Cluster Management allows you to create and diagnosis clusters.

When using Cluster Management from the web client, performing operations against other members of the cluster will incur a Cross-Origin Resource Sharing (CORS) HTTP request. This may require you to change the Trusted Servers, CORS, and Redirects setting to allow the specific host name being used in your web browser.

  • Navigate to Cluster > Cluster Management.

    Cluster Management grid

    • Health indicators: Health indicators display in the first column in the Cluster Management grid. Cluster members periodically query other appliances in the cluster to obtain their health information. Cluster member information and health information is cached in memory, with the most recent results displayed.

      The health indicators on the nodes indicate if cluster members are in any of these states:

      error: Indicates a definite problem impacting the functionality of the cluster

      warning: Indicates a potential issue with the cluster

      locked: Indicates the cluster is locked

      (green) healthy state.

      Expand the View More section to see more details.

    • Name: The name of the appliance.
    • Network Address: The IPv4 address (or IPv6 address) of the appliance configuration interface. You can modify the appliance IP address. For more information, see How do I modify the appliance configuration settings..
    • Primary: Displays Yes if the appliance is the primary.
    • Appliance State: Indicates the appliance state. For a list of available states, see Appliance states.

    When you select an appliance, the details for the appliance display on the right. The grid information displays: name, network address, primary, and state. This additional information is available:

    • Disk Space: The amount of used and free disk space.
    • Version: The appliance version number.
    • Last Health Check: Last date and time the selected appliance's information was obtained.
    • Uptime: The amount of time (days, hours, and minutes) the appliance has been running.
    • If the replica is selected, this additional information displays for the Primary:
      • Network Address: The network DNS name or the IP address of the primary appliance in the cluster

      • MAC Address: The media access control address (MAC address), a unique identifier assigned to the network interface for communications

      • Link Present: Displays either Yes or No to indicate if there is an open communication link

      • Link Latency: The amount of time (in milliseconds) it takes for the primary to communicate with the replica. Network latency is an expression of how much time it takes for a packet of data to get from one designated point to another. Ideally, latency is as close to zero as possible.

    • Errors and warnings are reported:

      • Errors: Errors are reported. For example, if an appliance is disconnected from the primary (no quorum), an error message may be: Request Workflow: Cluster configuration database health could not be determined.

      • Warnings: Warnings are reported. For example, if an appliance is disconnected from the primary (no quorum), a warning message may be: Policy Data: There is a problem replicating policy data. Details: Policy database slave IO is not running. The Safeguard primary may be inaccessible from this appliance.

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