How-to guides

Users can create the service by entering the required information for EPAS (DBaaS) and selecting detailed options through the Samsung Cloud Platform Console.

Create EPAS (DBaaS)

You can create and use the EPAS (DBaaS) service from the Samsung Cloud Platform Console.

To create EPAS (DBaaS), follow the steps below.

1. All Services > Database > EPAS(DBaaS) Click the menu. 1. Navigate to the Service Home page of EPAS (DBaaS).

2. On the Service Home page, click the EPAS(DBaaS) Create button. 2. Go to the Create EPAS (DBaaS) page.

3. On the Create EPAS (DBaaS) page, enter the information required to create the service and select detailed options.

   • Select the required information in the Image and version selection area.

     Category	required status	Detailed description
     Image version	Required	Provide a version list of EPAS (DBaaS)

     Table. EPAS(DBaaS) Image and version selection items
   • Service Information Input area, enter or select the required information.

     Category	required status	Detailed description
     Server name Prefix	Required	Server name where the DB will be installed must start with a lowercase English letter and be entered using lowercase letters, numbers, and the special character (-) for 3 to 13 characters A postfix such as 001, 002 is appended based on the server name to generate the actual server name
     Cluster name	Required	the cluster name composed of DB servers Enter using English letters, 3 to 20 characters A cluster is a unit that groups multiple servers
     Service Type > Server Type	Required	Server type for DB installation Standard: Standard specifications commonly used High Capacity: Large-capacity server with 24 vCores or more For detailed information about the server types provided by EPAS (DBaaS), refer to EPAS(DBaaS) 서버 타입
     Service Type > Planned Compute	Selection	Status of resources with Planned Compute set In Use: Number of resources with Planned Compute that are currently in use Configured: Number of resources with Planned Compute set Coverage Preview: Amount applied per resource by Planned Compute Create Planned Compute Service: Go to the Planned Compute service application page For more information, refer to Planned Compute 신청하기
     Service Type > Block Storage	Required	Block Storage settings used by the DB according to purpose Basic OS: Area where the DB engine is installed DATA: Storage area for table data, archive files, etc. Select a storage type and then enter the capacity. (For details on each Block Storage type, see Block Storage 생성하기) SSD: High‑performance general volume HDD: General volume SSD_KMS, HDD_KMS: Additional encrypted volumes that use Samsung Cloud Platform KMS (Key Management System) encryption keys The configured storage type is applied identically to additional storage Capacity must be entered as a multiple of 8 within the range 16 to 5,120 Because executing SQL or monthly batch jobs can cause service interruptions due to large sorts, a separate TEMP storage should be allocated and used Add: Storage areas for DATA, Archive, TEMP, Backup data After selecting Use, enter the storage’s purpose and capacity The storage type is applied the same as the type set for DATA, and capacity can be entered as a multiple of 8 within the range 16 to 5,120 To add storage, click the Add button; to delete, click the x button. Up to 9 can be added Before transmitting backup data, temporarily store the backup data in the BACKUP storage If the data to be backed up exceeds 100 GB and undergoes frequent changes, it is recommended to add a separate BACKUP storage for reliable backup; the backup capacity is advised to be set at about 60 % of the DATA capacity If a BACKUP storage is not added, the /tmp area is used, and backup will fail if there is insufficient capacity For each service, Archive, TEMP, and BACKUP storages are allocated only one Block Storage each
     Redundant configuration	Selection	Redundancy configuration status When using redundancy configuration, the DB instance is set up as an Active DB and a Standby DB
     Network > Common Settings	Required	Network settings for servers created by the service Select when you want to apply the same settings to all installed servers Select a pre‑created VPC, Subnet, IP, and Public NAT Each server’s IP is generated automatically The Public NAT feature is available only when the VPC is connected to an Internet Gateway. When Use is checked, you can select from reserved IPs in the VPC product’s Public IP. For more details, refer to Public IP 생성하기
     Network > Server-specific Settings	Required	Network settings for servers created by the service Select when you want to apply different settings per installed server Select a pre‑created VPC, Subnet, IP, and Public NAT Enter the IP for each server The Public NAT feature is available only when the VPC is connected to an Internet Gateway. Use when checked, you can select a reserved IP from the VPC product’s Public IP. For more information, refer to Public IP 생성하기
     IP access control	Selection	Service Access Policy Configuration Since the access policy is set for the IP entered on the page, you do not need to configure a separate Security Group policy. Enter in IP format (example: 192.168.10.1) or CIDR format (example: 192.168.10.0/24, 192.168.10.1/32) and click the Add button. To delete an entered IP, click the x button next to the entered IP.
     Maintenance period	Selection	DB maintenance window If you select Use, you can set the day of the week, start time, and duration The maintenance window is a feature that allows the user to set the time slot for performing patch operations, and patch tasks within that period are performed directly by the user. We ask you to set the maintenance window for the stable operation of the system, and we are not responsible for any issues arising from not setting it or from failure to perform tasks within the window.

