How-to guides

• 1: MariaDB(DBaaS) server connection
• 2: Managing DB Services
• 3: DB Backup and Recovery
• 4: Configuring Read Replica

1 - MariaDB(DBaaS) server connection

Scenario Overview

The MariaDB(DBaaS) server connection scenario is a scenario where a Bastion host (Virtual Server) and Database service are created, and the DB service is accessed through the Bastion host. To access MariaDB (DBaaS) stably in the Samsung Cloud Platform environment, it is necessary to create a Bastion host and network connection using it. To maintain a stable and high level of security, it is recommended to configure the Database service in a Private Subnet environment and configure the Bastion host in a limited Public Subnet environment.

This scenario largely describes the process of creating a Bastion host and Database service, and configuring the network environment for Bastion host and Database connection, to connect through a DB access client.

Scenario Components

You can configure the scenario using the following services.

Scenario composition method

To configure the scenario, create the necessary services through the following procedure.

1. Configuring the Network

This explains the process of configuring the network environment for Bastion Host and Database service connection.

1-1. Creating a VPC

1. Click All services > Networking > VPC menu. It moves to the Service Home page of VPC.
2. On the Service Home page, click the Create VPC button. It moves to the Create VPC page.
3. VPC Creation page, please enter the information required for service creation.
   • IP range should be entered as 192.168.x.0/16.
4. In the Summary panel, review the detailed information and estimated charges, then click the Complete button.
   • Once the creation is complete, check the created resource on the VPC List page.

1-2. Creating a Subnet

1. Click All services > Networking > VPC menu. It moves to the Service Home page of VPC.
2. Service Home page, click the Subnet menu. It moves to the Subnet list page.
3. Click the Subnet Creation button. It moves to the Subnet Creation page.
4. Subnet creation page where you enter the information needed to create a service.
   • Subnet type should be selected as General.
   • Please select a pre-created VPC.
   • IP range should be entered as 192.168.x.0/24.
5. In the Summary panel, review the detailed information and estimated charges, then click the Complete button.
   • After creation is complete, check the created resource on the Subnet list page.

1-3. Creating an Internet Gateway

1. Click All services > Networking > VPC menu. It moves to the Service Home page of VPC.
2. Service Home page, click the Internet Gateway menu. It moves to the Internet Gateway list page.
3. Click the Create Internet Gateway button. It moves to the Create Internet Gateway page.
4. Internet Gateway creation page, please enter the required information necessary for service creation.
   • Please select a pre-created VPC.
   • Select Use in the Firewall usage item.
5. In the Summary panel, review the detailed information and estimated charges, then click the Complete button.
   • Once the creation is complete, check the created resource on the Internet Gateway list page.

1-4. Creating a Public IP

1. Click All services > Networking > VPC menu. It moves to the Service Home page of VPC.
2. Service Home page, click the Public IP menu. It moves to the Public IP list page.
3. Public IP Reservation button, click. Move to the Public IP Reservation page.
4. Public IP Reservation page, enter the required information necessary for service reservation.
5. In the Summary panel, review the details generated and the expected charge amount, then click the Complete button.
   • Once creation is complete, check the created resource on the Public IP List page.

1-5. Creating a Security Group

1. Click All services > Networking > Security Group menu. It moves to the Service Home page of Security Group.
2. Click the Security Group Creation button on the Service Home page. It moves to the Security Group Creation page.
3. Security Group creation page, please enter the required information necessary for service creation.
4. Check the input information and click the Complete button.
   • After creation is complete, check the created resource on the Security Group list page

2. Creating a Bastion Host

This describes the process of configuring the Bastion Host where the database connection client should be installed.

2-1. Creating a Server Keypair

1. Click All Services > Compute > Virtual Server menu. It moves to the Service Home page of Virtual Server.
2. Service Home page, click the Keypair menu. It moves to the Keypair list page.
3. Create Keypair button should be clicked. It moves to the Create Keypair page.
4. Keypair creation page, please enter the required information necessary for service creation.
5. Check the creation information and click the Complete button.
   • The key can only be downloaded for the first time, and re-issuance is not provided.
   • Please keep the downloaded key in a safe place.

