Service Overview

EPAS(DBaaS) is a relational database management system (RDBMS) with high compatibility with Oracle databases. Samsung Cloud Platform provides an environment that can automate EPAS installation and perform management functions for operation through a web-based Console.

EPAS (DBaaS) is designed as a high‑availability architecture that performs storage‑based data replication and minimizes failover time. To prevent data loss, when the contents of the Active server change, they are synchronously replicated to the Standby server, and up to five read‑only Replica servers for read load balancing and disaster recovery (DR) are provided. Additionally, to prepare for potential issues with the DB server or data, we provide an automatic backup feature at user-specified times, enabling data recovery at the desired point in time.

Provided features

EPAS(DBaaS) provides the following features.

• Auto Provisioning: It allows installation and configuration of Database (DB) through the UI, and provides an Active‑standby redundancy configuration built on storage replication. * When the active server fails, it automatically fails over to standby.
• Operation Control Management: Provides a function to control the status of running servers. * In addition to start and stop, a restart is possible if there is a DB issue or to apply configuration changes. * When high availability (HA) is configured, a node transition between Active-Standby can be performed directly by the user through a switch-over.
• Backup and Recovery: Provides data backup functionality based on its own backup commands. * Backup time windows and storage locations can be configured by the user, and additional fees may apply based on the backup size. * It also provides a recovery feature for backed‑up data; when the user initiates a recovery, a separate database is created, and the recovery proceeds to the point in time selected by the user (the backup creation time or a user‑specified time). * When restoring to a user-specified point in time, the restore point can be set up to 5 minutes, 10 minutes, 30 minutes, or 1 hour prior to the stored backup and archive files.
• Version Management: Provides Minor version upgrade functionality based on some feature improvements and security patches. * Whether to perform a backup for a version upgrade can be selected by the user, and if a backup is performed, the data is backed up before applying the patch, after which the DB engine is updated.
• Replica configuration: Up to five Read Replicas can be configured in the same or different regions for read load balancing and disaster recovery (DR).
• Audit configuration: Provides an Audit configuration feature that can monitor users’ DB access and the results of DDL (Data Definition Language)/DML (Data Manipulation Language) operations.
• Parameter Management: Performance improvement and security-related DB configuration parameters can be modified.
• Service Status Query: Retrieves the final status of the current DB service.
• Monitoring: CPU, memory, performance monitoring information can be viewed through Cloud Monitoring and Servicewatch.
• DB User Management: View and manage the 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 IPs for access.
• Archive Management: You can set the Archive file retention period (1~35 days) on the DB server and configure the Archive mode (On/Off).
• DB Log Export: You can export stored logs to the user’s Object Storage via Audit settings.
• Migration: Synchronizes data in real time with the operational database and supports migration using replication without service interruption.
• OS Kernel Upgrade: You can upgrade the OS Kernel to apply some feature improvements and security patches.

Components

EPAS (DBaaS) provides pre‑validated engine versions and various server types. Users can select and use it based on the scale of the service they wish to configure.

Engine version

The engine versions supported by EPAS (DBaaS) are as follows.

Technical support is available until the supplier’s EoTS (End of Technical Service) date, and the EOS date when new creation is halted is set to six months before the EoTS date.

Since the EOS and EoTS dates may change according to the supplier’s policy, please refer to the supplier’s license management policy page for details.

• EPAS: https://www.enterprisedb.com/resources/platform-compatibility

Server type

The server types supported by EPAS (DBaaS) are as follows.

For detailed information about the server types provided by EPAS (DBaaS), see EPAS(DBaaS) 서버 타입.

Standard db1v2m4

Preceding Service

This is a list of services that must be pre‑configured before creating the service. Please refer to the guide provided for each service and prepare in advance.