In this session, you will gain detailed insight into why and how German Pension Fund (Deutsche Rentenversicherung) migrated a monolithic mainframe application consisting of 3.5 million lines of code and 2,500 CICS COBOL programs and the required transaction environment to SUSE Linux Enterprise Server for System z. In addition to reducing software costs through the use of open source software, German Pension Fund can now rely on a consolidated system based on a modern, flexible and reliable operating system, which will also be used as the host system for content management and archiving systems. One of the main reasons for the move to Linux was that it can be used on multiple or different hardware platforms with minimal adaptations. And the biggest advantage of the IBM System z10 environment for German Pension Fund— besides its legendary reliability and intelligent resource usage—clearly is that all application components run on a single machine, which means that administration effort and access times between z/OS and Linux are minimal. Speakers: Florian Delonge Business Development Director EMEA Clerity Solutions, Inc. Falk-Oliver Bischoff Head of IT Department, Deutsche Rentenversicherung (German Pension Fund)

1. German Pension Fund
Goes Linux
Legacy Application Migration to z/Linux with Minimal Risk

2. Presenters
Falk-Oliver Bischoff Hartmut Hackert
Head of Information Technology Head of Information Technology
DRV Baden-Württemberg DRV KBS
(falk-oliver.bischoff@drv-bw.de) (hartmut.hackert@kbs.de)
Florian Delonge Olaf Senger
Manager EMEA
Project Manager
Clerity Solutions Inc.
IBM
(Florian.Delonge@clerity.com)
(osenger@de.ibm.com)
2 © Novell, Inc. All rights reserved.

3. Content
GRVSoL - success story of migration
– German Pension Fund
– Some background about our legacy application GRVS
– Architecture of GRVS on Linux
– Project history
Clerity's transaction monitor UniKix TPE
– How to execute transactions under z/Linux
– UniKix is more than online business
Management of application migration
Lessons learned
3 © Novell, Inc. All rights reserved.

4. GRVSoL – Success Story of Migration

5. Presenter Information
Name: Falk-Oliver Bischoff
Project role: Executive Manager for project
GRVSoL in DRV BW
Profession: Computer Scientist
Work Experience: DRV since 1995
Name: Hartmut Hackert
Project role: Executive Manager for project
GRVSoL in DRV KBS
Profession: Mathematician
Work Experience: DRV since 1980
5 © Novell, Inc. All rights reserved.

6. German Pension Fund
It's not a capital based system
The idea to found Pension It should be understood
Fund was started 1891, as a inter-generational
and is based on Law contract
designed and released in Secured by law and oriented on
1911 (time of Bismarck) gross national product
Formerly separate systems for
blue collar worker and white
collar employees
Since 2005 “Deutsche Rentenversicherung”
Focal point optimizing the organization
10 % reduction of the administration expenses
Better appearance for customers
6 © Novell, Inc. All rights reserved.

7. Administrative Structure of DRV
16 DRV Divisions 6 Electronic Data
Bund Processing Centers
Baden-Württemberg
Bayern-Süd RZ KBS, Bochum
Berlin-Brandenburg RZ Würzburg GmbH
Hessen RZ Bund, Berlin
KBS RZ Leipzig e.V.
Nordbayern RZ Nord GmbH
Oldenburg-Bremen RZ West GmbH
Rheinland-Pfalz
Saarland
Schwaben
Rheinland 4 Data Print Centers
Westfalen
Nord
Mitteldeutschland
Braunschweig Hannover
7 © Novell, Inc. All rights reserved.

8. Technical Structure of DRV
GRVS rvGlobal
z/OS BS2000
CICS, DB2 UTM, Oracle
Cobol Cobol
8 © Novell, Inc. All rights reserved.

9. Stakeholders of DRV Linux Project
DRV KBS
Headquarter: Bochum
Online users: 2500
users
EDPC: Bochum
DRV Hessen
Headquarter: Frankfurt
Online users: 1300
DRV Saarland EDPC: Würzburg
Headquarter: Saarbrücken
Online users: 300
EDPC: Würzburg
DRV Baden-Württemberg
Headquarter: Karlsruhe
Online users: 2000
EDPC: Würzburg
9 © Novell, Inc. All rights reserved.

10. Overview of GRVS Application
Two tier model, but three layers
Personal
Computer
Presentation
Layer
Mainframe
Business Logic Layer
Data Layer
10 © Novell, Inc. All rights reserved.

