This topic describes the WebSphere message migration utility.
The message migration utility takes the contents of existing WebSphere
Application Server Version 5 embedded messaging queues and puts them onto
WebSphere Application Server Version 6 default messaging queues.
You run the message migration utility only once for a particular queue
unless one of the following is true:
- The first message migration attempt was unsuccessful.
- You wish to reverse the message migration (that is, move the messages
back to WebSphere Application Server Version 5).
If you migrate a server and messages from Version 5 to Version 6
and then decide to reverse the migration, the reversal must be done in the
following order:
- Run the message migration utility in the direction: Version 6 to Version
5.
- Reverse the server migration.
It is possible to migrate multiple queues during a single execution of
the utility.