     Table. EPAS (DBaaS) Service Information Input Items
   • Enter required database configuration information In this area, enter or select the necessary information.

     Category	Required status	Detailed description
     Database name	Required	Server name applied during DB installation must start with an English letter and be entered using English letters and numbers, 3 - 20 characters
     Database username	Required	DB user name An account with the same name is also created on the OS Enter using lowercase English letters, 2 to 20 characters Restricted database user names can be viewed in the Console
     Database password	Required	Password to use when accessing the DB Enter 8 to 30 characters, including letters, numbers, and special characters (“ ‘ excluded)
     Check database password	Required	Re-enter the same password to use for DB access
     Database Port number	Required	Port number required for DB connection Enter the DB port within the range 1200 ~ 65535
     Backup > Use	Selection	Backup usage Select Use to set backup file retention period, backup start time, and Archive backup interval
     Backup > Retention Period	Selection	Backup retention period Select the backup retention period. Set the file retention period from 7 days to 35 days Backup files incur additional charges based on size
     Backup > Backup Start Period	Selection	Backup start time Select backup start time The minutes (minutes) at which the backup runs are set randomly, and the backup end time cannot be configured
     Backup > Archive backup schedule	Selection	Archive backup frequency Select the archive backup frequency The archive backup frequency is recommended to be 1 hour. Selecting 5 minutes, 10 minutes, or 30 minutes may affect DB performance.
     Audit Log Settings	Selection	Whether to store Audit Log Select Use to enable the Audit Log feature DDL, DML, SELECT, and user connection information records are stored The user can specify the types of SQL statements to audit via the edb_audit_statement parameter, and can modify it through the Parameter screen For detailed information about this parameter, refer to the EDB documentation Enabling Audit may degrade database performance
     ServiceWatch log collection	Selection	ServiceWatch log collection status Select Use to configure the ServiceWatch log collection feature Provided free up to 5 GB for all services within the Account, and charges apply based on storage size for usage exceeding 5 GB When collecting, log groups and log streams are created automatically, and they cannot be deleted until the resource is removed To prevent exceeding 5 GB, it is recommended to delete log data directly or shorten the retention period
     Parameter	required	DB configuration parameters View button can be clicked to view detailed information of the parameters Parameters can be modified after the service creation is completed, and the DB must be restarted after any modification
     Database Encoding	Required	Character encoding method to be used for the DB Character set used when storing text data The DB is created with the selected encoding as the default setting
     DB Locale	Required	Locale settings related to string handling, number/currency/date/time display formats, etc. The DB is created with the selected Locale as the default setting.
     Time zone	Required	Standard time zone used by the database
     License	Required	EPAS License verification status This is a verification item for license usage; you cannot proceed to the next step unless you click Confirm

     Table. EPAS (DBaaS) Database configuration items
   • Additional Information Input area, please enter or select the required information.

     Category	Required status	Detailed description
     tag	Selection	Add Tag Up to 50 per resource can be added Add Tag button after clicking, enter or select Key, Value values

     Table. EPAS (DBaaS) additional information input fields

4. Summary Verify the detailed information and estimated charges generated in the panel, then click the Create button.

   • When creation is complete, check the created resource on the Resource List page.

