Upgrade Guide for DB2 UDB for z/OS and OS/390 > Database and UI Upgrade Planning > Planning Your Upgrade >

Considering Code Page Support

Development databases require ASCII code pages, because databases with EBCDIC code pages do not support two critical procedures in a development environment upgrade:

• Merging prior configuration changes into a new custom configuration repository
• Compiling a new Siebel repository file (.srf file) from the new repository

Additional limitations on databases with EBCDIC code pages include the following:

• Siebel Web Client migration is not supported
• Siebel Dun & Bradstreet server components are not supported

Before you conduct an upgrade, carefully read Release Notes on Siebel SupportWeb for information about known restrictions. For guidelines about choosing the code page for your subsystem, see Implementing Siebel eBusiness Applications on DB2 UDB for z/OS and OS/390.