Adding a system to a VCS cluster

Perform the following steps to add a system to a Cluster Server (VCS) cluster by using the VCS Cluster Configuration wizard.

The system from where you launch the wizard must be part of the cluster to which you want to add a new system.

To add a system to a VCS cluster

  1. Access the Veritas High Availability view (for any system belonging to the required cluster).

    See Launching the VCS Cluster Configuration wizard.

  2. Click Actions > Add System to VCS Cluster.

    The VCS Cluster Configuration Wizard is launched.

  3. Review the information on the Welcome panel and click Next.

    The Configuration Inputs panel appears, along with the cluster name, and a table of existing cluster systems.

  4. To add a system to the cluster, click Add System.
  5. In the Add System dialog box, specify the following details for the system that you want to add to the VCS cluster and click OK.

    System Name or IP address

    Specify the name or IP address of the system that you want to add to the VCS cluster.

    User name

    Specify the user account for the system.

    Typically, this is the root user. The root user should have the necessary privileges.

    Password

    Specify the password for the user account you specified.

    Use the specified user account on all systems

    Select this check box to use the specified user account on all the cluster systems that have the same user name and password.

  6. On the Configuration Inputs panel, do one of the following actions:
    • To add another system to the cluster, click Add System and repeat step 4.

    • To modify the User name or Password for a cluster system, use the edit icon.

    • Click Next

  7. On the Network Details panel, specify the adapters for network communication (Low Latency Transport or LLT module of VCS) for the system. The wizard configures the VCS cluster communication links using these adapters. You must select a minimum of two adapters.

    Note:

    You cannot modify the existing type of cluster communication (LLT over Ethernet or LLT over UDP).

    • If the existing cluster uses LLT over Ethernet, select the adapter for each network communication link. You must select a different network adapter for each communication link.

    • If the existing cluster uses LLT over UDP, select the type of IP protocol (IPv4 or IPv6), and then specify the required details for each communication link.

      Network Adapter

      Select a network adapter for the communication links.

      You must select a different network adapter for each communication link.

      IP Address

      Displays the IP address.

      Port

      Specify a unique port number for each link.

      For IPv4 and IPv6, the port range is from 49152 to 65535.

      A specified port for a link is used for all the cluster systems on that link.

      Subnet mask (IPv4)

      Displays the subnet mask details.

      Prefix (IPv6)

      Displays the prefix details.

    By default, one of the links is configured as a low-priority link on a public network interface. The other link is configured as a high-priority link.

    To change a high-priority link to a low-priority link, click Modify. In the Modify low-priority link dialog box, select the link and click OK.

    Note:

    Veritas recommends that you configure one of the links on a public network interface. You can assign the link on the public network interface as a low-priority link for minimal VCS cluster communication over the link.

  8. On the Configuration Summary panel, review the VCS Cluster Configuration Details.
  9. On the Implementation panel, the wizard creates the VCS cluster.

    The wizard displays the status of the configuration task. After the configuration is complete, click Next.

    If the configuration task fails, click Diagnostic information to check the details of the failure. Rectify the cause of the failure and run the wizard again to add the required system to the VCS cluster.

  10. On the Finish panel, click Finish to complete the wizard workflow.