4.2 Adding New OES Nodes to Your NetWare Cluster

You can add new OES cluster nodes to your existing NetWare cluster without bringing down the cluster.

  1. Before you add the first Linux node to the NetWare cluster, if the NetWare cluster uses an SBD, ensure that the device (or devices) being used by the SBD are marked as Shareable for Clustering.

    You can use NSSMU or iManager to mark the SBD devices as shareable. It is not necessary to bring the cluster down when changing the device attribute to Shareable for Clustering.

    Using NSSMU:

    1. Log in to the master node of the NetWare cluster as the administrator user.

    2. Enter nssmu at the server console prompt.

    3. In the NSSMU main menu, select Devices.

    4. In the Devices list, highlight the device that contains the SBD partition, then press F5 to select it.

    5. Press F6 to mark the device as Shareable for Clustering.

    6. If the SBD partition is mirrored, repeat Step 1.d and Step 1.e to also mark the mirror device as Shareable for Clustering.

    7. Press Esc to exit NSSMU.

  2. Install OES on the new node, but do not install the Novell Cluster Services option from OES Services at this time.

    See the OES 11 SP2: Installation Guide for more information.

  3. Set up and verify SAN connectivity for the new OES node.

    Consult your SAN vendor documentation for SAN setup and connectivity instructions.

  4. Install Novell Cluster Services on the OES node.

  5. After the install, add the server to the NetWare cluster:

    For detailed instructions, see Adding a Node to an Existing Cluster in the OES 11 SP2: Novell Cluster Services for Linux Administration Guide.

    1. Log in to the OES server as the root user.

    2. In YaST, select Open Enterprise Server > OES Install and Configuration.

    3. On the Software Selection page under OES Services, verify that Novell Cluster Services is selected, then click Accept to continue to the configuration.

      Services that you have already installed are indicated by a blue check mark in the status check box next to the service.

    4. On the Software Configuration page, enable Novell Cluster Services configuration, then click the Novell Cluster Services link.

    5. When you are prompted, enter the credentials of the LDAP administrator that is configured for the server.

    6. On the Novell Cluster Services Configuration page, add the server to the existing NetWare cluster, then click Next.

      Parameter

      Action

      New or Existing Cluster

      Select Existing Cluster.

      Cluster FDN

      Browse to select the Cluster object for the NetWare cluster, or type the cluster fully distinguished name.

      For example:

      cn=nwcluster,ou=clusters,o=mycompany

    7. On the Proxy User Configuration page, specify one of the following users as the NCS Proxy user, then click Next.

      • OES Common Proxy User: If the OES Common Proxy User is enabled in eDirectory, the Use OES Common Proxy User check box is automatically selected and the NCS Proxy User Name and Specify NCS Proxy User Password fields are populated with the credentials of the OES Common Proxy User.

      • LDAP Admin User: If the OES Common Proxy User is disabled in eDirectory, the Use OES Common Proxy User check box is automatically deselected and the NCS Proxy User Name and Specify NCS Proxy User Password fields are populated with the credentials of the LDAP Admin user. The fields are also automatically populated with the LDAP Admin credentials if you deselect the Use OES Common Proxy User check box.

      • Another Administrator User: Deselect the Use OES Common Proxy User check box, then specify the credentials of an administrator user.

      You can reset the default settings by clicking Back to return to the Novell Cluster Services Configuration page, then clicking Next to continue again to the Proxy User Configuration page.

    8. On the Configuration page, specify the following parameters, then click Finish.

      Parameter

      Action

      IP address of this node

      If the server has multiple network adapters, select the IP address that Novell Cluster Services will use for this node.

      Start Cluster Services now

      Deselect the check box. You will start Novell Cluster Services software on this node manually for the conversion process.

    9. On the OES Server Configuration page, scroll down to the Novell Cluster Services entry to review the summary of the Cluster Services configuration, then click Next.

      Wait while Novell Cluster Services is configured.

    10. After the configuration is completed, click Finish to exit the OES Configuration page, then exit YaST.

  6. If you have a shared disk system on the cluster, enter sbdutil -f at the Linux terminal console to verify that the node can see the cluster (SBD) partition on the SAN.

    sbdutil -f will also tell you the device on the SAN where the SBD partition is located.

  7. Start cluster software by going to the /etc/init.d directory and running novell-ncs start.

    You must be logged in as root to run novell-ncs start.

  8. Add and assign cluster resources to the new Linux cluster node.

    See Configuring Preferred Nodes and Node Failover Order for a Resource in the OES 11 SP2: Novell Cluster Services for Linux Administration Guide.

  9. After you have added OES nodes and cluster migrated all resources to OES nodes, continue with Section 4.3, Removing NetWare Nodes from the Cluster.