http://www.ibm.com/developerworks/downloads/im/data/ - написано, что 4.1

Похоже, что свежак. Там, где Expesss-C, предлагают 3.11, хотя был уже 3.2.

http://www.ibm.com/developerworks/downloads/im/data/support.html


Get started

Information Roadmap - http://www.ibm.com/developerworks/data/roadmaps/roadmap_datastudio.html
Learn about the Data Studio components and how to deploy them in a team environment - http://pic.dhe.ibm.com/infocenter/dstudio/v4r1/topic/com.ibm.datatools.ds.release.doc/topics/getstarted.html
eBook: Getting started with IBM Data Studio for DB2 - http://www.ibm.com/developerworks/mydeveloperworks/wikis/home/wiki/Big Data University/page/FREE ebook - Getting Started with IBM Data Studio for DB2?lang=en
Configuring DB2 for z/OS Subsystems for the No-Charge Tuning Features
System requirements
Data Studio overview - http://pic.dhe.ibm.com/infocenter/dstudio/v4r1/topic/com.ibm.datatools.ds.release.doc/topics/dsoverview.html

надо полагать.

https://www.ibm.com/developerworks/community/forums/html/topic?id=befc1704-5083-4a62-a12c-02397edddeda&ps=25

LeoPetraz:
There is a known issue with installing DB2 10.5 on Windows XP 32-bit. You will receive a "setup.exe is not a valid win32 application" error. It is caused by a change in Visual Studio 2012 which is used to build DB2 10.5. Microsoft dropped support for older 32-bit operating systems in Visual Studio 2012.
Windows XP is not a supported platform at this time:
http://pic.dhe.ibm.com/infocenter/db2luw/v10r5/index.jsp?topic=/com.ibm.db2.luw.qb.server.doc/doc/r0006867.html

И хотя позднее

dattark:
If I am not mistaken, Microsoft resolved the issue with support for targeting XP in VS 2012 Update 1 (late 2012) .
See vsupdate_KB2707250.exe

но, по-видимому, поезд уже ушёл (очень обидно, да).

RHEL 5 тоже уже не поддерживается, надо 6.