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Chapter 10

Adding a Node to a Cluster Created by the SMCT

For information about how to add a node to a cluster created by the SMCT, see the following sections.

Adding a Predefined Diskless Node to a Cluster Created by the SMCT

ProcedureTo Add a Predefined Diskless Node to a Cluster Created by the SMCT

  1. Log in to a peer node as a superuser.

  2. Determine what nodes are currently running in the cluster:

    # nhcmmstat -c all

    The nhcmmstat tool returns information about the nodes currently running in the cluster. This command does not provide information about nodes that are physically present in the cluster, but are down.

  3. Identify the node group and nodeid of the node that you want to add.

    Examine the cluster.conf file. The predefined node is present in the cluster.conf file, but not present in the output of Step 2.

  4. Verify that the configuration of the node that you want to add corresponds to that of the predefined node.

    Examine the machine.conf file to identify the type of board and network interface card for the predefined node:

  5. Connect the network interfaces (NIC0 and NIC1) of the new node to the switches.

    For information, see "Connecting the Cluster Hardware for SMCT Installation" in the Netra High Availability Suite Foundation Services 2.1 6/03 Hardware Guide.

  6. Access the console of the new node and obtain the ok prompt:

    # Control-]
    telnet> send brk
    Type  'go' to resume
    ok>

  7. On the console of the new node, configure the OBP parameters:

    ok> setenv local-mac-address ? true
    ok> setenv auto-boot-retry? true
    ok> setenv diag-switch? false
    ok> setenv boot-device net:dhcp,,,,,5 net2:dhcp,,,,,5

    If the boot policy set in the cluster.conf file is STATIC_CLIENT_ID_POLICY, specify the client-ID. See To Configure DHCP Client ID Boot Policy for a Diskless Node.

    ok> setenv dhcp-clientid client-ID

  8. Boot the new node:

    ok> boot

  9. Become superuser on the new node.

  10. Verify that the node is configured correctly:

    # nhadm check

Adding a Predefined Dataless Node to a Cluster Created by the SMCT

ProcedureTo Add a Predefined Dataless Node to a Cluster Created by the SMCT

  1. Log in to a peer node as superuser.

  2. Determine what nodes are currently running in the cluster:

    # nhcmmstat -c all

    The nhcmmstat tool returns information about the nodes currently running in the cluster. This command does not provide information about nodes that are physically present in the cluster, but are down.

  3. Identify the node group and nodeid of the node that you want to add.

    Examine the cluster.conf file. The predefined node is present in the cluster.conf file, but not present in the output of Step 2.

  4. Verify that the configuration of the node that you want to add corresponds to that of the predefined node.

    Examine the machine.conf file to identify the type of board, disk, and network interface card for the predefined node.

  5. Configure the OBP parameters:
    ok> setenv local-mac-address ? true
    ok> setenv auto-boot-retry? true
    ok> setenv diag-switch? false 

  6. Verify that the installation server and the new node are on the same subnet and use the same netmask.

    1. Identify the network identity and netmask identity for the new node by examining the network.conf file.

    2. Identify the network identity and netmask identity for the installation server by examining the install-server.conf file.

    3. Compare the values found in Step a with those found in Step c.

    4. Confirm that the hardware is correctly configured.

      For information, see the Netra High Availability Suite Foundation Services 2.1 6/03 Hardware Guide.

  7. Check that the flash archive of the associated node group exists, and do one of the following:

  8. Connect the two Ethernet interfaces (NIC0 and NIC1) of the node to the switches.

    For information, see the Netra High Availability Suite Foundation Services 2.1 6/03 Hardware Guide.

  9. Access the console of the new node and obtain the ok prompt:

    # Control-]
    telnet> send brk
    Type  'go' to resume
    ok>

  10. On the console of the new node, install the flash archive:

    ok> boot net - install

  11. Become superuser on the new node.

  12. Verify that the node is configured correctly:

    # nhadm check

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