EPAS(DBaaS) Check detailed information

The EPAS (DBaaS) service allows you to view and edit the full list of resources and detailed information. On the EPAS(DBaaS) Details page, it is composed of the Details, Tags, Activity Log tabs, and for databases with a Replica configured, a Replica Information tab is added.

Follow the steps below to view detailed information about the EPAS (DBaaS) service.

1. All Services > Database > EPAS(DBaaS) Click the menu. 1. Navigate to the Service Home page of EPAS (DBaaS).
2. On the Service Home page, click the EPAS(DBaaS) menu. 2. Go to the EPAS (DBaaS) List page.
3. On the EPAS(DBaaS) List page, click the resource to view detailed information. 3. EPAS(DBaaS) Details Go to the page.
   • EPAS(DBaaS) Details At the top of the page, status information and additional feature details are displayed.

     Category	Detailed description
     Cluster status	Cluster status with DB installed Creating: Cluster is being created Editing: Cluster is transitioning to an operational state Error: Cluster is in an error state during task execution If this persists, contact the administrator Failed: Cluster is in a failed state during creation Restarting: Cluster is being restarted Running: Cluster is operating normally Starting: Cluster is being started Stopped: Cluster is in a stopped state Stopping: Cluster is in the process of stopping Synchronizing: Cluster is being synchronized Terminating: Cluster is being terminated Unknown: Cluster status is unknown If this persists, contact the administrator Upgrading: Cluster is transitioning to an upgrading state
     Cluster control	Button to change the cluster state Start: Start a stopped cluster Stop: Stop a running cluster Restart: Restart a running cluster Switch-Over: Switch a standby cluster to Active
     More features	Cluster-related management buttons Service status synchronization: Real-time DB service status lookup Backup history: When backup is configured, check whether it runs correctly and view its history Database recovery: Recover the DB based on a specific point in time Parameter management: View and modify DB configuration parameters Replica configuration: Configure a read-only cluster as a Replica Replica configuration (Other-Region): Configure a disaster-recovery Replica in another region; if the account has no region to configure, the button is disabled DB user management: View and manage DB account (user) information registered in the DB DB access control management: Based on DB accounts registered in the DB, you can register and revoke allowed IP addresses Archive settings management: Set archive file retention period and configure archive mode DB Log export: Logs stored via audit settings can be exported to the user’s Object Storage Migration configuration: Provides migration functionality using replication Block Storage usage management: Provides usage query functionality per Block Storage type OS (Kernel) upgrade: Upgrade OS Kernel version
     Service cancellation	Button to cancel the service

     Table. EPAS (DBaaS) status information and additional features

Detailed Information

You can view detailed information of the selected resource on the EPAS (DBaaS) List page and, if necessary, edit the information.

Replica information

Replica information tab is enabled only when a Replica is configured in the cluster. Replica information tab lets you check the Master cluster name, replica count, and Replica status.

tag

EPAS(DBaaS) List page allows you to view the tag information of the selected resource, and add, modify, or delete it.

Job History

EPAS (DBaaS) List page lets you view the operation history of the selected resource.

EPAS(DBaaS) Resource Management

If you need to change or restore the existing configuration options of a created EPAS (DBaaS) resource, or require a Replica configuration, you can perform the operation on the EPAS(DBaaS) Details page.

Operation Control

If changes occur to a running EPAS (DBaaS) resource, you can start, stop, or restart it. Also, when HA is configured, you can switch the Active‑Standby servers via a switch‑over.

To control the operation of EPAS (DBaaS), follow the steps below.

1. All Services > Database > EPAS(DBaaS) Click the menu. 1. Navigate to the Service Home page of EPAS (DBaaS).
2. On the Service Home page, click the EPAS(DBaaS) menu. 2. Go to the EPAS (DBaaS) List page.
3. On the EPAS(DBaaS) List page, click the resource you want to control. 3. Navigate to the EPAS(DBaaS) Details page.
4. Check the EPAS (DBaaS) status and complete the change using the control button below.
   • Start: DB service is installed on the server and the DB service is running (Running).
   • Stop: The server where the DB service is installed and the DB service will be stopped (Stopped).
   • Restart: Only the DB service will be restarted.
   • Switch Over: You can switch the DB’s Active server and Standby server.

