Configuring multi-instance integration nodes
Use IBM® MQ to configure an integration node to run in multi-instance mode for high availability.
Before you begin
- Review the topic Multi-instance queue managers in the IBM MQ product documentation to understand the use of multi-instance queue managers.
About this task
- A file server is configured to host both the shared work path directory for the multi-instance integration node and the shared directories for the multi-instance queue manager.
- The file server is shared between two computers, each of which has a licensed copy of the IBM Integration Bus and IBM MQ products installed.
The steps apply to all operating systems that are supported by IBM Integration Bus and IBM MQ, except for z/OS®. Multi-instance integration nodes and multi-instance queue managers are not supported on z/OS.
To configure an integration node to run in multi-instance mode, complete the following steps.
- Create a shared path directory on an NFS or NAS server.
On Windows, you can use a shared UNC path. Follow the steps as described in the IBM MQ product documentation; see Creating a shared file system.
- Create or configure the multi-instance queue manager. Follow the appropriate steps for your operating system as described in the IBM MQ product documentation; see Create a multi-instance queue manager.
- Follow the steps to create the multi-instance integration node as described in Creating a multi-instance integration node.
What to do next
After you have created a multi-instance integration node, you can also optionally complete the following actions.
- Use the mqsilist command to view integration nodes, and which integration nodes are multi-instance.
- Delete a multi-instance integration node, as described in Deleting a multi-instance integration node.
- Delete a multi-instance queue manager, as described in the IBM MQ product documentation, Deleting a multi-instance queue manager.
- Verify shared file system locks, as described in the IBM MQ product documentation, Verifying shared file system behavior.
- Back up, and later restore a multi-instance integration node, as described in Backing up and restoring a multi-instance integration node
- Configure the global cache to withstand software or hardware failures for as long as possible, as described in Configuring the global cache for multi-instance integration nodes.
- Learn how to fail over multi-instance integration nodes, as described in Failing over a multi-instance integration node and queue manager.