ServerNet Cluster Manual

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Upgrading a ServerNet Cluster

ServerNet Cluster Manual—520575-003

4-85

Steps for Merging a Split-Star Topology and a Star

Topology to Create a Tri-Star Topology

6. On the other star group of the split-star cluster, log on to a node and run the Add

Switch guided procedure to update the firmware and configuration for the X-fabric

cluster switch.

7. When all of the cluster switches on the X fabric are updated, connect the two-lane

links between the three cluster switches on the X fabric of the tri-star topology. See

Connecting the Two-Lane Links on page 4-87.

8. Wait at least 4 to 5 minutes for the X fabric to become operational. Then use the

TSM Service Application to verify that there are no alarms on the X fabric.

9. Repeat Steps 4 through 6 for the Y fabric on the cluster that uses the split-star

topology. You can continue the guided procedure on the node you are currently

using.

10. When the cables are connected, click Continue in the Connect the Cables dialog

box.

11. In the Local Switch Information dialog box, click Test to verify the connection

between the cluster switches.

You must log on to nodes attached to at least two different star groups of the tri-

star topology in order for the guided procedure to test all of the remote connections

on both fabrics.

12. Log on to a node attached to a different star group of the tri-star topology to test

the other remote connections. Run the Add Switch guided procedure again. In the

Local Switch Information dialog box, click the Test button to test the connectivity

between the local remote switches.

13. Use the TSM Service Application to verify the operation of the cluster switches:

a. Log on to a node in the range of ServerNet node numbers 1 through 8, and

use the TSM Service Application to verify the operation of the local X-fabric

and Y-fabric cluster switches (X1 and Y1).

b. Log on to a node in the range of ServerNet node numbers 9 through 16, and

use the TSM Service Application to verify the operation of the local X-fabric

and Y-fabric cluster switches (X2 and Y2).

If you log on to a

node attached to . . .

The guided procedure checks

these remote connections . . .

X1/Y1 X1/Y1 to X2/Y2, and

X1/Y1 to X3/Y3

X2/Y2 X2/Y2 to X1/Y1, and

X2/Y2 to X3/Y3

X3/Y3 X3/Y3 to X1/Y1, and

X3/Y3 to X2/Y2