2-2. Creating a Bastion Host

1. Click All Services > Compute > Virtual Server menu. It moves to the Service Home page of Virtual Server.
2. Click the Virtual Server Creation button on the Service Home page. It moves to the Virtual Server Creation page.
3. Virtual Server Creation page, please enter the required information necessary for service creation.
   • The image is Windows, please select.
   • Please select a pre-created VPC and Subnet.
   • Click NAT Use and select the Public IP reserved in 1-4. Creating Public IP.
   • 2-1. Creating a server Keypair Connect the Keypair created from
4. In the Summary panel, review the details generated and the expected charge amount, then click the Complete button.
   • After creation is complete, check the created resource on the Virtual Server list page.

2-3. Check Bastion host connection ID and PW

1. Click All Services > Compute > Virtual Server menu. It moves to the Service Home page of Virtual Server.
2. Service Home page, click the Virtual Server menu. It moves to the Virtual Server list page.
3. Virtual Serve list page, click on the resource created in 2-2. Creating a Bastion host. It moves to the detailed information page of the corresponding resource.
4. Click the RDP password inquiry button in the Keypair item on the detailed information page. The RDP password inquiry popup window opens.
5. RDP password inquiry popup window, attach the keypair file downloaded from 2-1. Creating a server keypair.
6. After attaching, click the Password Check button. The ID and password required to access the resource will be displayed.
   • The ID and Password will be used as information to access the Bastion host later, as described in 5-1. Bastion host 접속하기.

3. Creating a Database

It describes the process of creating a database service.

3-1. Creating the MariaDB (DBaaS) Service

1. Click on the menu for all services > Database > MariaDB(DBaaS). It moves to the Service Home page of MariaDB(DBaaS).
2. On the Service Home page, click the Create MariaDB(DBaaS) button. It moves to the Create MariaDB(DBaaS) page.
3. MariaDB(DBaaS) creation page, please enter the required information needed for service creation.
   • Select and connect the pre-created VPC and Subnet.
   • Enter database-related creation information on the required information input screen.
   • Add the Bastion host IP to the IP access control item.
   • Database Port is 2866 by default, but you can specify it as you want.
4. In the Summary panel, review the detailed information and estimated charges, then click the Complete button.
   • Once the creation is complete, check the created resource on the MariaDB(DBaaS) list page.

4. Setting Rules

This describes the process of setting rules for users to access the Bastion host and for the Bastion host to access the Database.

4-1. Adding Security Group Security Rules

1. Click on the menu for all services > Networking > Security Group. It moves to the Service Home page of Security Group.
2. Service Home page, click the Security Group menu. Move to the Security Group list page.
3. 1-5. Creating a Security Group Select the Security Group resource created from. It will move to the detailed information page of the corresponding resource.
4. Click the Rules tab on the detailed information page. It moves to the Rules tab.
5. Click the Rule tab and click the Add Rule button. It moves to the Add Rule popup window.
6. Add Rule In the popup window, enter the rules below and click the OK button

4-2. Adding IGW Firewall Rules

1. Click All services > Networking > Firewall menu. It moves to the Service Home page of Firewall.
2. Service Home page, click the Firewall menu. It moves to the Firewall list page.
3. Firewall list page, select the Internet Gateway resource name created in 1-3. Creating Internet Gateway, and move to the detailed information page of the corresponding resource.
4. Click the Rules tab on the detailed information page. It moves to the Rules tab.
5. Rule tab, click the Add Rule button. It moves to the Add Rule popup window.
6. Add Rule In the popup window, enter the rules below and click the OK button.

5. Connecting to the Database

This describes the process of a user accessing the Database through a DB connection client program.

This guide provides instructions on how to connect using MySQL Workbench. There are various database client programs and CLI utilities, so you can also install and use the tools that are suitable for users.

5-1. Connect to Bastion host

1. Run Remote Desktop Connection in the Windows environment of the PC you want to connect to the Bastion host, enter the NAT IP of the Bastion Host, and click the Connect button.
2. After a successful remote desktop connection, the User Credential Input Window opens. Enter the ID and Password confirmed in 2-3. Checking Bastion Host Access ID and PW and click the Confirm button.

5-2. Installing DB connection client program (MySQL Workbench) on the Bastion host

1. Go to the official MySQL page and download the MySQL Workbench program.
   • MySQL Workbench program download path: https://dev.mysql.com/downloads/workbench
2. Connect the hard drive of the user’s PC to upload the file to the Bastion host.
3. Click the Details button for local devices and resources entries in the Local Resources tab of Remote Desktop Connection.
4. Select the local disk where the file was downloaded to the drive and click the Confirm button.
5. Copy the downloaded file and upload it to the Bastion Host, then click the MySQL Workbench installation file to install it.

