ServerNet Cluster Manual

Managing a ServerNet Cluster
ServerNet Cluster Manual—520575-003
5-33
Stopping ServerNet Cluster Services
Stopping ServerNet Cluster Services
You can use TSM or SCF to stop ServerNet cluster services.
Using TSM to Stop ServerNet Cluster Services
1. Log on by using the TSM Service Application.
2. Click the Cluster tab to view information about the ServerNet cluster.
3. In the tree pane, right-click the ServerNet Cluster resource, and select Actions.
4. From the Actions list, click Stop ServerNet Cluster Services.
5. Click Perform action. The Action Status window shows the progress of the action.
6. Click Close to close the Actions dialog box.
7. Verify that ServerNet cluster services are stopped. (See Using TSM to Check the
ServerNet Cluster Subsystem Status on page 5-16.)
Using SCF to Stop ServerNet Cluster Services
To stop ServerNet Cluster services on the local system, use the SCF STOP SUBSYS
$ZZSCL command:
> STOP SUBSYS $ZZSCL
When ServerNet Cluster Services Are Stopped
When you stop ServerNet cluster services, the ServerNet cluster monitor process
brings ServerNet cluster services to a STOPPED logical state. The ServerNet cluster
monitor process itself does not stop, but remains an active process. Terminating
access to the ServerNet cluster proceeds as follows:
1. The ServerNet cluster monitor process sets the ServerNet cluster subsystem state
to STOPPING and logs the state change.
2. The ServerNet cluster monitor process informs each remote ServerNet cluster
monitor process that the subsystem is stopping.
3. The ServerNet cluster monitor process instructs each local processor to terminate
ServerNet connectivity.
4. When the processors have completed this, the ServerNet cluster monitor process
moves the subsystem to the STOPPED state and logs the change. Only the
subsystem state changes are logged. Individual path state changes are not logged.
Note. The SCF STOP SUBSYS $ZZSCL command stops ServerNet data traffic for a node on
both external fabrics (X and Y). By contrast, the SCF STOP SERVERNET $ZSNET command,
when used on a ServerNet node, stops internal and external ServerNet data traffic for only one
fabric (X or Y). There is no SCF command to stop ServerNet data traffic on only one external
fabric.