ServerNet Cluster Manual
Upgrading a ServerNet Cluster
ServerNet Cluster Manual—520575-003
4-86
Steps for Merging a Split-Star Topology and a Star
Topology to Create a Tri-Star Topology
c. Log on to a node in the range of ServerNet node numbers 17 through 24, and 
use the TSM Service Application to verify the operation of the local X-fabric 
and Y-fabric cluster switches (X3 and Y3).
14. To configure and start Expand-over-ServerNet lines between the three star groups 
of the tri-star topology, use the guided procedure for configuring a ServerNet node. 
Unless the automatic line-handler configuration feature is enabled, you must run 
the guided procedure on every node in order to configure and start Expand-over-
ServerNet lines to all other nodes.
From the system console of that node, choose Start>Programs>Compaq 
TSM>Guided Configuration Tools>Configure ServerNet Node. Online help can 
assist you in performing the procedure.
15. Use SCF to make sure direct ServerNet communication is possible on both fabrics 
between all nodes connected to the cluster switches:
>SCF STATUS SUBNET $ZZSCL, PROBLEMS 
Note. The T0294AAG (or a superseding SPR) must be applied in order to use the 
PROBLEMS option.
If the PROBLEMS option is not available, use the SCF STATUS SUBNET $ZZSCL 
command on all nodes. SCF STATUS SUBNET $ZZSCL requires T0294AAA or a 
superseding SPR. If remote passwords are configured, you can issue the SCF STATUS 
SUBNET $ZZSCL command for a remote node (for example, \REMOTE) from the local 
node as follows:
SCF STATUS SUBNET \REMOTE.$ZZSCL
This command eliminates the need to establish a logon window for each node.










