How to Replace Transport Cables and Transport Junctions

This section contains the procedure for replacing failed transport cables and/or transport junctions (switches) in a running cluster.

You must maintain at least one cluster interconnect between the nodes of a cluster. The cluster does not function without a working cluster interconnect.

1. Shut down the node that is connected to the transport cable or transport junction (switch) you are replacing.

   # scswitch -S -h nodename # shutdown -y -g0 -i0

   For the procedure on shutting down a node, see the Sun Cluster 3.0 12/01 System Administration Guide.

2. Disconnect the failed transport cable and/or transport junction (switch) from the other cluster devices.

   For the procedure on disconnecting cables from host adapters, see the documentation that shipped with your host adapter and node.

3. Connect the new transport cable and/or transport junction (switch) to the other cluster devices.

   • If you are replacing an Ethernet-based interconnect, see "How to Install Ethernet-Based Transport Cables and Transport Junctions" for cabling diagrams and considerations.

   • If you are replacing a PCI-SCI interconnect, see "How to Install PCI-SCI Transport Cables and Switches" for cabling diagrams and considerations.

4. Boot the node that you shut down in Step 1.

   # boot -r

   For the procedure on booting a node, see the Sun Cluster 3.0 12/01 System Administration Guide.

Where to Go From Here

When you are finished replacing all of your interconnect hardware, if you want to reconfigure Sun Cluster with the new interconnect components, see the Sun Cluster 3.0 12/01 System Administration Guide for instructions on administering the cluster interconnect.