LB Server Groups

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

To create an LB server group, follow these steps.

1. Click the All Services > Networking > Load Balancer menu to go to the Load Balancer’s Service Home page.
2. On the Service Home page, click the LB Server Group menu. You will be taken to the LB Server Group List page.
3. On the LB Server Group List page, click the Create LB Server Group button. You will be taken 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 Enter using English letters, numbers, and special characters (-_) with a length of 3 to 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 IP Hash: Distribute to a specific member based on the hash value of the client IP address
     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 that was created in the same Service Subnet as the LB server group

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

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

     Table. LB server group additional information input fields
5. Check the created service information and the estimated billing amount, and click the Create button.
   • When 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. The LB Server Group Details page consists of Details, Connected Resources, Tags, Operation History tabs.

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

1. Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.

2. On the Service Home page, click the LB server group menu. You will be taken 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 option	Detailed description
     LB server group name	Basic	LB server group resource name
     Protocol	Basic	LB server group protocol
     Load Balancer name	Basic	Load Balancer resource name linked to the LB server group
     LB Health Check ID	Basic	LB server group’s LB health check resource name
     Number of members	Basic	Number of members registered in the LB server group
     Creation date and time	Basic	LB server group creation time
     status	Basic	LB server group resource status

     Table. LB server group list items

3. On the LB server group list page, click the resource to view detailed information. It navigates to the LB server group details page.

   • LB Server Group Details At the top of the page, status information and descriptions of additional features are displayed.

     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: Cannot determine current status due to an internal error If this status persists, please contact through the Support Center Editing: Processing service modification request
     Delete LB server group	Delete LB server group resource

     Table. LB server group status information and additional feature items

Detailed Information

In the Detailed Information tab, you can view the detailed information of a resource from the LB server group list, and edit it if necessary.

Connected resources

Connected Resources tab allows you to view the list of members connected to the LB server group, and you can 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

Work 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 will handle client requests.

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

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

2. On the Service Home page, click the LB Server Group menu. You will be taken to the LB Server Group List page.

3. On the LB Server Group List page, click the resource you want to edit detailed information for. You will be taken to the LB Server Group Detail page.

4. On the LB Server Group Details page, click the Connected Resources tab. You will be taken to the Connected Resources tab page.

5. On the Connected Resources tab page, click the Add Member button in the upper right.

6. Add Member After entering the required information in the popup window, click the Confirm button.

   Category	Required status	Detailed description
   LB server group name	basic	LB server group name for adding a member
   target server	Required	Server information to add as a member Virtual Server/Bare Metal Server: Select from the list of servers created in the same VPC as the LB server group Enter IP Directly: Enter 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 to load balancing When using Weighted Round Robin or Weighted Least Connection load balancing, a value between 1 ~ 1000 is required

   Table. LB server group member addition item

7. Click the OK button in the alert dialog.

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

Member Edit

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

To edit member details, follow these steps.

1. Click the All Services > Networking > Load Balancer menu to go to the Load Balancer’s Service Home page.
2. On the Service Home page, click the LB Server Group menu. You will be taken to the LB Server Group List page.
3. On the LB Server Group List page, click the resource you want to edit details for. You will be taken to the LB Server Group Details page.
4. On the LB Server Group Details page, click the Connected Resources tab. You will be taken to the Connected Resources tab page.
5. Linked Resources tab page, click the member you want to edit. You will be taken to the Member Details page.
6. Edit the desired member information on the Member Details page.

Weight modification

It can be modified when using weighted load balancing (Weighted Round Robin, Weighted Least Connection).

• Click the Edit icon of the Weight item. In the edit window, enter the weight to edit and click the Confirm button.

Port modification

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

Activate edit

To modify member activation, click the Edit icon of the Activation item. In the edit window, set the activation status and click the Confirm button.

Delete member

To delete unused members, follow these steps.

1. Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.
2. On the Service Home page, click the LB Server Group menu. You will be taken to the LB Server Group List page.
3. On the LB Server Group List page, click the resource whose details you want to edit. You will be taken to the LB Server Group Details page.
4. On the LB Server Group Details page, click the Connected Resources tab. You will be taken to the Connected Resources tab page.
5. Linked Resources tab page, click the member you want to delete. You will be taken to the Member Details page.
6. On the Member Details page, click the Delete Member button.
7. Check whether the member has been deleted in the Connected Resources tab.

Terminate LB server group

You can terminate an unused LB server group. However, because it may affect the application service, please request termination only after thorough prior review.

To terminate the LB server group, follow these steps.

1. Click the All Services > Networking > Load Balancer menu. You will be taken to the Load Balancer’s Service Home page.
2. On the Service Home page, click the LB Server Group menu. You will be taken to the LB Server Group List page.
3. From the LB server group list, click the resource to be terminated. You will be taken to the LB server group detail page.
4. On the LB server group detail page, click the LB server group delete button.
5. Once the termination is complete, check the resource termination status in the LB server group list.