This topic describes the WebSphere message migration utility.
The message migration utility takes the contents of existing WebSphere
Application Server Version 5.x embedded messaging queues and puts them onto
WebSphere Application Server version 6.0.x 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.x).
If you migrate a server and messages from Version 5.x to version 6.0.x
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.