5-3. Using DB connection client program (MySQL Workbench) to connect to the Database

1. Run MySQL Workbench and click Database > Manage connections. The Manage Server Connection popup window will appear.
2. Manage Server Connection popup window, click the New button at the bottom left and enter the database server information created in 3-1. MariaDB(DBaaS) service creation, then click the Test Connection button. A Password popup window will appear.

   Required Input Element Items	Input Value
   Connection Name	Custom (ex. Service Name)
   Host name	Database server IP
   Port	Database Port
   Username	Database user name

   DB connection client program input items
3. Password popup window, enter the password set in 3-1. MariaDB(DBaaS) service creation and click the OK button. When the success is complete, click the OK button in the Manage Server Connection popup window.
4. Database > Connect to Database를 클릭하세요. Connect to Database popup window will appear.
5. Select the Connection Name registered in Stored Connection to perform database connection. After connection, you can try simple queries, etc.

2 - Managing DB Services

Users can manage MariaDB (DBaaS) through the Samsung Cloud Platform Console.

Managing Parameters

It provides a feature to easily view and modify database configuration parameters.

Viewing Parameters

To view configuration parameters, follow these steps:

1. Click the All Services > Database > MariaDB (DBaaS) menu. You will be taken to the Service Home page of MariaDB (DBaaS).
2. Click the MariaDB (DBaaS) menu on the Service Home page. You will be taken to the MariaDB (DBaaS) List page.
3. Click the resource you want to view and modify parameters on the MariaDB (DBaaS) List page. You will be taken to the MariaDB (DBaaS) Details page.
4. Click the More button and then click the Parameter Management button. The Parameter Management popup window will open.
5. Click the View button in the Parameter Management popup window. The View Notification popup window will open.
6. When the View Notification popup window opens, click the OK button. It may take some time to view.

Modifying Parameters

To modify configuration parameters, follow these steps:

1. Click the All Services > Database > MariaDB (DBaaS) menu. You will be taken to the Service Home page of MariaDB (DBaaS).
2. Click the MariaDB (DBaaS) menu on the Service Home page. You will be taken to the MariaDB (DBaaS) List page.
3. Click the resource you want to view and modify parameters on the MariaDB (DBaaS) List page. You will be taken to the MariaDB (DBaaS) Details page.
4. Click the More button and then click the Parameter Management button. The Parameter Management popup window will open.
5. Click the View button in the Parameter Management popup window. The View Notification popup window will open.
6. When the View Notification popup window opens, click the OK button. It may take some time to view.
7. If modification is necessary, click the Modify button and enter the modification contents in the custom value area of the parameter to be modified.
8. When the input is complete, click the Save button.

Managing DB Users

It provides a management feature that allows you to view DB user information and change status information.

Viewing DB Users

To view DB users, follow these steps:

1. Click the All Services > Database > MariaDB (DBaaS) menu. You will be taken to the Service Home page of MariaDB (DBaaS).
2. Click the MariaDB (DBaaS) menu on the Service Home page. You will be taken to the MariaDB (DBaaS) List page.
3. Click the resource you want to view DB users on the MariaDB (DBaaS) List page. You will be taken to the MariaDB (DBaaS) Details page.
4. Click the More button and then click the DB User Management button. You will be taken to the DB User Management page.
5. Click the View button on the DB User Management page. It may take some time to view.

Changing DB User Status

To change the status of the viewed DB user, follow these steps:

1. Click the All Services > Database > MariaDB (DBaaS) menu. You will be taken to the Service Home page of MariaDB (DBaaS).
2. Click the MariaDB (DBaaS) menu on the Service Home page. You will be taken to the MariaDB (DBaaS) List page.
3. Click the resource you want to modify DB users on the MariaDB (DBaaS) List page. You will be taken to the MariaDB (DBaaS) Details page.
4. Click the More button and then click the DB User Management button. You will be taken to the DB User Management page.
5. Click the View button on the DB User Management page. It may take some time to view.
6. If modification is necessary, click the Modify button and change the status value or enter notes.
7. When the input is complete, click the Save button.

Managing DB Access Control

It provides an IP-based DB user access control management feature. Users can directly specify the IP that can access the database, allowing only authorized IPs to access.

