Preparing your system to install or migrate to Db2 12
The key to a successful installation or migration of Db2 is planning. Prepare your environment and system before you begin installing or migrating.
Before you begin
Familiarize yourself with the various changes that Db2 12 introduces, as described in Changes to plan for in Db2 12.
In particular, plan to resolve any incompatible changes that might impact your migration to Db2 12. For a summary of such changes, see Incompatible changes in Db2 12 and Function that Db2 12 no longer supports .
Plan the amount of direct-access storage and virtual storage that you need. Planning and coordinating with other Db2 subsystems is essential if you plan to install the distributed data facility (DDF). Review the values that are needed for the parameters on the installation and migration panels. By planning in advance, your task of filling in the parameters becomes easier.
For information about specific planning for Db2 data sharing, see Planning for Db2 data sharing.