Operating system considerations

Make sure that the basic operating system configurations for the primary and secondary environments are the same or consistent.

The host name of the primary and secondary environments are used in the IBM® Business Process Manager and IBM Business Monitor configuration data, for example in the serverindex.xml file.

For an IBM BPM server configuration where distributed transactions must be recovered, mirror the transaction logs on a different server that has the same server name, the same host name, and access to the same resource managers as the original server. Information about each server that is involved in a distributed transaction is stored in the transaction logs. This information includes the server name and the host name of the computer on which the server is running. When a distributed transaction is being recovered, the servers that are involved in the recovery use this stored information to contact each other. Therefore, if a server fails and the logs must be recovered on a new server, that new server must have the same server name and host name as the original server. The new server must also have the same access to the same resource managers, databases, and message queues as the original server.

In the examples that are in the topics that follow, all operating systems are deployed with Red Hat Enterprise Linux.