LB server group

Users can create an LB server group through the Samsung Cloud Platform Console and connect it to a Load Balancer’s Listener.

Create LB server group

Follow these steps to create an LB server group.

1. All Services > Networking > Load Balancer click the menu. 1. Navigate to the Load Balancer’s Service Home page.
2. On the Service Home page, click the LB Server Group menu. 2. Go to the LB server group list page.
3. Click the Create LB Server Group button on the LB Server Group List page. 3. Go to the Create LB Server Group page.
4. On the Create LB Server Group page, enter the information required to create a service and select detailed options.
   • Enter or select the required information in the Service Information Input area.

     Category	required status	Detailed description
     LB server group name	Required	LB server group resource name using English uppercase and lowercase letters, numbers, special characters(-_) to enter 3 ~ 63 characters LB server group name must be unique within the Account
     VPC name	Required	Select the VPC to create the LB server group Select the VPC where the Load Balancer that will connect to the LB server group is created
     Service Subnet name	Required	Select the VPC Subnet to create the LB server group Select the Subnet where the Load Balancer that will connect to the LB server group is created
     Load balancing	Required	Load Balancing Algorithm Selection Round Robin: Distribute sequentially among registered members Weighted round robin: Distribute sequentially in proportion to the weight assigned to each member Least Connection: Distribute to the member with the fewest connections Weighted least connection: Distribute to the higher‑priority member considering each member’s weight and connection count Source IP/Port Hash: Distribute to a specific member based on the client IP address and port hash value Source IP Hash: Distribute to a specific member based on the source IP address hash value
     Protocol	Required	Select the receiving protocol for the LB server group Select the protocol to forward to members of the LB server group
     LB health check	Required	Select LB health check Select an LB health check created in the Service Subnet that is the same as the LB server group

     Table. LB server group service information input fields
   • Additional Information Input in this area, enter or select the required information.

     Category	required status	Detailed description
     Explanation	Selection	Enter resource description
     tag	Selection	Add tags Up to 50 tags can be added per resource

     Table. LB server group additional information input fields
5. Review the created service information and the estimated billing amount, then click the Create button.
   • Once creation is complete, verify the created resources on the LB server group list page.

Check detailed information of LB server group

In the LB Server Group menu, you can view and edit the resource list and detailed information. LB Server Group Details page consists of Details, Connected Resources, Tags, Operation History tabs.

To view detailed information of the LB server group, follow these steps.

1. All Services > Networking > Load Balancer Click the menu. 1. Navigate to the Load Balancer’s Service Home page.

2. On the Service Home page, click the LB Server Group menu. 2. Go to the LB server group list page.

   • You can modify column visibility by clicking the Settings button at the top right of the table.

     Category	display status	Detailed description
     LB server group name	default	LB server group resource name
     Protocol	default	LB server group protocol
     Load Balancer name	default	Load Balancer resource name connected to the LB server group
     LB health check ID	default	The name of the LB health check resource used by the LB server group
     Number of members	default	Number of members registered in the LB server group
     Creation date and time	default	LB server group creation timestamp
     status	default	LB server group resource status

     Table. LB server group list items

3. LB server group list Click the resource to view its detailed information on the page. 3. Navigate to the LB Server Group Details page.

   • LB Server Group Details page displays status information and descriptions of additional features at the top.

     Category	Detailed description
     status	LB server group resource status Active: The service is active and functioning normally Deleting: Processing service termination request Creating: Processing service creation request Error: Unable to determine current status due to an internal error If this status persists, contact the Support Center Editing: Processing service modification request
     Delete LB server group	Delete LB server group resources

     Table. LB server group status information and additional feature items

Detailed Information

Detailed Information tab allows you to view detailed information of resources from the LB server group list, and modify the information if needed.

Connected resource

Connected Resources tab allows you to view the list of members connected to the LB Server Group, and add or delete members.

Tag

On the LB Server Group List page, you can view the tag information of the selected resource and add, modify, or delete it.

