Coordinating System Operations with Automatic Restart Manager

SA z/OS system operations provides coordination with the Automatic Restart Manager. The Automatic Restart Manager (ARM) is a base z/OS component. It is a recovery function that automatically restarts designated applications when:

• The application ends abnormally.
• The system that the application is running on is part of a sysplex, and that system fails. In this case, ARM will attempt to restart the application on another system within the sysplex.

SA z/OS coordinates with ARM to:

• Determine which facility is responsible for restarting a specific application.
• Avoid possible duplications or conflicts in application recovery attempts.
• Allow you to take full advantage of SA z/OS fallback capabilities for applications running on sysplexes. SA z/OS continues to automate an application after it has been moved to a fallback system, provided SA z/OS is installed on that system. If it is not installed on the fallback system, SA z/OS is still aware that the application is active on a system other than its primary one and does not attempt to restart it.

You have to define the Automatic Restart Manager policy using the administrative data utility for ARM policy data (IXCMIAPU) described in z/OS MVS Setting Up a Sysplex.

SA z/OS resolves Automatic Restart Manager statuses to SA z/OS statuses, incorporates Automatic Restart Manager-related conditions, and provides one status related to Automatic Restart Manager:

• EXTSTART - The application is being started or restarted externally.