How to Replace a Node-to-Switch Component

Use this procedure to replace the following node-to-switch components.

• Node-to-switch fiber-optic cable

• FC host adapter

• FC switch

• GBIC or SFP

1. On the node that is connected to the node-to-switch connection that you are replacing, determine the resource groups and device groups that are running on this node.

   # scstat

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

   # scswitch -S -h from-node

3. Replace the node-to-switch component.

   • For the procedure about how to replace a fiber-optic cable, see the Sun StorEdge 6020 and 6120 Array System Manual.

   • For the procedure about how to replace an FC switch, see the documentation that shipped with your FC switch hardware.

   • For the procedure about how to replace an FC host adapter, see your host adapter documentation.

   • For the procedure about how to replace GBIC or an SFP, see your switch documentation.

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

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

How to Replace a Host Adapter

Use this procedure to replace a failed host adapter in a running cluster. This procedure defines Node N as the node with the failed host adapter that you are replacing.

1. Determine the resource groups and device groups that are running on all nodes.

   Record this information because you use this information in Step 8 of this procedure to return resource groups and device groups to these nodes.

   # scstat

2. Move all resource groups and device groups off Node N.

   # scswitch -S -h from-node

3. Shut down Node N.

   For the procedure about how to shut down and power off a node, see your Sun Cluster system administration documentation.

4. Power off Node N.

   For more information, see your Sun Cluster system administration documentation.

5. Replace the failed host adapter.

   For the procedure about how to remove and how to add host adapters, see the documentation that shipped with your nodes.

6. Power on Node N.

   For more information, see your Sun Cluster system administration documentation.

7. Boot Node N into cluster mode.

   For more information about how to boot nodes, see your Sun Cluster system administration documentation.

8. Return the resource groups and device groups that you identified in Step 1 to all nodes.

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

   For more information, see your Sun Cluster system administration documentation.