In the past decade, IDC has seen IBM Z evolve first from a siloed platform to what they call a "connected" platform, and then to a "transformative" platform. This transition has been driven by IBM, by the IBM Z software vendors, like Rocket Software, and by businesses themselves. IDC research shows that businesses that choose to modernize IBM Z achieve higher satisfaction than re-platformers and many are using open source software (OSS) in their modernization initiatives. Employing OSS makes it possible to crack the platform open and enable it to connect to the rest of the datacenter and the outside world. Join IDC guest speaker, Al Gillen and Peter Fandel as they take a deeper look at the value proposition associated with using commercially supported OSS in mission-critical environments, like IBM Z. In this webinar we’ll discuss: How OSS can neutralize the disparity between seasoned IBM Z and emerging developers The modernization initiatives that involve OSS What to consider before bringing OSS to IBM Z How Rocket Software is delivering commercially supported OSS to IBM Z

1. Modernizing Development on IBM Z using Open Source
Al Gillen
Group VP, Software Development and Open Source
January 2021
© IDC

2. Agenda
OSS Use Today
2
© IDC
Essential Guidance
Realities of Supporting OSS
IBM Z and OSS
The Value of Commercially Supported OSS

3. Open Source Software is Widely Used Today
77% of Organizations use Open Source Today; 7% More Plan to Begin Using Soon
3
No OSS in use, no future
plans for use
22%
No OSS in use,
plan to use in
next 12-24
months
7%
Currently use,
plan to reduce in
12-24 months
4%
Currently use, no change
of usage in 12-24 months
13%
Currently use,
adding more in next
12-24 months.
54%
QS6. Does your company currently use or plan to use OSS to support enterprise workloads or in software that your organization writes?
QS6A. Why have you not yet used any OSS in your company's servers or cloud instances?
© IDC
n =200, n=56
Source: IDC US Open Source Software Use Survey, October 2019
Can't use b/c of
existing contracts…
Key apps not
supported on OSS
OSS did not meet our
needs
Security concerns
Well served by other
SW solutions
IP concerns
0 20 40
Current Use
Nonuser Justifications
Percent

4. OSS is Widely Used in Development; Community Involvement Grows
Sharing Internal Code as OSS, not so Much Today
4
© IDC
Q7. Do you use external OSS in your development work? Q8. Do you collaborate on industry-specific
open source products, or might you do so in the future? Q9: Do you share internal creations as OSS?
n =200, 200
Source: IDC US Open Source Software Use Survey, October 2019
Use External OSS in
Dev, 76%
Don't use
External OSS,
20%
Not sure,
4%
Q7: External OSS Use
Today
We share software
we create as OSS
today, 18%
Don't share any of our
technology as OSS today,
29%
Don't share our
SW as OSS today,
hope to in the
future, 53%
Q9: Share Our Code as
OSS
Collaborate OSS
industry solutions
today, 65%
Don't collaborate on
OSS, 10%
Don't collaborate on
OSS, hope to in
future, 25%
Q8: External
Collaboration

5.  Developing using OSS offers:
• Modernizes skills
• Vastly expands access to developers
• Skills readily transferable
 Applications built using OSS
• Become more portable
• Longer shelf life
• More supportable
 Collaboration with the larger community
• Ability to start up community projects with industry peers
• Collaborate on solutions across platforms
© IDC 5
Enabling Standardization with Open Source
Software

6. © IDC 6
Value Expected Focused More on Benefits and
Speed, Less on Cost
Q6. What are the benefits your organization gets or expects it will get from using open source software?
n =200
Source: IDC US Open Source Software Use Survey, October 2019
 Best technology
 Competitive advantage
 Speed/ease of development
 Cost benefits
30 40 50 60 70
Accelerated dev, test and prototyping
Reduced software/subscription costs
Exposure to emerging tech for our devs
and ops
Access to tech allowing better/faster
innovation
Develop using OSS services, code &
microservices
(% of Respondents)
Anticipated Benefits of OSS

7. 40 45 50 55 60
Data management
LoB Software
Infrastructure Software
DevOps Software
Ops Software
API mgmt, msg queuing, streaming
Dev Tools
Modern App Platform (Containers)
Deploy Plats (PaaS, FaaS, Serverless)
App Server Platforms
Private Cloud
(% of Respondents)
OSS Use in CY2019 OSS Expected Use in CY2021
© IDC 7
OSS Usage in 2019 and Projected for 2021
Q4/5: For each of these classes of software, today and in 24 months in the future, what percent of your total software is/will be open source software?
Base = Companies that use at least some OSS in their environments
n = 126, 137, 112, 124, 118, 108, 144, 118, 135, 134, 136
Source: IDC US Open Source Software Use Survey, October 2019
 OSS continues to dilute
proprietary software
 Virtually every market
segment has OSS
competitors today
 Developers are particularly
heavy users of OSS
 But devs tend to be do-it-
yourselfers with OSS
 Leads to a reduced focus on
devs by commercial OSS

