Paul Zikopoulos just reminded me of a series of articles that he's written that I'm sure you'll find useful. The articles will help you figure out which edition of DB2 you need. Check it out:
Do you know how to license a DB2 Connect Unlimited Edition for iSeries server? Did you know there was such a product? How about which edition of DB2 supports an authorized user? Do you know you can buy DB2 ESE on a per user basis (it's the answer to the last question). Do you know how you license high availability? Did you know how to license DB2 installed on a dynamic processor pool with a capped or uncapped partition? Are you aware that DB2 Everyplace is free with any DB2 Connect or DB2 server? Do you know how an idle DB2 machine isn't really idle, but it's considered the same as IBM SWG's Cold and Warm machines, but licensed differently?
You may be able to answer all of those questions, but I guarantee you that your clients can't. All of my packaging, licensing, and edition information articles have been updated for September 2005 (circa the DB2 UDB V8.2.3 code level).
You can quickly access these articles at the following URLs.
Which Distributed DB2 Edition is Right for You?
This popular article is updated with the latest news in product features, editions, and licensing for IBM DB2 Universal Database Version 8.2.3. The author lays out the options and includes a quick reference that maps typical user environments to the suggested DB2 edition. This article is available at: http://www.ibm.com/developerworks/db2/library/techarticle/0211zikopoulos/0211zikopoulos.html.
Comparing the Distributed DB2 Server Editions
In a side-by-side comparison table, author Paul Zikopoulos makes it simple to understand the basic licensing rules, functions, and feature differences between the members of the distributed IBMDB2Universal Database(DB2 UDB) server family. This article is available at: http://www.ibm.com/developerworks/db2/library/techarticle/0301zikopoulos/0301zikopoulos1.html.
Which Edition of DB2 Connect is Right for You?
DB2 Connect is IBM middleware for connectivity from distributed systems to zSeries and iSeries-based DB2 systems. This article introduces DB2 Connect at a very high level and discusses the different editions and pricing models to help you decide which edition of DB2 Connect is right for you. This article has been updated to include packaging considerations up to and including DB2 Connect V8.2.3. It's available at:
Licensing Distributed DB2 Servers in a High Availability Environment
Are you trying to ensure you're licensing your IBMDB2Universal Databasefor Linux UNIX and Windows(DB2) servers correctly in a high availability environment? Don't have the time nor the will to read through the announcement letters, PLETs, or your licensing sheets? Author Paul Zikopoulos explains it all in plain English. It's available at: http://www.ibm.com/developerworks/db2/library/techarticle/0301zikopoulos/0301zikopoulos.html.
DB2 UDB using Dual Core or Sub-capacity Licensing
Learn about some of the latest hardware technologies, namely dual core processors and sub-capacity partitioning, and their respective considerations when licensing a supported IBMDB2Universal Database(DB2 UDB) server product. This article is available at: http://www.ibm.com/developerworks/db2/library/techarticle/dm-0505zikopoulos/.
Stay tuned for information on the latest book that Paul co-wrote: Apache Derby -- Off to the Races : Includes Details of IBM Cloudscape