ServerNet Cluster Manual
Upgrading a ServerNet Cluster
ServerNet Cluster Manual—520575-003
4-100
Updating the Firmware and Configuration
The Firmware Update and Configuration Update actions execute the Update Switch 
guided procedure. (There is no direct access to this guided procedure from the Start 
menu.) You can use the guided procedure to update either the firmware or the 
configuration, depending on the TSM action you used to start the guided procedure. 
Detailed steps for using TSM to start the guided procedures follow. Use these steps 
only when instructed to do so by the procedures later in this section:
1. Using the TSM Service Application, log on to a node connected to the cluster 
switch to which you want to download firmware or a new configuration.
2. Click the Cluster tab.
3. Click the plus (+) sign next to the External_ServerNet_X_Fabric or the 
External_ServerNet_Y_Fabric to display the cluster switch.
4. Right-click the Switch resource, and select Actions. The Actions dialog box 
appears.
5. Do one of the following:
•
To download firmware, choose the Firmware Update action.
•
To download a configuration, choose the Configuration Update action.
6. Click Perform action to load the guided procedure for updating the switch.
7. When the guided procedures interface appears, click Start. Dialog boxes guide you 
through the update operation.
To prevent alarms during sensitive operations involving the cluster switch hardware or 
firmware, the TSM ServerNet cluster and cluster switch incident analysis (IA) software 
undergoes a three-minute rest period during:
•
Firmware update action performed using TSM
•
Configuration update action performed using TSM
•
Hard reset action performed using TSM
•
Cluster switch replacement using a guided procedure
Caution. Upgrading the ServerNet II Switch firmware from T0569AAA or upgrading the 
configuration from any version causes a temporary disruption of ServerNet connectivity 
through the cluster switch. Before upgrading the firmware from T0569AAA or updating the 
configuration from any version, you must use the SCF STATUS SUBNET $ZZSCL command 
on all nodes to ensure that ServerNet interprocessor communication (IPC) connectivity is up 
on the other fabric between the nodes. If T0294AAG (or a superseding SPR) is applied, use 
the following command:
SCF STATUS SUBNET $ZZSCL, PROBLEMS










