This procedure defines interconnect component as any one of the following components:
Transport adapter
Transport cable
Transport junction (switch)
You must maintain at least one cluster interconnect between the nodes of a cluster. The cluster does not function without a working cluster interconnect. You can check the status of the interconnect with the command scstat -W. For more details about checking the status of the cluster interconnect, see How to Check the Status of the Cluster Interconnect in Sun Cluster System Administration Guide for Solaris OS.
You might perform this procedure in the following scenarios:
You need to remove an unused transport adapter.
You need to remove an unused transport cable.
You need to remove an unused transport junction.
You want to migrate from a two–node cluster that uses switches to a point-to-point configuration.
For conceptual information about transport adapters, transport cables, and transport junctions, see Cluster Interconnect in Sun Cluster Concepts Guide for Solaris OS.
This procedure relies on the following prerequisites and assumptions:
If you are migrating from a two–node cluster that uses switches to a point-to-point configuration, install a crossover cable before you remove a switch.
Your cluster is operational and all nodes are powered on.
Identify the interconnect component that you want to remove. Remove that interconnect component from the cluster configuration by using the procedure in How to Remove Cluster Transport Cables, Transport Adapters, and Transport Junctions in Sun Cluster System Administration Guide for Solaris OS.
PCI-SCI interconnect requires that you remove the interconnect component from the cluster configuration because the SCI driver needs to be updated. If the SCI driver is not updated, the nodes cannot use that interconnect to communicate. Although this practice is optional for all other interconnect technology, remove the interconnect component from the cluster configuration to prevent error messages from appearing on your console.
If you plan to use virtual local area networks (VLANs) in your cluster interconnect, configure the transport junction. For more information about how configure VLANs, see Configuring VLANs as Private Interconnect Networks.
Determine if you need to shut down and power off the node that is connected to the interconnect component you are removing.
If you are removing a transport junction you, do not need to shut down and power off the node. Proceed to Step 2.
If you are removing a transport cable you, do not need to shut down and power off the node. Proceed to Step 2.
If your node has DR enabled and you are removing a transport adapter, you do not need to shut down and power off the node. Proceed to Step 2.
If your node does not have DR enabled and you are removing a transport adapter, shut down and power off the node with the transport adapter you are removing.
For the full procedure about how to shut down a node, see Chapter 3, Shutting Down and Booting a Cluster, in Sun Cluster System Administration Guide for Solaris OS.
Disconnect the interconnect component from other cluster devices.
For the procedure about how to disconnect cables from transport adapters, see the documentation that shipped with your host adapter and node.
Remove the interconnect component.
For the procedure about how to remove interconnect component, see the documentation that shipped with your host adapter, nodes, or switch.
If you shut down the node in Step 1, perform a reconfiguration boot to update the new Solaris device files and links. Otherwise, skip this step.
To reconfigure Sun Cluster software with the new interconnect component, see How to Add Cluster Transport Cables, Transport Adapters, or Transport Junctions in Sun Cluster System Administration Guide for Solaris OS.