Job History

Job History tab allows you to view the operation history of the selected resource.

Managing LB Server Group Resources

You can view the member list of an LB server group and add or remove members.

Add member

You can add members to the LB server group to register server resources that handle client requests.

To add a member to the LB server group, follow the steps below.

1. All Services > Networking > Load Balancer Click the menu. 1. Navigate to the Load Balancer’s Service Home page.

2. On the Service Home page, click the LB Server Group menu. 2. Go to the LB server group list page.

3. On the LB server group list page, click the resource to edit its details. 3. Navigate to the LB Server Group Details page.

4. On the LB Server Group Details page, click the Connected Resources tab. 4. Go to the Connected Resources tab page.

5. On the Connected Resources tab page, click the Add Member button at the top right.

6. In the Add Member popup, after entering the required information, click the Confirm button.

   Category	required status	Detailed description
   LB server group name	default	LB server group name to add a member
   Target server	Required	Server information to add as a member Virtual Server/Bare Metal Server/Multi-Node GPU Cluster: Select from the list of resources created in the same VPC as the LB server group Enter IP directly: Enter the server IP directly Click the Add button to add the target server
   Member Information	Required	Member Port and Weight Settings Member Name: Display the server name and IP to be added as a member Port: The port the member will receive Weight: The weight applied for load balancing When using Weighted Round Robin or Weighted Least Connection load balancing, a value between 1 and 1000 must be entered

   Table. Add LB server group member item

7. Click the OK button in the alert dialog.

8. Check if members have been added in the Connected Resources tab.

Edit member

When you click a member name in the member list, you go to the Member Details page. You can view member details, and click the Edit icon to change the information.

Follow these steps to edit member details.

1. All Services > Networking > Load Balancer Click the menu. 1. Navigate to the Load Balancer’s Service Home page.
2. On the Service Home page, click the LB Server Group menu. 2. Go to the LB server group list page.
3. On the LB server group list page, click the resource you want to edit details for. 3. Navigate to the LB Server Group Details page.
4. On the LB Server Group Details page, click the Connected Resources tab. 4. Navigate to the Connected Resources tab page.
5. On the Connected Resources tab page, click the member to edit. 5. Navigate to the Member Details page.
6. Edit the desired member information on the Member Details page.

Weight modification

If you use weighted load balancing (Weighted Round Robin, Weighted Least Connection), you can modify it.

• Click the Edit icon of the Weight item. * Enter the weight to modify in the edit window and click the Confirm button.

Port modification

To edit a member port, click the Edit icon in the Port field. Enter the port to modify in the edit window and click the Confirm button.

Activate edit

To edit member activation, click the Activate Edit icon. Set the activation status in the edit window and click the Confirm button.

Delete member

To delete unused members, follow the steps below.

1. All Services > Networking > Load Balancer Click the menu. 1. Navigate to the Load Balancer’s Service Home page.
2. On the Service Home page, click the LB Server Group menu. 2. Go to the LB server group list page.
3. On the LB server group list page, click the resource to edit its details. 3. Navigate to the LB Server Group Details page.
4. On the LB Server Group Details page, click the Connected Resources tab. 4. Go to the Connected Resources tab page.
5. On the Connected Resources tab page, click the member to delete. 5. Navigate to the Member Details page.
6. On the Member Details page, click the Delete Member button.
7. Check the member deletion status in the Linked Resources tab.

Terminate LB server group

You can terminate LB server groups that are not being used. However, because it may impact the application service, please request termination only after a thorough prior review.

To cancel the LB server group, follow the steps below.

1. All Services > Networking > Load Balancer Click the menu. 1. Navigate to the Load Balancer’s Service Home page.
2. On the Service Home page, click the LB Server Group menu. 2. Go to the LB server group list page.
3. Click the resource to be terminated from the LB server group list. 3. Navigate to the LB Server Group Details page.
4. On the LB Server Group Details page, click the Delete LB Server Group button.
5. After termination is complete, check the resource termination status in the LB server group list.