8. Agenda
OSS Use Today
8
© IDC
Essential Guidance
Realities of Supporting OSS
IBM Z and OSS
The Value of Commercially Supported OSS

9. Acquisition
Costs
Staff Labor
Costs
Infrastructure
Costs
Downtime/
IT Staff
Downtime/
Users
All software comes with:
 IT staff training /expertise
 Deployment costs
 Lifecycle expectations
 Support obligations
 Maintenance – fixes, patches,
security issues
 Recovery from downtime
 Decommissioning costs
© IDC 9
The Realities of Supporting Software
Source: IDC, 2021

10. Agenda
OSS Use Today
10
© IDC
Essential Guidance
Realities of Supporting OSS
IBM Z and OSS
The Value of Commercially Supported OSS

11.  IBM is a major supporter of open source software
• Long time sponsor of OSS foundations
• OSS available on all IBM platforms
• IBM contributes and open sources technologies
• Rocket Software is one of a finite number
of Z-focused OSS vendors (and key IBM partner)
 Substantial investment in open source enablement
• Developer ecosystem
• Application ecosystem
• Portability of solutions
• Portability of skills
 Long term platform viability
• Relevance
• Extensibility
11
© IDC
IBM Z and Open Source Software

12.  Scripting language
 Well suited for Web workloads
 General purpose language
 Available for most platforms
 Large skilled workforce
12
© IDC
OSS Solutions for z/OS
 Source control system
 Performant, lightweight
 Java library
 Build tool for apps
 Secure sockets layer
 Transport layer security
 Package management system
 Dependency management

13. 3.5
4.6
4.0
6.5
1.7
2.6
1.9
3.4
2.3
3.5
1.7
2.0
0
2
4
6
8
10
12
PHP (2020) PHP (2024) Python (2020) Python (2024)
Use Among Professional Developers
Heavy Use Moderate Use Infrequent Use
13
© IDC
PHP and Python Usage Among WW Devs
7.4
10.8
7.6
11.8
Source: IDC PaaSView and the Developer, 2020 (IDC #US46799420, Aug 2020)
Millions
of
Developers,
Worldwide

14. Agenda
OSS Use Today
14
© IDC
Essential Guidance
Realities of Supporting OSS
IBM Z and OSS
The Value of Commercially Supported OSS

15.  Community support may or may not be available when needed
 Community may or may not be able to address problems
 Solutions often require update of products
 Customers take responsibility for verifying the security of code and
dependencies
 Frequent updates to code base
 Customers need to stay engaged with community to be aware of issues
15
© IDC
Challenges of Using Community OSS
n = 200
Source: IDC Open Source Software Use Survey, Oct 2019

16.  Support programs to meet customer’s needs (8x5, 24x5, 24x7, etc.)
 Vetting/hardening of community code
 Software composition analysis, license verification
 Confidence/assurance of quality of those updates
 Steady stream of vetted updates delivered without having to engage directly
with the community (i.e., maintenance)
 Alerts for security vulnerabilities
 Community engagement on your behalf
16
© IDC
Why Supported OSS has Value
n = 200
Source: IDC Open Source Software Use Survey, Oct 2019

17.  Infrastructure efficiency
 Downtime impacts
• Staff
• End users/Customers
 Acquisition costs
• Typically not a savings area
 Staff labor costs
17
© IDC
Cost Savings Contributors
Acquisition
Costs
Staff Labor
Costs
Infrastructure
Costs
Downtime/
IT Staff
Downtime/
Users
Source: IDC, 2021

18. Agenda
OSS Use Today
18
© IDC
Essential Guidance
Realities of Supporting OSS
IBM Z and OSS
The Value of Commercially Supported OSS

19. Advice for the IT Buyers
19
© IDC
1. The future of software is dominated by open source solutions
2. Most new software built today is open source
3. Technologies used across multiple platforms offer value in terms
of skills availability, app portability and long-term support
4. Commercially supported OSS generally offers a better value
proposition for end users – except in unusual circumstances
5. Buyers increasingly participating in OSS projects, and often,
launching their own OSS projects

20. For More Information
LinkedIn
https://www.linkedin.com/company/idc
Twitter
https://twitter.com/@IDC
www.idc.com
Al Gillen
agillen@idc.com
@algillen
732-784-7240
© IDC 20

