Because server instances register with the default restart group, when a system failure occurs, automatic restart management attempts to restart the entire default group on another system in the sysplex. If you want to create a restart group other than this default group, you must follow the following rules and restrictions that apply for z/OS automatic restart management policies. For more information about how to actually change these policies, see, z/OS MVS Setting Up a Sysplex, SA22-7625.
For example, if you have a cell named PLEX1 and server named BBOS001, the ARM element name would be PLEX1BBOS001.
Since wildcard characters can be used in the ARM policy, it is possible to exclude an entire group of servers by using a common naming scheme within your cell.
For example, the following section of the ARM policy will prevent any node agents from starting, assuming each node agent in your cell has a name that adheres to the form BBONxxx:
RESTART_GROUP(WEBSPHERE) ELEMENT(PLEX1BBON*) RESTART_ATTEMPTS(0,150) RESTART_TIMEOUT(600) READY_TIMEOUT(1200) TERMTYPE(ALLTERM) RESTART_METHOD(BOTH,PERSIST)This ARM policy will also prevent the node agent from restarting in-place. This specification can be modified by changing the RESTART_METHOD and TERMTYPE parameters. See z/OS MVS Setting Up a Sysplex, SA22-7625 for more information.