Creating a Replication Cluster

Procedure

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

   The Create Replication Cluster wizard page is displayed.

3. Create a replication control cluster.
   • Recommended
     1. Set the name of the replication control cluster.
        

        • A replication control cluster 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 creation is successful, and then click Next.
   • Custom
     1. Set the name of the replication control cluster.
        

        • A replication control cluster 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.
          

          Disk Selection Mode can be:

          • Specify Slot: Manually enter a slot number. The value ranges from 0 to 35.
          • 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.
      Start IP Address	Indicates the start IP address of the replication network.
      Subnet Mask	Indicates the subnet mask. This parameter identifies the subnet to which an IP address belongs.
      Port	Indicates the port used by an IP address.

   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 Finish.