Creating a Global Zone

This section describes how to create a Global zone to process metadata requests.

Context

Only one Global zone can be created for each subnet.

Procedure

  1. Choose Resources > Access > Service Network > General.
  2. Select the desired subnet from the Subnet drop-down list.
  3. Click Create Global Zone.

    The Create Zone page is displayed.

  4. Configure basic zone information.

    Table 1 describes related parameters.

    Table 1 Basic zone parameters

    Parameter

    Description

    Sub-domain Name

    Indicates the sub-domain name of the zone. This function must be used together with the DNS function in the subnet.

    Network Type

    Indicates the network type of ports in the zone. After this parameter is specified, only ports of the specified network type can be added to the port pool. It is recommended that a subnet contain zones of only one network type.

    DNS Policy

    Indicates the DNS policy of the zone. Possible options are as follows:

    • Round robin

      If clients access services using domain names, nodes are selected to process service requests of clients based on the sequence recorded in the cache.

    • Node connections

      If clients access services using domains names, nodes with the fewest connections are selected to process service requests of clients.

    • CPU usage

      If clients access services using domains names, nodes with the lowest CPU usage are selected to process service requests of clients.

    • Node throughput

      If clients access services using domains names, nodes with the lowest throughput are selected to process service requests of clients.

    DNS Service

    Indicates whether to enable the DNS service to resolve the sub-domain name of the Global zone.

    After enabling DNS for the subnet, setting a sub-domain name for the Global zone, and enabling DNS for the Global zone, services of the Global zone can be accessed through the sub-domain name.

    You are not advised to enable IP Address Failover for the Global zone. You can configure this function on the CLI as required.

  5. Click Next.
  6. Configure the IP address pool.

    • Adding an IP address
      1. Click Add.

        The Add IP Address page is displayed.

      2. Configure IP address information.

        Table 2 describes related parameters.

        Table 2 IP address parameters

        Parameter

        Description

        Type

        Indicates the IP address adding type. The value can be Single Address or Address Segment.

        IP Address/Mask

        The value is the planned service IP address and subnet mask when Type is set to Single Address.

        Start IP Address/Mask

        The value is the planned start service IP address and subnet mask when Type is set to Address Segment.

        End IP Address/Mask

        The value is the planned end service IP address and subnet mask when Type is set to Address Segment.

      3. Click OK.
    • Modifying an IP address
      1. Click More on the right of the desired IP address and select Modify.

        The Modify IP Address page is displayed.

      2. Modify the IP address information. Table 2 describes related parameters.
      3. Click OK.
    • Removing an IP address
      Select one or more desired IP addresses and click Remove.

      You can also click More on the right of a desired IP address and select Remove.

  7. Click Next.
  8. Configure the port pool.

    1. Click Add.

      The Add Port page is displayed.

    2. Select the ports to be added.

      You are advised to select bond ports.

    3. (Optional) Manage bond ports.
      1. Click Manage Service Bond Port.

        The Manage Service Bond Port page is displayed.

      2. Click Add.

        The Create Bond Port page is displayed.

      3. Configure the port information. Table 3 describes related parameters.
        Table 3 Port parameters

        Parameter

        Description

        Bond Port Name

        Indicates the name of the bond port.

        Transmission Protocol

        Indicates the transmission protocol of the bond port. Possible options are TCP and IB.

        Physical Port

        Indicates the physical port to be bound.

        Bond Mode

        Indicates the bond mode.

        When Transmission Protocol is set to TCP, bond1 and bond4 are supported.

        When Transmission Protocol is set to IB, only bond1 is supported.

        • bond1: active/standby mode
        • bond4: dynamic link aggregation mode
        NOTE:

        bond4 is recommended.

        MTU (Bytes)

        Indicates the maximum transmission unit of the bond port.

      4. Click OK.
      5. Click Close.
    4. Click OK.

  9. Click OK.