Maintaining Cluster Interconnect and Public Network Hardware

The following table lists procedures for maintaining cluster interconnect and public network hardware. The interconnect maintenance procedures in this section are for both Ethernet-based and PCI-SCI interconnects.

Table 3-3 Task Map: Maintaining Cluster Interconnect and Public Network Hardware

Task	For Instructions, Go To
Add interconnect host adapters.	"How to Add Host Adapters"
Replace interconnect host adapters.	"How to Replace Host Adapters"
Remove interconnect host adapters.	"How to Remove Host Adapters"
Add transport cables and transport junctions.	"How to Add Transport Cables and Transport Junctions"
Replace transport cables and transport junctions.	"How to Replace Transport Cables and Transport Junctions"
Remove transport cables and transport junctions.	"How to Remove Transport Cables and Transport Junctions"
Add public network adapters.	"How to Add Public Network Adapters"
Replace public network adapters.	"How to Replace Public Network Adapters"
Remove public network adapters.	"How to Remove Public Network Adapters"

Maintaining Interconnect Hardware in a Running Cluster

The maintenance procedures in this section are for both Ethernet-based and PCI-SCI interconnects.

How to Add Host Adapters

This section contains the procedure for adding host adapters to nodes in a running cluster. For conceptual information on host adapters, see the Sun Cluster 3.0 12/01 Concepts document.

1. Shut down the node in which you are installing the host adapter.

   # 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. Power off the node.

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

3. Install the host adapter.

   For the procedure on installing host adapters and setting their DIP switches, see the documentation that shipped with your host adapter and node hardware.

4. 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.

Where to Go From Here

When you are finished adding 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.

How to Replace Host Adapters

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

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Caution -

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 on checking the status of the cluster interconnect, see the Sun Cluster 3.0 12/01 System Administration Guide.

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1. Shut down the node with the host adapter you want to replace.

   # 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. Power off the node.

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

3. Disconnect the transport cable from the host adapter and other devices.

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

4. Replace the host adapter.

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

5. Reconnect the transport cable to the new host adapter.

   For the procedure on connecting cables to 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.

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.

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.

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Caution -

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

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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.

How to Add Transport Cables and Transport Junctions

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

1. Shut down the node that is to be connected to the new transport cable and/or transport junction (switch).

   # 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. Install the transport cable and/or transport junction (switch).

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

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

3. 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 adding 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.

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.

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Caution -

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

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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.

How to Remove Transport Cables and Transport Junctions

This section contains the procedure for removing an unused transport cable or transport junction (switch) from a node in a running cluster.

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Caution -

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

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1. Check to see whether the transport cable and/or transport junction (switch) you want to replace appears in the Sun Cluster software configuration.

   • If the interconnect component you want to remove appears in the Sun Cluster software configuration, remove the interconnect component from the Sun Cluster configuration. To remove an interconnect component, follow the interconnect administration procedures in the Sun Cluster 3.0 System Administration Guide before going to Step 2.

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

2. Shut down the node that is connected to the transport cable and/or transport junction (switch) you are removing.

   # 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. Disconnect the transport cables 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.

4. 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.

Maintaining Public Network Hardware in a Running Cluster

How to Add Public Network Adapters

Physically adding public network adapters to a node in a cluster is no different from adding public network adapters in a non-cluster environment.

For the procedure on physically adding public network adapters, see the hardware documentation that shipped with your node and public network adapters.

Where to Go From Here

To add a new public network adapter to a NAFO group, see the Sun Cluster 3.0 12/01 System Administration Guide.

How to Replace Public Network Adapters

Physically replacing public network adapters to a node in a cluster is no different from replacing public network adapters in a non-cluster environment.

For the procedure on physically replacing public network adapters, see the hardware documentation that shipped with your node and public network adapters.

Where to Go From Here

To add the new public network adapter to a NAFO group, see the Sun Cluster 3.0 12/01 System Administration Guide.

How to Remove Public Network Adapters

Removing public network adapters from a node in a cluster is no different from removing public network adapters in a non-cluster environment. For procedures related to administering public network connections, see the Sun Cluster 3.0 12/01 System Administration Guide.

For the procedure on removing public network adapters, see the hardware documentation that shipped with your node and public network adapters.