This section describes how to use ARM to display the status of all ARM-registered address spaces (including the address spaces of server instances) in the WebSphere Application Server for z/OS environment.
WebSphere Application Server for z/OS ships with all controllers issuing automatic restart management (ARM) registration commands. If your installation enables ARM, you should read this section.
This section describes how to use ARM to display the status of all ARM-registered address spaces (including the address spaces of server instances) in the WebSphere Application Server for z/OS environment. ARM is used to restart all address spaces that go down, if they are registered with ARM. This does not apply if the address spaces are canceled.
Each WebSphere Application Server for z/OS controller registers with ARM. If a controller terminates abnormally or the system fails, ARM will try to restart the failing address spaces. In doing this, ARM will ensure that dependent address spaces are grouped together and will start in the appropriate order. In general, the default ARM policy will restart WebSphere Application Server for z/OS in place. If using a sysplex, see Automatic restart management for setup guidelines to ensure that no cross-system restarts are performed.