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 in the Samsung Cloud Platform Console.

To create EPAS (DBaaS), 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 Create EPAS (DBaaS) button. 2. Go to the EPAS(DBaaS) Create 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 EPAS (DBaaS) version list

     Table. EPAS (DBaaS) Image and version selection items
   • In the 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 (-) with a length of 3 to 13 characters A postfix such as 001, 002 is appended to the base server name to generate the actual server name
     Cluster name	required	Cluster name composed of DB servers Enter using English letters, 3 ~ 20 characters A cluster is a unit that groups multiple servers
     Service Type > Server Type	Required	Server type for DB installation Standard: Standard specification 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	Select	Status of resources with Planned Compute configured In Use: Number of resources with Planned Compute configured that are currently in use Configured: Number of resources with Planned Compute configured Coverage Preview: Amount applied per resource by Planned Compute Create Planned Compute Service: Navigate to the Planned Compute service application page For more details, refer to Planned Compute Application
     Service Type > Block Storage	Required	Block Storage settings used by the DB according to purpose Base 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, refer to Block Storage 생성하기) SSD: High‑performance general volume HDD: General volume SSD_KMS, HDD_KMS: Additional encrypted volume that uses 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 interruption due to large sorts, a separate TEMP storage must be allocated and used Add: DATA, Archive, TEMP, Backup data storage areas Use after selecting, 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 fails if capacity is insufficient For each service, Archive, TEMP, and BACKUP storages are allocated only one Block Storage each
     Redundancy configuration	Selection	Redundancy configuration status When redundancy configuration is used, the DB instance is set up as an Active DB and a Standby DB
     Network > Common Settings	Essential	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 IP can only be generated automatically The Public NAT feature is available only when the VPC is connected to an Internet Gateway. Use it by checking the box, allowing selection from reserved IPs in the VPC product’s Public IP. For more details, see Public IP 생성하기
     Network > Server-specific Settings	Required	Network settings where servers generated by the service are installed Select when you want to apply different settings for each 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. Checking Use makes it possible to select a reserved IP from the VPC product’s Public IP pool. For more details, see Public IP 생성하기.
     IP access control	Select	Service Access Policy Configuration Since the access policy is set for the IP entered on the page, a separate Security Group policy configuration is not required 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	Select	Database maintenance window If you select Use, set the day of the week, start time, and duration It is recommended to set a maintenance window for stable management of the DB. Patch operations will be performed at the scheduled time, causing service interruption If set to unused, Samsung SDS is not responsible for issues arising from unapplied patches.

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

     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 to 20 characters
     Database username	Required	Database 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 (excluding “ ‘)
     Database password verification	Essential	Re-enter the same password to use for DB access
     Database Port number	Required	Port number required for DB connection Enter DB port within the range 1200 ~ 65535
     Backup > Use	Select	Backup usage Select Use to set backup file retention period, backup start time, and Archive backup interval
     Backup > Retention Period	Select	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 minute(s) at which the backup runs is set randomly, and the backup end time cannot be set
     Backup > Archive backup cycle	Select	Archive backup interval Select the archive backup interval The archive backup interval is recommended to be 1 hour. Selecting 5 minutes, 10 minutes, or 30 minutes may affect DB performance.
     Audit Log Settings	Select	Whether to store Audit Log Select Use to configure 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 Refer to the EDB documentation for detailed information about this parameter Enabling Audit may degrade database performance
     Parameter	Essential	DB configuration parameters Click the Query button to view detailed information of the parameters Parameters can be modified after the service creation is complete, and the DB must be restarted after 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 to be used for the DB 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 for the database
     License	Required	EPAS License verification status Verification item for license usage; if you do not click Confirm, you cannot proceed to the next step

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

     Category	Required status	Detailed description
     Tag	Select	Add Tag Up to 50 per resource can be added Add Tag button, then input or select Key, Value values

     Table. EPAS (DBaaS) Additional Information Input Items

4. Check the detailed information and estimated billing amount generated in the Summary panel, and click the Create button.

