBM Z clients embrace open computing environments
Feature: Cloud Native Development Packaged in a Self-Service Platform: IBM Wazi for Red Hat CodeReady Workspaces helps close the skills gap, improve productivity and speed time to market
TECH Showcase: Learn about the winners of the 2019 Master the Mainframe competition
Hot Topics: IBM's ServerPac installation using IBM z/OSMF streamlines software management
Tech Bits: Why applications should drive your infrastructure requirements
Tech Bits: Ask the expert: The IBM z/OS Container Extension trial feature
Beyond the Box: Megan Hampton advocates STEM education
IBM Systems magazine, IBM Z July/Aug 2020 - Intro
IBM Systems magazine, IBM Z July/Aug 2020 - Cover1
IBM Systems magazine, IBM Z July/Aug 2020 - Cover2
IBM Systems magazine, IBM Z July/Aug 2020 - 1
IBM Systems magazine, IBM Z July/Aug 2020 - 2
IBM Systems magazine, IBM Z July/Aug 2020 - 3
IBM Systems magazine, IBM Z July/Aug 2020 - Table of Contents
IBM Systems magazine, IBM Z July/Aug 2020 - 5
IBM Systems magazine, IBM Z July/Aug 2020 - From the editor
IBM Systems magazine, IBM Z July/Aug 2020 - 7
IBM Systems magazine, IBM Z July/Aug 2020 - Currents: IBMer Megan Hampton helps teach African refugees how to code
IBM Systems magazine, IBM Z July/Aug 2020 - 9
IBM Systems magazine, IBM Z July/Aug 2020 - Currents: Introducing 2020 first-time IBM Z Champions
IBM Systems magazine, IBM Z July/Aug 2020 - 11
IBM Systems magazine, IBM Z July/Aug 2020 - 12
IBM Systems magazine, IBM Z July/Aug 2020 - 13
IBM Systems magazine, IBM Z July/Aug 2020 - Currents: Solutions
IBM Systems magazine, IBM Z July/Aug 2020 - 15
IBM Systems magazine, IBM Z July/Aug 2020 - 16
IBM Systems magazine, IBM Z July/Aug 2020 - 17
IBM Systems magazine, IBM Z July/Aug 2020 - Partner POV: How to build a modern mainframe computing workforce
IBM Systems magazine, IBM Z July/Aug 2020 - 19
IBM Systems magazine, IBM Z July/Aug 2020 - Cover Story: Enhancing Cloud Computing: IBM and Red Hat combination provides advances to help IBM Z clients embrace open computing environments
IBM Systems magazine, IBM Z July/Aug 2020 - 21
IBM Systems magazine, IBM Z July/Aug 2020 - 22
IBM Systems magazine, IBM Z July/Aug 2020 - 23
IBM Systems magazine, IBM Z July/Aug 2020 - 24
IBM Systems magazine, IBM Z July/Aug 2020 - 25
IBM Systems magazine, IBM Z July/Aug 2020 - Feature: Cloud Native Development Packaged in a Self-Service Platform: IBM Wazi for Red Hat CodeReady Workspaces helps close the skills gap, improve productivity and speed time to market
IBM Systems magazine, IBM Z July/Aug 2020 - 27
IBM Systems magazine, IBM Z July/Aug 2020 - 28
IBM Systems magazine, IBM Z July/Aug 2020 - 29
IBM Systems magazine, IBM Z July/Aug 2020 - 30
IBM Systems magazine, IBM Z July/Aug 2020 - TECH Showcase: Learn about the winners of the 2019 Master the Mainframe competition
IBM Systems magazine, IBM Z July/Aug 2020 - 32
IBM Systems magazine, IBM Z July/Aug 2020 - 33
IBM Systems magazine, IBM Z July/Aug 2020 - Hot Topics: IBM's ServerPac installation using IBM z/OSMF streamlines software management
IBM Systems magazine, IBM Z July/Aug 2020 - 35
IBM Systems magazine, IBM Z July/Aug 2020 - Tech Bits: Why applications should drive your infrastructure requirements
IBM Systems magazine, IBM Z July/Aug 2020 - 37
IBM Systems magazine, IBM Z July/Aug 2020 - 38
