This procedure defines interconnect component as any one of the following components:
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 replace a failed transport adapter.
You need to replace a failed transport cable.
You need to replace a failed transport junction.
For conceptual information about transport adapters, transport cables, and transport junction, see Cluster Interconnect in Sun Cluster Concepts Guide for Solaris OS.
This procedure relies on the following prerequisites and assumptions.
Install a temporary crossover cable before you remove a transport junction. This temporary crossover cable eliminates the single point of failure that exists when you remove a transport junction.
Your cluster is operational and all nodes are powered on.
Identify the interconnect component that you want to replace. 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 Virtual Local Area Networks (VLANs) are configured, more than one cluster might be impacted by removing a transport junction. Ensure that all clusters are prepared for the removal of a transport junction. Also, record the configuration information of the transport junction you plan to replace and configure the new transport junction accordingly.
For more information about how to 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 replacing.
If you are replacing a transport junction, you do not need to shut down and power off the node. Proceed to Step 2.
If you are replacing 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 replacing 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 replacing a transport adapter, shut down and power off the node with the transport adapter you are replacing.
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 failed 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.
Connect the new interconnect component to other cluster devices.
If you are replacing an Ethernet or InfiniBand interconnect, see How to Install Ethernet or InfiniBand Transport Cables and Transport Junctions for cabling diagrams and considerations.
If you are replacing a PCI-SCI interconnect, see SPARC: How to Install PCI-SCI Transport Cables and Transport Junction for cabling diagrams and considerations.
If your interconnect uses jumbo frames, review the requirements in SPARC: Requirements When Using Jumbo Frames and see the Sun GigaSwift documentation for instructions. Refer to ce Sun Ethernet Driver Considerations for details of how to edit the ce.conf file according to the GigaSwift documentation's instructions.
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.