ServerNet Cluster Manual

Adding or Removing a Node
ServerNet Cluster Manual—520575-003
6-2
Removing a Node From a ServerNet Cluster
The Configure ServerNet Node guided procedure:
•
Verifies that the group 01 MSEBs are installed and ready.
•
Tells you when to connect fiber-optic cables between the MSEBs and the
cluster switches. Online help shows you show to make the cable connections.
Section 3, Installing and Configuring a ServerNet Cluster, also contains
information about how to connect cables.
•
Starts ServerNet cluster services.
•
Configures Expand-over-ServerNet line handlers.
Removing a Node From a ServerNet Cluster
To remove a node from a ServerNet cluster:
1. Shut down or reroute traffic for any applications using the Expand-over-ServerNet
connection between the node being removed and the rest of the cluster.
2. On all nodes in the cluster, use the Expand subsystem SCF LISTDEV command to
identify the currently configured Expand-over-ServerNet lines:
-> LISTDEV TYPE 63,4
3. On the node being removed, use the Expand subsystem SCF ABORT LINE
command to abort the Expand-over-ServerNet lines to other nodes. You must
repeat the command for each line to be aborted. The command syntax for the SCF
ABORT LINE command is:
-> ABORT LINE $device_name
$device_name
is the device name of an Expand-over-ServerNet line-handler process.
For example:
-> ABORT LINE $SC001
4. Use the WAN subsystem SCF STOP DEVICE and DELETE DEVICE commands to
stop and delete the line-handler process associated with each Expand-over-
ServerNet line. You must repeat the commands for each line-handler process to be
stopped and deleted:
a. Stop the line-handler process:
-> STOP DEVICE $ZZWAN.#SC001
b. If you know the node will not rejoin the cluster later, delete the line-handler
process:
-> DELETE DEVICE $ZZWAN.#SC001