Automatically restarting the CIM server

Since the CIM server serves as a primary system management interface for a system, it should be continuously available.

To support the CIM server availability, startup and shutdown messages are logged to the z/OS console to be used with a systems management program such as IBM® Tivoli® System Automation.

The z/OS CIM server is enabled for the Automatic Restart Manager (ARM). The CIM server needs no additional configuration to use ARM, it always registers itself to ARM. When ARM is active and the CIM server is authorized to register with ARM, then success message CFZ12532I is displayed in the system log. Otherwise, information message CFZ12533I is displayed in the system log to inform you that the CIM server is not registered to ARM.

You can use ARM only for started task procedures or batch jobs. So if you start the CIM server from the UNIX System Services shell, you also get the message CFZ12533I. If you do not plan to use ARM, you can ignore this message, which is issued every time when the CIM server is started.

The CIM server issues the registration and the ready request after a successful bind to the communication socket/s (HTTP, HTTPS, and/or Local). It is deregistered from ARM during its normal shutdown procedure. In all other cases, the CIM server remains registered and is restarted based on the active ARM policy.

In a sysplex, you can start only one CIM server per OS image. Therefore ARM can only be used to restart after an application ABEND and not for cross-system restarts. You must use other facilities to start the CIM server during an IPL.

More information:

• z/OS MVS Setting Up a Sysplex