High availability installation

Control-M High Availability enables you to install a secondary instance of Control-M full installation, Control-M/EM, or Control-M/Server. If there is a failure on the primary host, Control-M continues to run on the secondary host.

A secondary installation uses the same installation parameters, database and schema, as the primary installation and must be installed on the same operating system. If there is a conflict in one of the parameters, such as the port, update the port number in the primary prior to installing the secondary.

NOTE: You must have an existing Control-M environment before you can install the secondary instance. For a more detailed list of requirements, see High availability requirements.

The following procedures describe how to install a secondary on UNIX and Windows:

• Installing a secondary on UNIX
• Installing a secondary on Windows

After you have installed the secondary, the following occurs:

• The Configuration Agents of Control-M/EM and Control-M/Server are up and running and monitoring the Configuration Agent on the primary.

  NOTE: If you restarted your machine, you need start up the Control-M/EM and Control-M/Server Configuration Agent. To configure the automatic startup/shutdown script for Control-M/EM on UNIX, see Configuring the automatic startup/shutdown script for Control-M/EM on UNIX. To configure the automatic startup procedure for Control-M/Server on UNIX, see Automatic startup/shutdown procedure for Control-M/Server on UNIX.

• The secondary hostname is automatically added to the Authorized Control-M/Server hosts list and its Control-M/Agents on the primary are updated.
• Files are synced between the primary and secondary (see High availability compatibility).
• (PostgreSQL only) Access to the shared directory and data replication is periodically checked after you have initialized the replication process (see Starting database replication).

For more information about failover and fallback, see High availability.

To uninstall a secondary Control-M full, Control-M/EM or Control-M/Server, see Control-M full uninstall, Control-M/EM uninstall, or Control-M/Server uninstall.