21. Managed Open Source:
Rocket® Open AppDev for Z
Peter Fandel, Director of Product Management
1/28/2021

22. z/OS: security, availability and high
transaction processing
z/OS is used by
• The top 66 Banks in the World
• Over 100 countries and government
agencies
• 21 of the 25 largest insurance
companies
• 90% of the credit card companies
• 70% of the Global Fortune 500
companies
Consistency
Availability Performance
z/OS

23. Poll 1
Are you using open-source languages and
tools in production on your z/OS environment?

24. Benefits of modernizing in-place
Those who modernize in place are:
US healthcare company with $700 million in annual revenue
did a deep cost analysis and decided re-platforming wasn’t
an appropriate path, when they saw for every $1 spent to
modernize their IBM environment, they’d have to spend $2
to re-platform, with an uncertain success.
7/7
more satisfied vs
re-platformers in
all user aspects
2.5%
annual savings vs
re-platforming
annual revenue
growth
5%
criteria
“IBM Z is very important
(…). To kind of shock
and reload or to
reinvent the wheel
would have been
extremely costly and
time prohibitive for us.”
- IBM Z modernizer

25. Commercially-supported
open source
Accelerate modernization with innovation
Supports
hybrid-cloud
strategy
Cloud-native
technology
Extend DevOps
to z/OS
Modernization
outcomes
Benefits of using
open on z/OS
Integrates modern
app components
Enable next-gen
developers & tools
Accelerates dev, test
and prototyping
“35% of IBM Z businesses have
executive initiatives in place . . .
and it is growing”
- IDC

26. Poll 2
What are the obstacles preventing the increasing use
of z/OS open source within your organization?

27. Adopting open on z/OS
Considerations for…
User
experience
Security
Version
latency
Expert
support
Ongoing
maintenance Compliance
Security
vulnerabilities
78% 53% 63%

28. Rocket® Open
AppDev for Z

29. More than code…
29
Rocket®
Open AppDev
for Z
New technology for rapid
security updates
World-class support
Secure delivery
and deployment
It's about security, compliance and support
20+ open-source
languages and tools

30. Popular tools in the distributed world
curated for traditional systems
Developer
Operator
Security

31. Escalated secure access from trusted sources
31
Supported by Rocket
Do-it-yourself, complex
deployment, no support

32. © Rocket Software, Inc. or its affiliates 1990–2019.
Company Confidential. For Internal Use Only.
Conda workflow – example Git for z/OS
32
> conda install –channel local-file-channel git
> conda install –channel condaserver.rocketsoftware.com git
Download
solution bundle
air-gapped
system?
yes
no Channel
update script
Rocket secure
conda channel
Rocket Portal
Your on premise
conda channel
Initially (and periodically for updates)

33. World-class support and community engagement
We live and celebrate the mission-critical
platforms that drive your business.
• One class of support—Everyone is a priority
• Support professionals—9-years average tenure
• 96%+ customer satisfaction rating—Best in our segment
• Training and developing next generation talent with
Rocket.Build & RocketShips
• We won’t allow a customer or partner to fail. Ever.
At Rocket, we’re a different kind of software company—
supporting your success drives everything we do
The Rocket Forum
Create your forum account
www.rocketsoftware.com/forumregister
As a member, you can:
• Keep up with product news, information, updates, and help chart product
development
• Take advantage of peer learning, content and knowledge sharing, and
grow in your professional development and reputation as a subject matter
expert
• Build relationships with fellow customers, subject matter experts, and
Rocketeers
Our virtual headquarters for customers, prospects, partners
and Rocketeers, your destination to discuss "all things Rocket”

34. Adopting open on Z
In summary…
User
experience
Security
Version
latency
Ongoing
Maintenance Compliance
Security
Vulnerabilities
78% 53% 63%
conda
automated porting
Expert
support
24x7 support

35. The Rocket Forum
Create your forum account
www.rocketsoftware.com/forumregister
As a member, you can:
• Keep up with product news, information,
updates, and help chart product development
• Take advantage of peer learning, content and
knowledge sharing, and grow in your
professional development and reputation as a
subject matter expert
• Build relationships with fellow customers, subject
matter experts, and Rocketeers
Our virtual headquarters for customers, prospects, partners and
Rocketeers, your destination to discuss "all things Rocket”

36. Next steps
• Read the IDC report: new research
proves that modernizing legacy
platforms drives legendary results
• Read the IDC tech spotlight: Making
open source work for you: Achieving
Optimum Speed, Security, and Value
Download free IDC whitepaper
info.rocketsoftware.com/idc
Download free IDC whitepaper
info.rocketsoftware.com/idc

37. Thank you!