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Before you begin Check the readme.html file for any updates to these installation instructions; see the product readmes web page. Check that you have enough memory and disk space; see IBM Integration Bus system requirements. Check that you have completed any prerequisite steps; see Preparing the system. If you are using Red Hat Linux 6.5 with WebKitGTK version webkitgtk.x86_64 1.2.6-5.el6, complete the steps in the following topic to work around problems with the Eclipse SWT browser: IBM Integration Toolkit on RedHat 6.5 crashes with "JVM terminated. Exit code=160" error. If you are using Red Hat Linux 6.x or 7.x, you might need the GTK2 32-bit drivers installed on Linux; for more information, see IBM Integration Toolkit on Linux becomes unresponsive after opening a DFDL or XSD file. If you are using Red Hat Linux 7.1, complete the steps in the following topic to work around problems with the Eclipse SWT browser: Internal web browser in IBM Integration Toolkit

The Sun Cluster HA for WebSphere MQ data service can be configured only as a failover service – WebSphere MQ cannot operate as a scalable service and, therefore, the Sun Cluster HA for WebSphere MQ data service can be configured to run only as a failover service. Mounting /var/mqm as a Global File System – If you intend to install multiple WebSphere MQ Managers, then you must mount /var/mqm as a Global File System. After mounting /var/mqm as a Global File System, you must also create a symbolic link for /var/mqm/qmgrs/@SYSTEM to a Local File System on each node within Sun Cluster that will run WebSphere MQ, for example: # mkdir -p /var/mqm_local/qmgrs/@SYSTEM # mkdir -p /var/mqm/qmgrs # ln -s /var/mqm_local/qmgrs/@SYSTEM /var/mqm/qmgrs/@SYSTEM # This restriction is required because WebSphere MQ uses keys to build internal control structures. These keys are derived from the ftok() function call and need to be unique on each node. Mounting /var/mqm as a G

WebSphere MQ is an IBM messaging solution which enable applications to communicate each other asynchronously. Application A for example need not to be connected direct to application B to exchange information moreover application B need not to be running for the application A to communicate. Application A simply place the message in container called queue and application B will retrieve the message from that queue when it is available. That is the meaning of asynchronous communication messaging solutions accomplish. Other messaging solutions include Oracle Streams Advanced Queuing The following post is showing the installation of IBM Webspere MQ version 7.5 on Redhat Enterprise Linux 5.8 (x86_64) platform. You can download the trial software from IBM site.  In this post: - Setup WebSphere user and Group - Kernel Configuration Parameters - Read and Accept License - Install WebSphere MQ Components - Post Installations - Verifying Installation - Start WebSphere MQ E