This chapter describes the DB2 for z/OS database tasks you must complete before upgrading to the current Siebel CRM release. Also review the chapter in Siebel Database Upgrade Guide that describes the basic database preparations for a Siebel upgrade and perform any applicable tasks before starting your upgrade. This chapter includes the following topics:

• Verifying Database Configuration
• Creating Storage Groups
• Updating Table Space Group Names
• Process of Preparing the Storage Layout of the Schema
• Reviewing EIM Table Partitioning
• Converting LONG VARCHAR Columns to CLOB Columns
• Rebuilding Target Tables Containing LONG VARCHAR Columns
• Backing Up the Database
• Granting a Siebel User Upgrade Authorization