AIX: Applying maintenance level updates

How to apply maintenance level updates to IBM® WebSphere® MQ for AIX® using installp.

Before you begin

If you are running on a server with multiple IBM WebSphere MQ installations, that is, IBM WebSphere MQ Version 7.0.1, Fix Pack 6 (or later), you must identify the installation. Make sure that the commands you enter run against the correct installation; see setmqenv.

You can apply and remove maintenance from a IBM WebSphere MQ MQI client that is not installed on the same server as a queue manager. You do not have to stop any queue managers or logon as administrator. Because you do not have to stop any queue managers, do not do steps 1 to 3 in the following maintenance procedure.

Important: pax and rpmbuild are not supplied as part of the product. You must obtain these from your Linux distribution supplier.

About this task

Stop applications using the installation and use the installp command, to install maintenance level updates to clients and servers. Alternatively, if the installation is in the default installation location, you can use the System Management Interface Tool, SMIT.

Procedure

Log in as a user in group mqm.
Stop all applications using the IBM WebSphere MQ installation.

If you use the IBM WebSphere MQ Managed File Transfer (MFT) component, ensure that any MFT agents have finished all of the file transfers that they were engaged in. There should be no incomplete transfers associated with the agents, and their SYSTEM.FTE.STATE queues should contain no messages.
End all the activity of queue managers associated with the IBM WebSphere MQ installation.
1. Run the dspmq command to list the state of all the queue managers on the system.
  Run either of the following commands from the installation that you are updating:
```
dspmq -o installation -o status
dspmq -a
```
  dspmq -o installation -o status displays the installation name and status of queue managers associated with all installations of IBM WebSphere MQ.
  
  dspmq -a displays the status of active queue managers associated with the installation from which the command is run.
2. Run the MQSC command, DISPLAY LSSTATUS(*) STATUS to list the status of listeners associated with a queue manager.
```
echo "DISPLAY LSSTATUS(*) STATUS" | runmqsc QmgrName
```
3. Run the endmqm command to stop each running queue manager associated with this installation.
  The endmqm command informs an application that the queue manager it is connected to is stopping; see Stopping a queue manager.
  - For the maintenance to proceed, applications must respond to an endmqm command by disconnecting from the queue manager and releasing any IBM WebSphere MQ libraries they have loaded. If they do not, you must find another way to force applications to release IBM WebSphere MQ resources, such as by stopping the applications.
  - You must also stop applications that are using the client libraries that are part of the installation. Client applications might be connected to a different queue manager, running a different installation of IBM WebSphere MQ. The application is not informed about queue managers in the current installation being shut down.
  - Any applications that continue to have IBM WebSphere MQ shared libraries from the installation loaded prevent you applying IBM WebSphere MQ maintenance. An application might disconnect from a queue manager, or be forcibly disconnected, but keep a IBM WebSphere MQ shared library loaded.
4. Stop any listeners associated with the queue managers, using the command:
```
 endmqlsr -m QMgrName
```
Log in as root, or switch to the superuser using the su command.
Install the update in one of the following ways:
- Update the whole installation in the default location:
```
installp -agXYd . all
```
- Update selected filesets in the default location:
```
installp -agXYd . list of file sets
```
- Update the whole product in a non-default location using the -R flag:
```
installp -R USIL_Directory -agXYd . all
```
- Update selected filesets in a non-default location using the -R flag:
```
installp -R USIL_Directory -agXYd . list of file sets
```
USIL_Directory is the installation parent directory. IBM WebSphere MQ is installed underneath the directory. For example, if /USIL1 is specified, the IBM WebSphere MQ product files are located in /USIL1/usr/mqm. /USIL1/usr/mqm is known as the MQ_INSTALLATION_PATH.