Introduction › UPGRADE Version 14.0 to 15.0 and Fallback

UPGRADE Version 14.0 to 15.0 and Fallback

With Version 15.0, each and every upgrade and fallback issues from past releases have been reviewed. A set of new rules and processes allow a user at Version 14.0 to upgrade with one of the following two basic strategies:

• Users of small or test systems, who are permitted an outage to do an upgrade, can use a simple set of steps similar to prior releases to perform the upgrade in one simple outage while the MUF is disabled and without any executions of Version 14.0.
• For production environments and large users, there is a straight-forward set of multiple step processes that allow an upgrade with no system outage but short times when a single database (or set) might need to be closed and reopened.

To support these strategies there are now three ways to upgrade a CA Datacom/DB 14.0 MUF to a Version 15.0 MUF. The three upgrade methods are:

• Active MUF Upgrade (new)
• Parallel MUF Upgrade (new)
• Traditional Upgrade (prior single method)

Information about all three methods is documented in the CA Datacom/DB article titled, “Performing a Version 14.0 to 15.0 Multi-User Facility (MUF) Upgrade.”