Introduction to WebSphere MQ V6.0 migration

 

This section gives an introduction to the documentation for customers considering migrating to WebSphere MQ V6.0.

The migration process is described, and instructions given, in the Quick Beginnings book for your platform, or, for z/OS, in the WebSphere MQ for z/OS System Setup Guide and the Program Directory for WebSphere MQ for z/OS.

It is not the intention of this document to cover the migration of every possible combination of a WebSphere MQ V6.0 installation and associated applications. This would not be possible because the product is so flexible. This document highlights some of the main areas that are believed to impact users and gives some guidance on the type of action you will need to take to continue 'business as usual'.

Prior to the installation or migration of any software, you are recommended to make a full backup of your system to ensure that you can recreate the system to its original working environment should any problems occur.

 

Some general considerations

The following lists some of the general issues to consider when making a migration plan.

• Additional migration information is held in the Quick Beginnings book for the platform you are installing on (or the WebSphere MQ for z/OS System Setup Guide for z/OS). You are recommended to consult the relevant Quick Beginnings book for any migration information that could affect the installation you are preparing for.

• Develop a backup plan in which you back up the relevant information on the queue manager and server.

• Read the latest README file for the product you are working with. We can find these files on the IBM home pages for the relevant products.

• Do we need to have the queue manager active all the time? If this is the case, and you are unable to shut down the system running this queue manager, you might need to consider a different migration approach. This will mean performing the migration using the following general steps:

  • Copy all resources from the server concerned to another server.

  • Perform a migration on the duplicate server.

  • Switch over to the new server and queue manager at a convenient time.

• Be prepared to record a number of details about the existing system topology, including such things as the names of the queue managers and their queues, clients, channels and so on.

• This is also a good time to check through all existing queue managers to see whether there are any queues that are no longer needed, and whether there are any queue managers that are no longer required. You might also decide that you want to keep certain queue managers at an earlier level and administer them from a migrated system.

• After you migrate a queue manager to WebSphere MQ V6.0, start that queue manager to migrate your file system structure before you start any WebSphere MQ listener associated with that queue manager. Otherwise, you will not be able to start WebSphere MQ listeners after migration.

 

Migrating from a beta version

If you have previously installed a WebSphere MQ V6.0 Beta driver, you MUST uninstall this driver BEFORE you install the GA version of WebSphere MQ V6.0.

 

Supported environments

The supported environments vary according to the changes to the product. Check each of the sections for details of the environment that is impacted.

Queue managers from previous versions of WebSphere MQ (for example WebSphere MQ V5.3 and MQSeries V5.2) are supported, provided that they are put onto a supported platform of a WebSphere MQ V6.0 system.

The operating system on which you want to run a migrated WebSphere MQ Version 6.0 queue manager must be a supported WebSphere MQ V6.0 platform, as documented on the Supported Environment Web page at: http://www.ibm.com/software/integration/wmq/requirements/.

All advice in the WebSphere MQ V6.0 documentation about migration also applies to any previous version of WebSphere MQ.

Where WebSphere MQ V5.3 is stated, the information also applies to WebSphere MQ V5.3.1 on z/OS. For all distributed platforms, where WebSphere MQ Version 5.3 is stated, the information also applies to any previous version of WebSphere MQ.

 

Parent topic:

Migration Information

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