How to Replace a Node-to-Switch Component in a Running Cluster

Use this procedure to replace the following node-to-switch components in a running cluster:

• Node-to-switch fiber optic cable

• GBIC on an FC switch, connecting to a node

1. On the node connected to the component you are replacing, determine the resource groups and device groups running on the node.

   Record this information because you will use it in Step 4 of this procedure to return resource groups and device groups to these nodes.

   # scstat

2. Move all resource groups and device groups to another node.

   # scswitch -S -h nodename

3. Replace the node-to-switch component.

   • For the procedure on replacing a fiber optic cable between a node and an FC switch, see the Sun StorEdge network FC switch-8 and switch-16 Installation and Configuration Guide.

   • For the procedure on replacing a GBIC on an FC switch, see the SANbox 8/16 Segmented Loop Switch User's Manual.

4. Return the resource groups and device groups you identified in Step 1 to the node that is connected to the component you replaced.

   # scswitch -z -g resource-group -h nodename # scswitch -z -D device-group-name -h nodename