Creating a Replication Cluster

Procedure

1. Choose Data Protection > Configuration > Replication Cluster.
2. Click Create.

   The Create Replication Cluster wizard page is displayed.

3. Create a replication control cluster.
   • Recommended
     

     You can select Recommended only when you create a replication cluster for the first time.

     1. Set the cluster name.
        

        • The name contains 1 to 31 characters.
        • A replication control cluster name contains only letters, digits, underscores (_), and hyphens (-).
     2. In the Selected Node area, view node configurations.
     3. Click Submit.
     4. Wait until the configuration is successful, and then click Next.
   • Custom
     1. Set the name of the replication control cluster.
        

        • The name contains 1 to 31 characters.
        • A replication control cluster name contains only letters, digits, underscores (_), and hyphens (-).
     2. In Metadata Storage Location, select the location to store the metadata.
        • If you select Physical disk, specify Disk Type and Disk Selection Mode.
          

          Possible options are SAS, SATA, SSD card&NVMe SSD, SSD, and M.2 SSD. If SSD card&NVMe SSD or M.2 SSD is selected, you cannot select Specify Slot.

          Disk Selection Mode can be:

          • Specify Slot: Manually enter a slot number. A slot number ranges from 0 to 60.
          • Manually Select: Manually select disks for each node.
        • If you select System disk partition, the system stores metadata in the /opt/ccdb_disk2 partition of the system disks.
     3. Select the nodes to create the replication control cluster.
        • If Metadata Storage Location is set to Physical disk, select the nodes and disks for creating the replication control cluster from Available Nodes.
        • If Metadata Storage Location is set to System disk partition, select the nodes for creating the replication control cluster from Available Nodes.
     4. Click Submit.
     5. Wait until the configuration is successful, and then click Next.

4. Create a replication service cluster.
   1. Select the nodes to create the replication service cluster.
   2. Click Submit.
   3. Wait until the creation is successful, and then click Next.

5. Configure the network.
   1. Configure network information for replication nodes. Table 1 describes related parameters.

      Table 1 Replication node network parameters

      Parameter	Description
      Transmission Protocol	Indicates the transmission protocol used by the replication network.
      IP Address Range	Indicates the IP address range of the replication network. NOTE: Plan the IP address properly to ensure that the replication IP address is different from other IP addresses.
      Subnet Mask/Prefix	When an IPv4 address is used, this parameter indicates the subnet mask of the replication IPv4 address and identifies the subnet to which the IP address belongs.
      Port	Indicates the port number of the replication network.

   2. Click Preview.
   3. Click Submit.
   4. Wait until the creation is successful, and then click Next.

6. Authenticate the cluster.
   Table 2 describes related parameters.

   Table 2 Cluster authentication parameters

   Parameter	Description
   Pre-Shared Key Label	Identifies the pre-shared key of a cluster. [Value range] A pre-shared key label contains 5 to 32 characters. A pre-shared key label can contain only letters, digits, and underscores (_), and must start with a letter.
   Pre-Shared Key	Implements identity authentication. This parameter functions together with Pre-Shared Key Label. [Value range] A pre-shared key contains 8 to 31 characters. A pre-shared must contain special characters (excluding <>' &") and any two types of the following characters: uppercase letters, lowercase letters, and digits.
   Confirm Pre-Shared Key	Confirms the pre-shared key.

7. Click Submit.
8. (Optional) Click Add Remote Device in the lower left corner to add a remote device for the created replication cluster. For details, see Adding a Remote Device.
9. Click Close.