How to Remove Host Adapters

This section contains the procedure for removing an unused host adapter from a node in a running cluster. For conceptual information on host adapters, see the Sun Cluster 3.0 12/01 Concepts document.

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. Verify that the host adapter you want to remove is not configured in the Sun Cluster software configuration.

   • If the host adapter you want to remove appears in the Sun Cluster software configuration, remove the host adapter from the Sun Cluster configuration. To remove a transport path, follow the procedures in the Sun Cluster 3.0 12/01 System Administration Guide before going to Step 2.

   • If the host adapter you want to remove does not appear in the Sun Cluster software configuration, go to Step 2.

2. Shut down the node that contains the host adapter you want to remove.

   # 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.

3. Power off the node.

   For the procedure on powering off a node, see the documentation that shipped with your node.

4. Disconnect the transport cables from the host adapter you want to remove.

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

5. Remove the host adapter.

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

6. Power on and boot the node.

   # boot -r

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