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The process is the same except that:
v If you are moving to a new machine, there is one additional step, which is
to transfer data from the old machine to the new.
v If you are upgrading the system on the same machine, you must save your
MQSeries data because the migration process completely deletes your old
version of the product.
To help you migrate, MQSeries for AS/400, V5.1 includes a utility program
called MIGRATEMQM. This program migrates your MQSeries configuration
and objects to MQSeries for AS/400, V5.1. It also creates a new queue
manager with the same name as the original one. (This queue manager will
act as the default queue manager on your new system unless you have
already defined a default queue manager). The migration program reads
information from the earlier release and creates a matching queue manager at
the new level. It also creates all the MQSeries objects such as queues and
channels. It copies messages held on the old queue manager’s queues to the
new queue manager. It does not, however, migrate your authority definitions.
In MQSeries for AS/400, V5.1, each queue manager has its own library
containing that queue manager’s journals and journal receivers. In earlier
versions of MQSeries for AS/400, all the journals were in QUSRSYS and all
the receivers were in QMQMDATA. The migration program obtains the
configuration and message data from the journals and data library of the
earlier release.
Before Migration
Before migrating to MQSeries for AS/400, V5.1, carry out the following
procedure on the version of MQSeries for AS/400 that is currently installed:
1. Stop all applications that are using the existing version of MQSeries for
AS/400.
2. End all MQSeries channels. To do this, use the WRKMQMCHL command
and select option 15.
3. Exit the administration utility if it is running.
4. End the MQSeries command server. To do this, enter the command:
ENDMQMCSVR MQMNAME(QMGRNAME) OPTION(*IMMED)
where QMGRNAME is the name of the queue manager.
5. Remove any unwanted messages from your MQSeries queues. To do this,
use the WRKMQMMSG command and select option 4.
6. Resolve any in-doubt messages that are held by sender or server
channels. To do this, use the WRKMQMCHST command and select
option 17.
7. Reset the media recovery point. To do this, enter the command:
RCDMQMIMG OBJ(*ALL) OBJTYPE(*ALL)
Migrating MQSeries
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MQSeries for AS/400, V5.1 Quick Beginnings