Creating a DPC Node Using a New Node

This section describes how to create a DPC compute node.

Procedure

Choose Resources > Access > DPC.
Click Create DPC and select New Node.
The Create DPC page is displayed.

If no DPC node has been created in the system, clicking Create DPC directly enters the Create DPC page.

Click Batch Import Node or Manually Add Node to add nodes.

The total number of nodes imported in batches and manually added nodes cannot exceed 300. The total number of DPC nodes in the system cannot exceed 6000.

Batch Import Node
1. Click Download the template to download the template locally. Fill the information in the template, click and select the template, and then click Upload. The nodes are imported to the system in a batch.
2. Select the newly imported nodes and click Authenticate.
  On the Authentication page, select an installation mode for the nodes. Possible options are Regular installation and Pre-installation. If you select Regular installation, set Username, Password, and Password of root for authentication.
  
  Select Pre-installation when the DPC software has been pre-installed for compute nodes during the file service installation.

Manually Add Node

Set parameters for a node. Table 1 describes related parameters.

**Table 1** Node parameters
Parameter	Description
Management IP Address	Indicates the management IP address of the node.
Cabinet	Indicates the cabinet where the node resides.
Node Name	Indicates the name of the node.
Chassis	Indicates the chassis where the node resides.
Slot	Indicates the slot number where the node resides.
Node Role	Indicates the role of the node. DPC compute is automatically selected.
Firewall	Indicates whether to automatically configure the node firewall. This function is enabled by default. If the firewall is disabled, manually enable it. For details, see the Communication Matrix to ensure that all ports of compute nodes are configured with correct firewall rules.
Installation Mode	Indicates the installation mode of the node. Possible options are Regular installation and Pre-installation. If you select Regular installation, set Username, Password, and Password of root for authentication. NOTE: Select Pre-installation when the DPC software has been pre-installed for compute nodes during the file service installation.
Username	Indicates the user name used for logging in to the DPC node.
Password	Indicates the password used for logging in to the DPC node.
Password of root	Indicates the password of user root of the DPC node. NOTE: If you log in to the DPC node as a non-root user, you need to enter the password of user root.

Click OK to add the node to the list.
- You can click More on the right of a node and select Modify or Delete to modify or delete it.
- You can also select a newly added node and click Authenticate to authenticate the node again.
- You can also select the newly added node that contains the Storage role and click Set iBMC Password to configure the user name and password for authenticating the iBMC server.

Click Submit to configure the node and install the network management components.
- If the configuration fails or the network management components fail to be installed, click Restore Factory Settings to delete data.
- After the operation is successful, you can click More on the right of a node and select Log Details to view its operation logs.
Click Next.

Configure the storage network.

The Configure Storage Network page varies depending on the selected transmission protocol. Configure the storage network as prompted. Table 2 describes related parameters.

The values of Transmission Protocol, Network Flow Classification, and Multiple IP Addresses must be the same as those of the front-end storage network configured during cluster initialization.
The system allocates only the IP addresses that have been configured in the specified IP address range to nodes. The IP addresses of all nodes must be configured in advance.

**Table 2** Storage network parameters
Parameter	Description
Shared IP Address on DPC Compute Node	This parameter is mandatory when Transmission Protocol is set to RoCE and Multiple IP Addresses is set to Yes. When a DPC compute node has only one front-end storage IP address and you select Yes, the control IP address must be the same as the front-end storage IP address. NOTE: This parameter is used only when HCS Online is connected. This parameter can be configured only when a DPC compute node is added for the first time. If a DPC compute node is added later, the value of this parameter will be the same as that configured for the first time and cannot be changed.

Click Add Control IP Address Range to configure the control IP address.

Table 3 describes the parameters.

**Table 3** Control IP address configuration
Parameter	Description
IP Address Range	Indicates the IP address range of the control network. NOTE: Control IP Address Range cannot be the same as Storage IP Address Range.
Subnet Mask/Prefix	Indicates the subnet mask or prefix of the control network. NOTE: When IP addresses of the storage network are IPv4 addresses, enter the subnet mask. When IP addresses of the storage network are IPv6 addresses, enter the prefix.

You can click Add Control IP Address Range to configure multiple control IP address ranges.

IP address ranges must contain the IP addresses of all nodes in a cluster.

Click Add Storage IP Address Range to configure the storage IP address.

Table 4 describes related parameters.

**Table 4** Storage IP address configuration
Parameter	Description
IP Address Range	Indicates the IP address range of the storage network. NOTE: The start IP address and end IP address of each IP address range must be in the same network segment. The IP addresses in the specified IP address range cannot be in the same network segment as those of other ports on the node. IPv4 and IPv6 addresses are supported.
Subnet Mask/Prefix	Indicates the subnet mask or prefix of the storage network. NOTE: When IP addresses of the storage network are IPv4 addresses, enter the subnet mask. When IP addresses of the storage network are IPv6 addresses, enter the prefix.

You can click Add Storage IP Address Range to configure multiple storage IP address ranges.

IP address ranges must contain the IP addresses of all nodes in a cluster.

If storage IP addresses and control IP addresses are on different network segments, you need to configure static routes.
Click Configure Route to go to the route configuration page. For details, see Managing Route Configuration.

For details about how to query static route information, see Managing Route Configuration.

For details about how to delete a static route, see Managing Route Configuration.
Click Preview.
The system displays the storage IP address of each node and refresh the table.
- After modifying the network configurations, if you do not click Preview, you can click Reset to restore to the previous previewed network information.
- You can click More on the right of a node and select Manage Bond Port to manage bond ports of the node.
- You can click More on the right of a node and select Remove Node to remove the node.
Click Submit.
Configure a policy-based route for the front-end storage network.
Click Configure Route to go to the route configuration page. For details, see Managing Route Configuration.

For details about how to query policy-based route information, see Managing Route Configuration.

For details about how to delete a policy-based route, see Managing Route Configuration.
After the storage network is configured successfully, click Next.

Install nodes.
1. (Optional) If the installation fails, you can click Restore Factory Settings to reconfigure the nodes.
2. Click Install.
3. Click Finish.