ARM (Automatic Restart Manager), Automatic Restart Manager (ARM), registering with, registering with ARM" /> Activating an ARM policy

 

Activating an ARM policy

To start your automatic restart management policy, issue the following z/OS command:

SETXCF START,POLICY,TYPE=ARM,POLNAME=mypol

When the policy is started, all systems connected to the ARM couple data set use the same active policy.

Use the SETXCF STOP command to disable automatic restarts.

 

Registering with ARM

WebSphere MQ registers automatically as an ARM element during queue manager startup (subject to ARM availability). It deregisters during its shutdown phase, unless requested not to.

At startup, the queue manager determines whether ARM is available. If it is, WebSphere MQ registers using the name SYSMQMGRssid, where ssid is the 4-character queue manager name, and SYSMQMGR is the element type.

The STOP QMGR MODE(QUIESCE) and STOP QMGR MODE(FORCE) commands deregister the queue manager from ARM (if it was registered with ARM at startup). This prevents ARM restarting this queue manager. The STOP QMGR MODE(RESTART) command does not deregister the queue manager from ARM, so it is eligible for immediate automatic restart.

Each channel initiator address space determines whether ARM is available, and if so registers with the element name SYSMQCHssid, where ssid is the queue manager name, and SYSMQCH is the element type.

The channel initiator is always deregistered from ARM when it stops normally, and remains registered only if it ends abnormally. The channel initiator is always deregistered if the queue manager fails.