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Uninstalling IBM WebSphere MQ on AIX - Middleware News


Uninstalling WebSphere MQ on AIX

On AIX, you can uninstall theWebSphere MQ server or client using the System Management Interface Tool (SMIT) or the installp command.

Before you begin

If any updates have been applied, remove them before starting this uninstallation procedure. For more information, see AIX: Restoring the previous maintenance level on WebSphere MQ version 7.1.

Procedure

  1. Stop all WebSphere MQ applications associated with the installation you are uninstalling.
  2. For a server installation, end any WebSphere MQ activity associated with the installation you are uninstalling:
    1. Log in as a user in the group mqm.
    2. Set up your environment to work with the installation you want to uninstall. Enter the following command:
      . MQ_INSTALLATION_PATH/bin/setmqenv
      where MQ_INSTALLATION_PATH refers to the location where WebSphere MQ is installed.
    3. Display the state of all queue managers on the system. Enter the following command:
      dspmq -o installation
    4. Stop all running queue managers associated with the installation you want to uninstall. Enter the following command for each queue manager:
      endmqm QMgrName
    5. Stop any listeners associated with the queue managers. Enter the following command for each queue manager:
       endmqlsr -m QMgrName
  3. Log in as root.
  4. Uninstall WebSphere MQ using either installp or smit. If WebSphere MQ was installed in a non-default location, you must use installp to uninstall.
    • Uninstall using installp by entering one of the following commands:
      • For an installation in the default location /usr/mqm
        installp -u mqm
      • For an installation in a non-default location:
        installp -R usil -u mqm
        where usil is the path of the User Specified Install Location (USIL) specified when the product was installed.
    • Uninstall using smit:
      1. Select the required smit window using the following sequence:
          Software Installation and Maintenance
    Software Maintenance and Utilities
      Remove Installed Software
      2. List the software in the SOFTWARE name field:
        1. Enter .
        2. Press F4
      3. Select the file sets to uninstall from the list (those beginning with mqm), and pressEnter. There is an option at this stage to do a preview. Leave the option set to the default value of Yes to preview the file sets you are uninstalling, or select No to not preview these file sets.
      4. Press Enter on the Remove Installed Software panel, it asks whether you are sure, press Enter.

What to do next

  • If the product successfully uninstalled, you can delete any files and directories contained in the/usr/mqm directory under the User Specified Install Location (USIL) specified in the installpuninstallation command.
  • Use the lslpp command to check for other products installed in the USIL. If there are no other products installed in the USIL and you do not intend to use it again, you can delete the USIL using the rmusil command.
  • If there are no other WebSphere MQ installations on the system, and you are not planning to reinstall or migrate, you can delete the /var/mqm and /etc/opt/mqm directory trees. Deleting these directories destroys all queue managers and their associated data.
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