Applying service to the Integration Bus component

You can download maintenance updates for all components of IBM Integration Bus from a website, in the form of a Program Temporary Fix (PTF), also known as a fix pack. Fix packs are cumulative; therefore, if multiple fix packs are available, you do not have to install a previous fix pack before you install the latest that is available. However, you must first purchase the GA (general availability) code to ensure that you comply with your license agreement. You can find the latest information about current fixes by following the link Recommended fixes in the Download section of the IBM Integration Bus support web page.

In some circumstances, fix packs are also provided as a media refresh; DVDs are re-created, and electronic images on IBM Passport Advantage® are replaced. Check with your IBM representative if you want a media refresh.

Fix packs for IBM Integration Bus are installed by using the same technology as the GA release. Therefore, product files are consistently tracked and updated appropriately. For information about the default directories for a typical installation, see Coexistence and migration.

If you have applied one or more interim fixes to your existing installation, contact your IBM Service representative for instructions and possible updated interim fixes for the fix pack level that you are installing.

Because you can install more than one copy of the Integration Bus component on a single computer, you can choose how to apply service:

1. Apply service to an existing installation.

   When you apply the fix pack, the new level of the product overwrites the existing level. The installer prohibits you from installing a previous modification or fix pack over a more recent one. You must stop all brokers before you apply service. All the brokers and resources that you have defined are retained. When the fix pack is successfully installed, restart the brokers.

   Note: By default, the fix pack installer offers a new location for the installation with a directory name based on the fix pack level. To apply the fix pack to an existing installation, you must select the directory name of your existing installation when you are prompted for the target location.
2. Install the fix pack level of the product at a new location.

   Fix packs are supplied as complete installations. You can install the product in a new location on your computer by using the fix pack packages. You can install only within the terms of your license:

   • You must have purchased a GA level of the product on this computer.
   • You must conform to the license restrictions for the number of installations on a single computer; your license might permit you to install more than one copy of the product, but allow you to run only one installation at a time.

   This option provides several advantages:

   • You do not have to stop brokers to complete the installation.
   • You can choose which broker runs at which service level by running the appropriate mqsiprofile before you start the component.
   • You can back out a broker to the previous service level by using the mqsiprofile from the older code level, and restarting the broker.

   If you already have more than one installation on the computer, read the additional information in Applying service on computers with multiple installations.

3. Install the fix pack level of the product without having a previous installation

   Fix packs are supplied as complete installations, so it is possible to install a fix pack on a computer that does not have a previous installation of the product. You can only within the terms of your license and specifically, you must have purchased a GA level of the product on the target computer.

Service is not affected by the operation mode in which your broker is working.