IBM Systems magazine, IBM Z July/Aug 2020 - Tech Bits: Ask the expert: The IBM z/OS Container Extension trial feature
IBM Systems magazine, IBM Z July/Aug 2020 - Beyond the Box: Megan Hampton advocates STEM education
IBM Systems magazine, IBM Z July/Aug 2020 - Cover3
IBM Systems magazine, IBM Z July/Aug 2020 - Cover4
IBM Systems magazine, IBM Z July/Aug 2020 - CoverSD1
IBM Systems magazine, IBM Z July/Aug 2020 - CoverSD2
IBM Systems magazine, IBM Z July/Aug 2020 - SD1
IBM Systems magazine, IBM Z July/Aug 2020 - SD2
IBM Systems magazine, IBM Z July/Aug 2020 - SD3
IBM Systems magazine, IBM Z July/Aug 2020 - SD4
IBM Systems magazine, IBM Z July/Aug 2020 - SD5
IBM Systems magazine, IBM Z July/Aug 2020 - SD6
IBM Systems magazine, IBM Z July/Aug 2020 - SD7
IBM Systems magazine, IBM Z July/Aug 2020 - SD8
IBM Systems magazine, IBM Z July/Aug 2020 - SD9
IBM Systems magazine, IBM Z July/Aug 2020 - SD10
IBM Systems magazine, IBM Z July/Aug 2020 - SD11
IBM Systems magazine, IBM Z July/Aug 2020 - SD12
IBM Systems magazine, IBM Z July/Aug 2020 - SD13
IBM Systems magazine, IBM Z July/Aug 2020 - SD14
IBM Systems magazine, IBM Z July/Aug 2020 - SD15
IBM Systems magazine, IBM Z July/Aug 2020 - SD16
IBM Systems magazine, IBM Z July/Aug 2020 - SD17
IBM Systems magazine, IBM Z July/Aug 2020 - SD18
IBM Systems magazine, IBM Z July/Aug 2020 - SD19
IBM Systems magazine, IBM Z July/Aug 2020 - SD20
IBM Systems magazine, IBM Z July/Aug 2020 - SD21
IBM Systems magazine, IBM Z July/Aug 2020 - SD22
IBM Systems magazine, IBM Z July/Aug 2020 - SD23
IBM Systems magazine, IBM Z July/Aug 2020 - SD24
IBM Systems magazine, IBM Z July/Aug 2020 - SD25
IBM Systems magazine, IBM Z July/Aug 2020 - SD26
IBM Systems magazine, IBM Z July/Aug 2020 - SD27
IBM Systems magazine, IBM Z July/Aug 2020 - SD28
IBM Systems magazine, IBM Z July/Aug 2020 - SD29
IBM Systems magazine, IBM Z July/Aug 2020 - SD30
IBM Systems magazine, IBM Z July/Aug 2020 - SD31
IBM Systems magazine, IBM Z July/Aug 2020 - SD32
IBM Systems magazine, IBM Z July/Aug 2020 - SD33
IBM Systems magazine, IBM Z July/Aug 2020 - SD34
IBM Systems magazine, IBM Z July/Aug 2020 - SD35
IBM Systems magazine, IBM Z July/Aug 2020 - SD36
IBM Systems magazine, IBM Z July/Aug 2020 - SD39
IBM Systems magazine, IBM Z July/Aug 2020 - SD40
IBM Systems magazine, IBM Z July/Aug 2020 - SD41
IBM Systems magazine, IBM Z July/Aug 2020 - SD42
IBM Systems magazine, IBM Z July/Aug 2020 - SD43
IBM Systems magazine, IBM Z July/Aug 2020 - SD44
IBM Systems magazine, IBM Z July/Aug 2020 - SD45
IBM Systems magazine, IBM Z July/Aug 2020 - SD46
IBM Systems magazine, IBM Z July/Aug 2020 - SD47
IBM Systems magazine, IBM Z July/Aug 2020 - SD48
IBM Systems magazine, IBM Z July/Aug 2020 - SD49
IBM Systems magazine, IBM Z July/Aug 2020 - SD50
IBM Systems magazine, IBM Z July/Aug 2020 - SD51
IBM Systems magazine, IBM Z July/Aug 2020 - SD52
IBM Systems magazine, IBM Z July/Aug 2020 - SD53
IBM Systems magazine, IBM Z July/Aug 2020 - SD54
IBM Systems magazine, IBM Z July/Aug 2020 - SD55
IBM Systems magazine, IBM Z July/Aug 2020 - SD56
IBM Systems magazine, IBM Z July/Aug 2020 - CoverSD3
IBM Systems magazine, IBM Z July/Aug 2020 - CoverSD4
IBM Systems magazine, IBM Z July/Aug 2020 - CT1
IBM Systems magazine, IBM Z July/Aug 2020 - CT2
IBM Systems magazine, IBM Z July/Aug 2020 - SD
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