z/Series Modernization and Migration

Under the best of circumstances, mainframe systems are complex, expensive, and difficult to scale. In today’s world, applications written for mainframe legacy systems also present significant operational challenges to customers compounded by the dwindling pool of engineers who specialize in these outdated technologies. Many organizations want to migrate their legacy applications to the cloud but to do so they need to go through a lengthy migration process that is made more challenging by the complexity of mainframe applications.

Our Advice

Critical Insight

The most common tactic is for the organization to better realize their z/Series options and adopt a strategy built on complexity and workload understanding. To make the evident, obvious, the options here for the non-commodity are not as broad as with commodity server platforms and the mainframe is arguably the most widely used and complex non-commodity platform on the market.

Impact and Result

This research will help you:

Evaluate the future viability of this platform.
Assess the fit and purpose, and determine TCO
Develop strategies for overcoming potential challenges.
Determine the future of this platform for your organization.

z/Series Modernization and Migration Research & Tools

1. z/Series Modernization and Migration Guide – A brief deck that outlines key migration options and considerations for the z/Series platform.

This blueprint will help you assess the fit, purpose, and price; develop strategies for overcoming potential challenges; and determine the future of z/Series for your organization.

2. Scale Up vs. Scale Out TCO Tool – A tool that provides organizations with a framework for TCO.

Use this tool to play with the pre-populated values or insert your own amounts to compare possible database decisions, and determine the TCO of each. Note that common assumptions can often be false; for example, open-source Cassandra running on many inexpensive commodity servers can actually have a higher TCO over six years than a Cassandra environment running on a larger single expensive piece of hardware. Therefore, calculating TCO is an essential part of the database decision process.

z/Series Modernization and Migration

The biggest migration is yet to come.

Executive Summary

Info-Tech Insight

“A number of market conditions have coalesced in a way that is increasingly driving existing mainframe customers to consider running their application workloads on alternative platforms. In 2020, the World Economic Forum noted that 42% of core skills required to perform existing jobs are expected to change by 2022, and that more than 1 billion workers need to be reskilled by 2030.” – Dale Vecchio

Your Challenge	It seems like anytime there’s a new CIO who is not from the mainframe world there is immediate pressure to get off this platform. However, just as there is a high financial commitment required to stay on System Z, moving off is risky and potentially more costly. You need to truly understand the scale and complexity ahead of the organization.
Common Obstacles	Under the best of circumstances, mainframe systems are complex, expensive, and difficult to scale. In today’s world, applications written for mainframe legacy systems also present significant operational challenges to customers compounded by the dwindling pool of engineers who specialize in these outdated technologies. Many organizations want to migrate their legacy applications to the cloud, but to do so they need to go through a lengthy migration process that is made more challenging by the complexity of mainframe applications.
Info-Tech Approach	The most common tactic is for the organization to better realize its z/Series options and adopt a strategy built on complexity and workload understanding. To make the evident, obvious: the options here for the non-commodity are not as broad as with commodity server platforms and the mainframe is arguably the most widely used and complex non-commodity platform on the market.

Review

We help IT leaders make the most of their z/Series environment

Problem statement:

The z/Series remains a vital platform for many businesses and continues to deliver exceptional reliability and performance and play a key role in the enterprise. With the limited and aging resources at hand, CIOs and the like must continually review and understand their migration path with the same regard as any other distributed system roadmap.

This research is designed for:

IT strategic direction decision makers.

IT managers responsible for an existing z/Series platform.

Organizations evaluating platforms for mission critical applications.

This research will help you:

Evaluate the future viability of this platform.
Assess the fit and purpose, and determine TCO.
Develop strategies for overcoming potential challenges.
Determine the future of this platform for your organization.

Analyst Perspective

Good Luck.

Modernize the mainframe … here we go again.

Prior to 2020, most organizations were muddling around in “year eleven of the four-year plan” to exit the mainframe platform where a medium-term commitment to the platform existed. Since 2020, it appears the appetite for the mainframe platform changed. Again. Discussions mostly seem to be about what the options are beyond hardware outsourcing or re-platforming to “cloud” migration of workloads – mostly planning and strategy topics. A word of caution: it would appear unwise to stand in front of the exit door for fear of being trampled.

Hardware expirations between now and 2025 are motivating hosting deployments. Others are in migration activities, and some have already decommissioned and migrated but now are trying to rehab the operations team now lacking direction and/or structure.

There is little doubt that modernization and “digital transformation” trends will drive more exit traffic, so IT leaders who are still under pressure to get off the platform need to assess their options and decide. Being in a state of perpetually planning to get off the mainframe handcuffs your ability to invest in the mainframe, address deficiencies, and improve cost-effectiveness.

Darin Stahl
Principal Research Advisor, Infrastructure & Operations Research
Info-Tech Research Group

The mainframe “fidget spinner”

Thinking of modernizing your mainframe can cause you angst so grab a fidget spinner and relax because we have you covered!

External Business Pressures:

Digital transformation
Modernization programs
Compliance and regulations
TCO

Internal Considerations:

Reinvest
Migrate to a new platform
Evaluate public and vendor cloud alternatives
Hosting versus infrastructure outsourcing

Info-Tech Insight

With multiple control points to be addressed, care must be taken to simplify your options while addressing all concerns to ease operational load.

About Info-Tech

Info-Tech Research Group is the world’s fastest-growing information technology research and advisory company, proudly serving over 30,000 IT professionals.

We produce unbiased and highly relevant research to help CIOs and IT leaders make strategic, timely, and well-informed decisions. We partner closely with IT teams to provide everything they need, from actionable tools to analyst guidance, ensuring they deliver measurable results for their organizations.

What Is a Blueprint?

A blueprint is designed to be a roadmap, containing a methodology and the tools and templates you need to solve your IT problems.

Each blueprint can be accompanied by a Guided Implementation that provides you access to our world-class analysts to help you get through the project.

Table of Contents

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