How to Replace a Node-to-Switch Component in a Cluster Without Multipathing

Before You Begin

This procedure provides the long forms of the Sun Cluster commands. Most commands also have short forms. Except for the forms of the command names, the commands are identical. For a list of the commands and their short forms, see Appendix A, Sun Cluster Object-Oriented Commands, in Sun Cluster 3.1 - 3.2 Hardware Administration Manual for Solaris OS.

1. Become superuser or assume a role that provides solaris.cluster.read and solaris.cluster.modify RBAC authorization.

2. If the physical data path has failed, do the following:

   1. Replace the component.

   2. Fix the volume manager error that was caused by the failed data path.

   3. (Optional) If necessary, return resource groups and device groups to this node.

   You have completed this procedure.

3. If the physical data path has not failed, determine the resource groups and device groups that are running on Node A.

   • If you are using Sun Cluster 3.2, use the following commands:

     # clresourcegroup status -n NodeA # cldevicegroup status -n NodeA

     -n NodeA

     The node for which you are determining resource groups and device groups.

   • If you are using Sun Cluster 3.1, use the following command:

     # scstat

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

   • If you are using Sun Cluster 3.2, use the following command:

     # clnode evacuate nodename

   • If you are using Sun Cluster 3.1, use the following command:

     # scswitch -S -h nodename

5. Replace the node-to-switch component.

   Refer to your hardware documentation for any component-specific instructions.

6. (Optional) Restore the device groups to the original node.

   Do the following for each device group that you want to return to the original node.

   • If you are using Sun Cluster 3.2, use the following command:

     # cldevicegroup switch -n nodename devicegroup1[ devicegroup2 ...]

     -n nodename

     The node to which you are restoring device groups.

     devicegroup1[ devicegroup2 …]

     The device group or groups that you are restoring to the node.

   • If you are using Sun Cluster 3.1, use the following command:

     # scswitch -z -D devicegroup -h nodename

7. (Optional) Restore the resource groups to the original node.

   Do the following for each resource group that you want to return to the original node.

   • If you are using Sun Cluster 3.2, use the following command:

     # clresourcegroup switch -n nodename resourcegroup1[ resourcegroup2 …]

     nodename

     For failover resource groups, the node to which the groups are returned. For scalable resource groups, the node list to which the groups are returned.

     resourcegroup1[ resourcegroup2 …]

     The resource group or groups that you are returning to the node or nodes.

   • If you are using Sun Cluster 3.1, use the following command:

     # scswitch -z -g resourcegroup -h nodename