Synchronize service status

You can synchronize the real-time service status of EPAS (DBaaS).

To check the service status of EPAS (DBaaS), follow the steps below.

1. All Services > Database > EPAS(DBaaS) Click the menu. 1. Navigate to the Service Home page of EPAS (DBaaS).
2. On the Service Home page, click the EPAS(DBaaS) menu. 2. EPAS (DBaaS) List Navigate to the page.
3. On the EPAS(DBaaS) List page, click the resource to view its service status. 3. Go to the EPAS(DBaaS) Details page.
4. Click the Service Status Synchronization button. 4. While it is being queried, the cluster changes to Synchronizing state.
5. When the query completes, the status in the server information item is updated, and the cluster changes to Running state.

Change Server Type

You can change the configured server type.

To change the server type, follow these steps.

1. All Services > Database > EPAS(DBaaS) Click the menu. 1. Navigate to the Service Home page of EPAS (DBaaS).
2. On the Service Home page, click the EPAS(DBaaS) menu. 2. Navigate to the EPAS(DBaaS) List page.
3. EPAS(DBaaS) List page, click the resource whose server type you want to change. 3. EPAS(DBaaS) Details page is accessed.
4. Click the Edit icon of the server type you want to change at the bottom of the detailed information. 4. Edit Server Type The popup window opens.
5. Edit Server Type In the popup window, after selecting the server type, click the Confirm button.

Add storage

If you need more than 5 TB of data storage, you can add additional storage. In a redundant DB setup, all redundant servers are added simultaneously.

To add storage, follow these steps.

1. All Services > Database > EPAS(DBaaS) Click the menu. 1. Navigate to the Service Home page of EPAS (DBaaS).
2. On the Service Home page, click the EPAS(DBaaS) menu. 2. EPAS (DBaaS) List Navigate to the page.
3. EPAS(DBaaS) List Click the resource to add storage on the page. 3. EPAS(DBaaS) Details Go to the page.
4. Click the Add Disk button at the bottom of the detailed information. 4. Additional Storage Request The popup window opens.
5. Additional Storage Request In the popup window, after entering the purpose and capacity, click the Confirm button.

Expanding Storage

Storage added to the data area can be expanded up to a maximum of 5 TB based on the initially allocated capacity. In a redundant DB setup, all redundant servers are expanded simultaneously.

To increase storage capacity, follow the steps below.

1. All Services > Database > EPAS(DBaaS) Click the menu. 1. Navigate to the Service Home page of EPAS (DBaaS).
2. On the Service Home page, click the EPAS(DBaaS) menu. 2. EPAS (DBaaS) List Navigate to the page.
3. EPAS(DBaaS) List Click the resource on the page for which you want to change the server type. 3. EPAS(DBaaS) Details Go to the page.
4. Click the Edit icon of the additional Disk you want to expand at the bottom of the detailed information. 4. Edit Additional Storage popup opens.
5. Edit Additional Storage In the popup window, after entering the expansion capacity, click the Confirm button.

EPAS(DBaaS) Terminate

You can cancel unused EPAS (DBaaS) to reduce operating costs. However, if you terminate the service, the running service may be discontinued immediately, so you should proceed with the termination only after fully considering the impact of the service interruption.

To cancel EPAS (DBaaS), follow the steps below.

1. All Services > Database > EPAS(DBaaS) Click the menu. 1. Navigate to the Service Home page of EPAS (DBaaS).
2. On the Service Home page, click the EPAS(DBaaS) menu. 2. EPAS(DBaaS) List page is accessed.
3. Select the resource to terminate on the EPAS (DBaaS) List page, and click the Terminate Service button.
4. Once the termination is complete, check the EPAS(DBaaS) list page to confirm that the resource has been terminated.