11. Architectural Concept of GRVS
PC-System
GUI (Dialog Manager) SLES
NDS
TP Client NAL
Transaction Monitor
Host Systems (IBM or Fujitsu)
KLDS Abstraction Layer
Storage Management
Functional Job Functional
Scheduling Account
Data
Batch Application
Program Programs
Subject to Databases
Scheduler and VSAM Files
Public Law
11 © Novell, Inc. All rights reserved. Oracle and db/2 connectors Desktops supported by ZENWorks or TIVOLI ®

12. Technical Drill Down
ISA Dialog Manager, C/C++, Cobol
Front-end Online Control and GUI Virtual Terminal Batch
TP 01 TP 15 TP 09C Driver VF 06
TP 02 TP 03 TP 04
Help Desk TP 05 TP 06
TP 17
IVAN
DAM Sequential Files
Hyperlink
DBZ KLDS
Application Programs VSAM / ISAM
Output Screen TPSRS TP 11 SUSY
Data Base
IHV
Print Interface
TP 16 TP 07 DB2 Oracle
Printing
TP 08 TP 09B
12 © Novell, Inc. All rights reserved.

13. Project Definition and Goals
• Project Name: GRVSoL
• Project Participants
– DRV Baden-Württemberg, DRV Hessen,
DRV Knappschaft Bahn See, DRV Saarland
• Project Scope
– Legacy application of the DRV,
– Integrated program system for handling DRV tasks,
• Project Results
– Reduction of software costs (mandated by federal law)
– Using open source software (requested by federal government)
– Reduction of heterogeneity of software environment and
operating systems
13 © Novell, Inc. All rights reserved.

14. Project Definition and Goals
• Definition of Modules
– Migration of a monolithic mainframe application
> Consisting of 3.5 million lines of code
> 2500 CICS COBOL programs
> Transaction environment to the Linux operating system
• Hardware Environment
> IBM z/10 as source and target system
• Software Environment
> z/OS, CICS and IBM Language Environment in legacy system,
> Linux, UniKix TPE (CICS replacement), Micro Focus COBOL in target
• Data storage
> DB2 systems, retained on z/OS, about 15 VSAM Clusters
14 © Novell, Inc. All rights reserved.

15. GRVS from Migration Point of View
Client (Windows)
Server (z/OS) DB Batch (z/OS)
TCP/IP-ECI Pension
Online Batch
Application Programs
SNA
VSAM Print DB Print File
Sequential
Files
Remote Information 2.500 Cobol
250 and Communication Programs
Cobol Programs System of DRV 25 VSAM files
15 © Novell, Inc. All rights reserved.

16. Architecture of GRVS on Linux
Server System z
SLES 10 31 bit
SLES 10 31 bit z/OS R. 1.8
SNA/A IBM Communication Server Batch
PPC
MF Server for Cobol
DSRV DB 2
R.8
IBM DB 2 Connect
Client (Windows)
ECI VSAM Region 1 Region Region
Call Programs 2 n
Unikix TPE
16 © Novell, Inc. All rights reserved.

17. Project History
03-2010
Final Test and Rollout
round about 50 project team members
03-2009
Implementation and Test
round about 80 project team members
03-2008
Switch from Acucobol to Micro Focus Cobol
11-2007
Proof of Concept
round about 20 project team members
05-2006 Project Kick-off
17 © Novell, Inc. All rights reserved.

18. Clerity's Transaction Monitor Unikix TPE

19. Presenter Information
Name: Florian Delonge
Project role: UniKix Solution Manager
Profession: Manager EMEA
Project
Coordinator
Work Experience: Clerity Solutions, Inc.
since
2007
19 © Novell, Inc. All rights reserved.

20. Clerity Introduction
Full service migration and modernization leader
• Consultative, comprehensive end-to-end approach
– Software, tools and infrastructure expertise
• History of on-time, in budget implementations
• >16 years mainframe and open systems experience
• Track record of reducing customer costs 30-70%
• Focus on protecting existing investments where
possible and beneficial
20 © Novell, Inc. All rights reserved.

21. Our Motto ...
“Don't throw the
baby out with
the bath water”
21 © Novell, Inc. All rights reserved.

22. Clerity's UniKix Technology Suite
TN3270 TN3270
ECI/EPI App Server ECI/EPI App Server
J2EE J2EE
Sockets Web Server Sockets Web Server
WebSphere WebSphere
HTTPS HTTPS
TN3270 TN3270
3rd Party Utilities Tools and Utilities 3rd Party Utilities
VSAM VSAM or Relational
Data Migration
DB2, IMS DB, Adabas Oracle, UDB, Adabas
COBOL, PL/1, Natural Application Logic COBOL, PL/1, Natural
CICS Online Environment
IMS TM JCL/JES UniKix TPE UniKix BPE
IDMS DC Batch Environment
z/OS, z/VSE Mainframe Platform Linux, UNIX, Windows
22 © Novell, Inc. All rights reserved.

