The message migration utility takes the contents of existing WebSphere® Application Server Version 5 embedded messaging
queues and puts them onto service integration bus 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 want to reverse the message migration (that is, move the messages
back to WebSphere Application Server Version 5.1).
If you migrate a server and messages from
Version 5.1 to a later version and
then decide to reverse the migration, the reversal must be done in
the following order:
- Run the message migration utility in the direction: later version
to Version 5.1.
- Reverse the server migration.
It is possible to migrate multiple queues during a single execution
of the utility.