DB2® Universal Database for OS/390® Version 7.1 Certification Guide

Movement to Data Sharing

The movement to a DB2 data sharing environment can be done generally in two different ways. A new install of DB2 can be done giving you the opportunity to start with a clean subsystem to move applications into. This also makes the monitoring of initial data sharing performance easier and at this time new naming standards could be implemented. So while a new install is less painful, it is not often practical. The other option, of course, is to migrate existing subsystems together by enabling a DB2 subsystem as a data sharing subsystem and then adding members to the group. This is much easier for the movement of very large applications and it has less of an impact on distributed processing. It is also the more common scenario ...