23. UniKix TPE Software Details
UniKix TPE Region
J2EE
Application Java Connector
Transaction Intersystem
COBOL Communication
Mgmt zOS, zVSE
Application TN3270
Server Resource
TN3270 PL/1
COMMAREA
Mgmt
Visual High
Basic Availability
ECI/EPI Security C/C++ Cluster
TN3270
TN3270 Session VSAM
Mgmt Access Mgr.
Messaging WebSphere
SNA PU4/5 Java MQ
Admin
Apps
Socket/SSL
DB2
Oracle VSAM
Sybase
23 © Novell, Inc. All rights reserved.

24. Rehosting Benefits
• Reduce operational cost 30-70%
– Grow revenue
– Accommodate future growth at competitive economy of scale
• Improve business processes;
enhance customer experience
• Deliver new applications and services
• Accelerate time-to-market
– Simplify IT environment
– Facilitate rapid integration and response
• Rationalize application and data portfolio
24 © Novell, Inc. All rights reserved.

25. Management of Application Migration

26. Presenter Information
Name: Olaf Senger
Project role: Project Manager
Profession: Application developer
for system z, IT specialist for
migration from/to Unix/Linux,
project manager
Work Experience: IBM since 2001
26 © Novell, Inc. All rights reserved.

27. Let's Talk About Migration
Re-engineering
(change of business logic)
+
Application Environment
Appl.
RDBMS Appl. Appl. C
CRMS IDE
User A B
Migration
Operating System
Operating System
Hardware
27 © Novell, Inc. All rights reserved.

28. Migration Method with Minimal Risk
Phase 1 Phase 2 Phase 3 Phase 4
Training
Analysis Technical PoC Data System
Project Env. Migration Test
Selection Verification Delivery
Project Code Integration of
Definition of Software of PoC
Tools Results Adaptation Test Migrated
System
Definition Migration Module Perform.
Planning Coaching
of PoC Strategy Test Test
Project Management and Quality Assurance
Pilot Study PoC Implementation Roll-out
28 © Novell, Inc. All rights reserved.

29. Technical Challenges of Migration
Data Migration ASCII-EBCDIC
and Binaries Translation
Frequency of occurrence
Differences
between OS
CPU and Cobol Compiler
Byte Order Options (COMP-3)
Migration and Performance
Test Tools (CPU Time, Storage)
Technical Impact
29 © Novell, Inc. All rights reserved.

30. Why User-oriented Migration?
Acceptance of new system by user is a critical success factor!
Evaluation of software components by ISO 9126:
Functionality Reliability Maintainability
Portability Efficiency Usability
Software tools for:
Application Development
Process Planning
System Administration
30 © Novell, Inc. All rights reserved.

31. Lessons Learned
Falk-Oliver Bischoff (DRV Baden-Württemberg)
Hartmut Hackert (DRV KBS)

32. Lessons Learned (1)
Recognition: Who moved my cheese?
Reaction: Conserve and find arguments!
Dealing with it: The importance of show stoppers
New Claims: New people, new quality
32 © Novell, Inc. All rights reserved.

33. Lessons Learned (2)
Merge z/OS and LINUX skills
New Software Development Teams: There are differences
● Invest money and spend time for learning
● They should know basics of the LINUX OS
● Different handling of language environment (compile, debug)
New Production Teams: Easy adopting the system
● Keeping the existing job scheduler
● Using the well known backup system
● Keeping many products and administration tools
New System Teams: Deeper knowledge required
● Invest money and spend time for learning
● Keep open minded for new technologies
● More complex monitoring and performance measurement
33 © Novell, Inc. All rights reserved.

34. Pay Attention to Interdependent Goals
Strategy
Performance
Costs
Compliance
Structure Culture
Operating Behavior
Responsibility Communication
Knowledge Learning
Colleagues Flexibility
34 © Novell, Inc. All rights reserved.

35. Basics of Success
Capable project team and excellent partners
35 © Novell, Inc. All rights reserved.

36. Messages of Success
Penguins Flooding the Classical Data Center
● Change management succeeded
● New dimension of a re-hosting project
Reduce Project Goals to the Maximum
● Cost Reduction achieved
● No functional changes for end users
● Performance requirements fulfilled
Direction of Migration is Integration
● z/Environment grants security and reliability
● Combining z/OS (Database) and z/LINUX (Online) secures processes
A new chance, GRVSoL is the first step
● Further Systems will be moved to z/LINUX (spool, ERP, Achive)
● Consolidating existing systems running on Intel Servers
36 © Novell, Inc. All rights reserved.

37. Do You Have Any Questions?

39. Unpublished Work of Novell, Inc. All Rights Reserved.
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