Siebel Database Upgrade Guide for DB2 for z/OS > Planning a Siebel Database Upgrade >
Upgrading Your DB2 Software
Upgrades: All upgrades.
Environments: Development environment only.
Before you upgrade, carefully review Siebel System Requirements and Supported Platforms on Oracle Technology Network to verify that you are using the currently supported versions of the following DB2 software:
- DB2 for z/OS. You must be using DB2 UDB for z/OS Version 8 to upgrade to Siebel CRM 8.1. If you are using an earlier version of DB2, you must migrate to and thoroughly test the currently supported version before you upgrade to Siebel CRM 8.1.
NOTE: The current version of Siebel Business Applications supports IBM DB2 Version 10 for z/OS, IBM DB2 Version 9 for z/OS, and IBM DB2 UDB for z/OS Version 8. To upgrade to Siebel CRM version 8.1, however, you must use DB2 UDB for z/OS Version 8. You can migrate to later DB2 versions after the upgrade process is completed.
- DB2 Connect. Siebel Developer Web Clients (Siebel Mobile Web Client in connected mode) and Siebel Servers communicate with DB2 for z/OS through DB2 Connect middleware. Verify that you are using the version of DB2 Connect supported for Siebel CRM 8.1.
Make sure that all software meets the requirements specified in Siebel System Requirements and Supported Platforms on Oracle Technology Network.