Viewing DB Access Control

To view DB users with IP access control set, follow these steps:

1. Click the All Services > Database > MariaDB (DBaaS) menu. You will be taken to the Service Home page of MariaDB (DBaaS).
2. Click the MariaDB (DBaaS) menu on the Service Home page. You will be taken to the MariaDB (DBaaS) List page.
3. Click the resource you want to manage access control on the MariaDB (DBaaS) List page. You will be taken to the MariaDB (DBaaS) Details page.
4. Click the More button and then click the DB Access Control Management button. You will be taken to the DB Access Control Management page.
5. Click the View button on the DB Access Control Management page. It may take some time to view.

Adding DB Access Control

To add IP access control, follow these steps:

1. Click the All Services > Database > MariaDB (DBaaS) menu. You will be taken to the Service Home page of MariaDB (DBaaS).
2. Click the MariaDB (DBaaS) menu on the Service Home page. You will be taken to the MariaDB (DBaaS) List page.
3. Click the resource you want to add IP access control on the MariaDB (DBaaS) List page. You will be taken to the MariaDB (DBaaS) Details page.
4. Click the More button and then click the DB Access Control Management button. You will be taken to the DB Access Control Management page.
5. Click the View button on the DB Access Control Management page. It may take some time to view.
6. When the view is complete, click the Add button. The DB Access Control Add popup window will open.
7. In the DB Access Control Add popup window, select the DB user name and enter the IP address.
8. When the input is complete, click the Save button.

Deleting DB Access Control

To delete IP access control, follow these steps:

1. All Services > Database > MariaDB(DBaaS) menu, click. Move to the Service Home page of MariaDB(DBaaS).
2. On the Service Home page, click the MariaDB(DBaaS) menu. Move to the MariaDB(DBaaS) list page.
3. On the MariaDB(DBaaS) list page, click the resource for which you want to delete IP access control. Move to the MariaDB(DBaaS) details page.
4. Click the More button and then click the DB Access Control Management button. Move to the DB Access Control Management page.
5. On the DB Access Control Management page, click the Inquire button. It takes some time to inquire.
6. Once the inquiry is complete, click the Delete button. The Delete pop-up window opens.
7. In the Delete pop-up window, click the Confirm button.

Managing Archives

The Archive mode setting and Archive Log storage period setting functions are provided to allow users to flexibly set the Archive log management policy according to their operating environment. In addition, the function to manually delete Archive logs is provided together, allowing users to clean up unnecessary log data and effectively manage system resources.

Setting Archive Mode

To set the Archive mode, follow these steps:

1. All Services > Database > MariaDB(DBaaS) menu, click. Move to the Service Home page of MariaDB(DBaaS).
2. On the Service Home page, click the MariaDB(DBaaS) menu. Move to the MariaDB(DBaaS) list page.
3. On the MariaDB(DBaaS) list page, click the resource for which you want to set the Archive mode. Move to the MariaDB(DBaaS) details page.
4. Click the More button and then click the Archive Settings Management button. Move to the Archive Settings Management page.
5. On the Archive Settings Management page, click the Inquire button. It takes some time to inquire.
6. Click the Modify button and select the usage and storage period.
7. Once the modification is complete, click the Save button.

Deleting Archive Files

To delete Archive files, follow these steps:

1. All Services > Database > MariaDB(DBaaS) menu, click. Move to the Service Home page of MariaDB(DBaaS).
2. On the Service Home page, click the MariaDB(DBaaS) menu. Move to the MariaDB(DBaaS) list page.
3. On the MariaDB(DBaaS) list page, click the resource for which you want to set the Archive mode. Move to the MariaDB(DBaaS) details page.
4. Click the More button and then click the Archive Settings Management button. Move to the Archive Settings Management page.
5. On the Archive Settings Management page, click the Delete All Archives button to delete all Archive files, or click the Delete Backed-up Archives button to delete only the backed-up Archive files.

Exporting DB Logs

Supports exporting log data that requires long-term storage among audit logs to Object Storage. Users can directly set the type of log to be stored, the target bucket to be exported, and the cycle of exporting logs. According to the set criteria, logs are copied to the specified Object Storage for storage. In addition, an option to automatically delete the original log file while exporting logs to Object Storage is provided to efficiently manage disk space. By utilizing this option, users can safely store necessary log data for a long time while effectively securing storage capacity.

Setting DB Log Export Mode

To set the DB Log export mode, follow these steps:

1. All Services > Database > MariaDB(DBaaS) menu, click. Move to the Service Home page of MariaDB(DBaaS).
2. On the Service Home page, click the MariaDB(DBaaS) menu. Move to the MariaDB(DBaaS) list page.
3. On the MariaDB(DBaaS) list page, click the resource for which you want to export DB logs. Move to the MariaDB(DBaaS) details page.
4. Click the More button and then click the DB Log Export button. Move to the DB Log Export page.
5. On the DB Log Export page, click the Registration button. Move to the DB Log Export Registration page.
6. On the DB Log Export Registration page, enter the corresponding information and click the Save button.