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

View detailed information of EPAS (DBaaS)

The EPAS (DBaaS) service allows you to view and edit the full list of resources and detailed information. EPAS(DBaaS) Details page consists of Details, Tags, Activity History tabs, and when the DB has a Replica configured, a Replica Information tab is added.

To view detailed information about the EPAS (DBaaS) service, follow the steps below.

1. All Services > Database > EPAS(DBaaS) Click the menu. 1. Go 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 The top of the page displays status information and additional feature details.

     Category	Detailed description
     Cluster status	Cluster status with DB installed Creating: Creating cluster Editing: Cluster is changing to a state of performing an operation Error: Cluster encountered an error while performing tasks If it occurs continuously, contact the administrator Failed: Cluster failed during creation Restarting: Restarting the cluster Running: Cluster is operating normally Starting: Starting the cluster Stopped: Cluster is stopped Stopping: Cluster is in the process of stopping Synchronizing: Synchronizing the cluster Terminating: Terminating the cluster Unknown: Cluster status is unknown If it occurs continuously, contact the administrator Upgrading: Cluster is changing to a state of performing an upgrade
     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 Management Buttons Service Status Synchronization: Real-time DB service status lookup Backup History: When backup is configured, verify successful execution and view history Database Recovery: Recover the DB based on a specific point in time Parameter Management: View and modify DB configuration parameters Replica Configuration: Set up a read-only Replica cluster Replica Configuration (Other-Region): Set up a disaster recovery Replica in another region; the button is disabled if the account has no region to configure DB User Management: View and manage DB account (user) information registered in the DB DB Access Control Management: Register and revoke allowed IPs based on DB accounts registered in the DB Archive Settings Management: Configure archive file retention period and enable archive mode Export DB Log: Export stored logs to the user’s Object Storage via Audit settings Migration Configuration: Provides migration functionality using replication OS (Kernel) Upgrade: Upgrade the OS kernel version
     Service termination	Cancel service button

     Table. EPAS (DBaaS) status information and additional features

Detailed information

On the EPAS (DBaaS) List page, you can view detailed information of the selected resource and edit the information if needed.

Replica information

The Replica Information tab is enabled only when a Replica is configured in the cluster. Through the Replica Information tab, you can check the Master cluster name, number of replicas, and Replica status.

tag

EPAS (DBaaS) List page lets you view, add, modify, or delete tag information for the selected resource.

Work History

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

Managing EPAS (DBaaS) Resources

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 task on the EPAS(DBaaS) Details page.

Control operation

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

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

1. All Services > Database > EPAS(DBaaS) Click the menu. 1. Go 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. On the EPAS(DBaaS) List page, click the resource you want to control. 3. EPAS(DBaaS) Details Navigate to the 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 are 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. Go 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 for which you want to view the service status. 3. EPAS(DBaaS) Details Go to the page.
4. Service Status Synchronization Click the button. 4. While it is being queried, the cluster changes to Synchronizing state.
5. When the query completes, the status in the server information field is updated, and the cluster changes to the 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. Go 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. Go to the EPAS(DBaaS) Details page.
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 After selecting the server type in the popup window, click the Confirm button.

Add storage

If you need more than 5 TB of data storage, you can add additional storage. For a redundant DB configuration, 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. Go to EPAS(DBaaS) List page.
3. On the EPAS (DBaaS) List page, click the resource to add storage. 3. EPAS(DBaaS) Details Navigate to the page.
4. Click the Disk Add 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 size, click the Confirm button.

Expand storage

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

To expand storage capacity, follow the steps below.

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

Cancel EPAS (DBaaS)

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

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

1. All Services > Database > EPAS(DBaaS) menu, click it. 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. EPAS(DBaaS) List page, select the resource to cancel, and click the Cancel Service button.
4. After termination is complete, check on the EPAS(DBaaS) list page whether the resource has been terminated.