Upgrade Guide for DB2 UDB for z/OS > Upgrading a Development Environment Database from the Midtier >

Dedup Files

Upgrades: Releases 6.x, 7.0.x, 7.5.x.

Environments: Development environment only.

This topic is part of an upgrade process. See How to Perform the Upgrade.

During upgphys processing, one of the last steps is generating the dedup files and dedup_prod.jcl. These files are similar to the files that you generate during the Prepare for Production Upgrade process, which is run before starting the production environment upgrade. Since both processes use the same information when generating these files, you can use the dedup files created by either the upgphys process or the Prepare for Production Upgrade process.