Managing DB Log Export

To modify, cancel, or immediately export DB log export settings, follow these steps:

1. All Services > Database > MariaDB(DBaaS) menu, click. Move to the Service Home page of MariaDB(DBaaS).
2. On the Service Home page, click the MariaDB(DBaaS) menu. Move to the MariaDB(DBaaS) list page.
3. On the MariaDB(DBaaS) list page, click the resource for which you want to manage DB log export. Move to the MariaDB(DBaaS) details page.
4. Click the More button and then click the DB Log Export button. Move to the DB Log Export page.
5. On the DB Log Export page, click the More button according to the log type you want to manage, and then click the Immediate Export, Modify, or Cancel button.
   • Immediate Export: Exports the selected log to the Object Storage bucket set earlier.
   • Modify: Modifies the DB log export mode setting.
   • Cancel: Cancels the DB log export mode setting.

Upgrading DB Version

Provides a version upgrade function due to some feature improvements and security patches. Only minor version upgrades are supported within the same major version.

To upgrade the version, follow the procedure below.

1. Click the All Services > Database > MariaDB(DBaaS) menu. It moves to the Service Home page of MariaDB(DBaaS).
2. Click the MariaDB(DBaaS) menu on the Service Home page. It moves to the MariaDB(DBaaS) list page.
3. Click the resource to be upgraded on the MariaDB(DBaaS) list page. It moves to the MariaDB(DBaaS) details page.
4. Click the Modify button in the image/version item. The version upgrade popup window opens.
5. In the version upgrade popup window, select the version to be modified and the backup setting, and then click the Confirm button.
6. Click the Confirm button in the version upgrade notification popup window.

Configuring Migration

It provides a migration function that synchronizes with the operating database in real-time and replicates in a replication manner without interrupting the service.

To configure the migration, follow the procedure below.

1. Click the All Services > Database > MySQL(DBaaS) menu. It moves to the Service Home page of MySQL(DBaaS).
2. Click the MySQL(DBaaS) menu on the Service Home page. It moves to the MySQL(DBaaS) list page.
3. Click the resource to be migrated on the MySQL(DBaaS) list page. It moves to the MySQL(DBaaS) details page.
4. Click the More button to click the Configure Migration button. The Configure Migration popup window opens.
5. In the Configure Migration popup window, check the instructions and click the Confirm button. It moves to the Configure Migration page.
6. On the Configure Migration page, enter the corresponding information and click the Connect Check button.
7. When the connection is complete, click the Complete button.

The configured migration cluster can be promoted to a master cluster.

To promote the migration cluster to a master, follow the procedure below.

1. Click the All Services > Database > MySQL(DBaaS) menu. It moves to the Service Home page of MySQL(DBaaS).
2. Click the MySQL(DBaaS) menu on the Service Home page. It moves to the MySQL(DBaaS) list page.
3. Click the resource to be promoted to a master on the MySQL(DBaaS) list page. It moves to the MySQL(DBaaS) details page.
4. Click the More button to click the Promote to Master button. The Master Promotion Notification popup window opens.
5. Click the Confirm button in the Master Promotion Notification popup window.

3 - DB Backup and Recovery

The user can set up a backup of MariaDB(DBaaS) through the Samsung Cloud Platform Console and restore it with the backed-up file.

Backing up MariaDB(DBaaS)

PostgreSQL(DBaaS) provides a data backup feature based on its own backup command, and also provides an optimized backup environment for data protection and management through backup history checking and backup file deletion functions.

Setting up backup

The backup setting method of MariaDB(DBaaS) is referred to MariaDB(DBaaS) creation.

To modify the backup settings of the created resource, follow these steps.

1. All Services > Database > MariaDB(DBaaS) menu is clicked. It moves to the Service Home page of MariaDB(DBaaS).
2. Service Home page, click the MariaDB(DBaaS) menu. Move to the MariaDB(DBaaS) list page.
3. MariaDB(DBaaS) list page, click the resource to set the backup. Move to the MariaDB(DBaaS) details page.
4. Click the Edit button of the backup item. The Backup Settings popup window opens.
5. If you set up a backup, click Use in the Backup Settings popup window, select the retention period, backup start time, and Archive backup cycle, and then click the OK button.
   • If you want to stop the backup setting, uncheck Use in the Backup Setting popup window and click the OK button.

