ServerNet Cluster Manual

Adding or Removing a Node
ServerNet Cluster Manual—520575-003
6-3
Removing a Node From a ServerNet Cluster
5. On all other nodes in the cluster:
a. Use the Expand subsystem SCF ABORT LINE command to abort the Expand-
over-ServerNet line for the node being removed.
b. Use the WAN subsystem SCF STOP DEVICE command to stop the Expand-
over-ServerNet line-handler process for the node being removed.
c. If you know the line-handler process will not be needed, use the WAN
subsystem SCF DELETE DEVICE command to delete the line-handler process
for the node being removed.
6. On the node being removed, bring ServerNet cluster services to a STOPPED
logical state. You can use TSM or SCF to stop ServerNet cluster services.
To stop ServerNet cluster services using the TSM Service Application:
a. Right-click the ServerNet Cluster resource, and select Actions.
b. From the Actions list, select Stop ServerNet Cluster Services and click Perform
action. The Action Status window shows the progress of the action.
c. Click Close to close the Actions dialog box.
d. In the Attributes tab of the details pane, verify that the ServerNet Cluster State
is stopped.
To stop ServerNet cluster services using SCF, issue the SCF STOP SUBSYS
$ZZSCL command:
-> STOP SUBSYS $ZZSCL
The ServerNet cluster monitor process itself does not stop but remains an active
process. The node being removed informs other nodes that it is leaving the cluster.
7. Disconnect the cables that link the MSEBs in group 01 to the X-fabric and Y-fabric
cluster switches.
Note. Disconnect both cables at roughly the same time. If you disconnect one cable and
then allow more than two minutes to pass before disconnecting the second cable, TSM
alarms will be generated. If value-added diagnostics are enabled, these alarms will be
dialed out to the service provider.