Check backup history

To check the backup history, follow these steps.

1. Click All Services > Database > MariaDB(DBaaS) menu. It moves to the Service Home page of MariaDB(DBaaS).
2. On the Service Home page, click the MariaDB(DBaaS) menu. It moves to the MariaDB(DBaaS) list page.
3. MariaDB(DBaaS) list page, click the resource to check the backup history. It moves to the MariaDB(DBaaS) details page.
4. Click the Backup History button. The Backup History popup window opens.
5. Backup History popup window where you can check the backup status, version, backup start time, backup completion time, and capacity.

Deleting backup files

To delete a backup file, follow these steps.

1. All Services > Database > MariaDB(DBaaS) menu is clicked. It moves to the Service Home page of MariaDB(DBaaS).
2. On the Service Home page, click the MariaDB(DBaaS) menu. It moves to the MariaDB(DBaaS) list page.
3. MariaDB(DBaaS) list page, click the resource to check the backup history. It moves to the MariaDB(DBaaS) details page.
4. Click the Backup History button. The Backup History popup window opens.
5. In the Backup History popup window, check the files you want to delete and click the Delete button.

Restore MariaDB(DBaaS)

In the event of a failure or data loss that requires restoration from a backup file, recovery is possible based on a specific point in time through the recovery function. When performing MariaDB (DBaaS) recovery, a new server is created with the OS image at the initial provisioning time, and the DB is installed with the version at the backup point in time, and the recovery proceeds with the DB configuration information and data.

To restore MariaDB(DBaaS), follow these procedures.

1. Click All Services > Database > MariaDB(DBaaS) menu. It moves to the Service Home page of MariaDB(DBaaS).
2. Service Home page, click the MariaDB(DBaaS) menu. Move to the MariaDB(DBaaS) list page.
3. MariaDB(DBaaS) list page, click the resource you want to restore. Move to the MariaDB(DBaaS) details page.
4. Database Recovery 버튼을 클릭하세요. Database Recovery 페이지로 이동합니다.
5. After entering information in the database recovery configuration area, click the Complete button.

4 - Configuring Read Replica

Users can create a Read Replica by entering the required information through the Samsung Cloud Platform Console and configuring detailed options.

Configuring Replica

Replica configuration allows you to create a read-only replica server. You can create up to 5 replicas per database.

To configure a replica, follow these steps:

1. Click All Services > Database > MariaDB(DBaaS). This will take you to the MariaDB(DBaaS) Service Home page.
2. Click MariaDB(DBaaS) on the Service Home page. This will take you to the MariaDB(DBaaS) list page.
3. Click the resource you want to configure a replica for on the MariaDB(DBaaS) list page. This will take you to the MariaDB(DBaaS) details page.
4. Click the Replica Configuration button. This will take you to the Replica Configuration page.
5. Enter the information in the replica configuration area and click the Complete button.

Reconfiguring Replica

If a network failure or replication delay occurs between the master cluster and the replica, you can reconfigure the replica to re-replicate the master cluster’s data.

To reconfigure a replica, follow these steps:

1. Click All Services > Database > MariaDB(DBaaS). This will take you to the MariaDB(DBaaS) Service Home page.
2. Click MariaDB(DBaaS) on the Service Home page. This will take you to the MariaDB(DBaaS) list page.
3. Click the resource you want to reconfigure a replica for on the MariaDB(DBaaS) list page. This will take you to the MariaDB(DBaaS) details page.
4. Click the Reconfigure Replica button. The Reconfigure Replica notification popup will open.
5. Click the Confirm button in the Reconfigure Replica notification popup.

Promoting Replica Cluster to Master

You can promote a configured replica cluster to a master cluster.

To promote a replica cluster to a master, follow these steps:

1. Click All Services > Database > MariaDB(DBaaS). This will take you to the MariaDB(DBaaS) Service Home page.
2. Click MariaDB(DBaaS) on the Service Home page. This will take you to the MariaDB(DBaaS) list page.
3. Click the resource you want to promote to a master on the MariaDB(DBaaS) list page. This will take you to the MariaDB(DBaaS) details page.
4. Click the More button and then click the Promote to Master button. The Promote to Master notification popup will open.
5. Click the Confirm button in the Promote to Master notification popup.