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Overview

Service Overview

PostgreSQL (DBaaS) is an open source relational database management system (RDBMS). Samsung Cloud Platform provides an environment that can automate PostgreSQL installation through a web-based console and perform management functions for operation.

PostgreSQL (DBaaS) is designed as a high-availability architecture that performs storage-based data replication and minimizes failover time. To prevent data loss, when the content of the Active server changes, it is synchronously replicated to the Standby server, and up to five read‑only servers called Replicas are provided for read‑load balancing and disaster recovery (DR). Additionally, to prepare for issues with the DB server or data, it offers an automatic backup function at user‑specified times, enabling data recovery to a desired point in time.

Architecture
Figure. PostgreSQL(DBaaS) Architecture

Provided Features

PostgreSQL (DBaaS) provides the following features.

  • Auto Provisioning (Auto Provisioning): It is possible to install and configure the Database (DB) via UI, and it provides an Active-standby redundancy configuration built on storage replication. In case of an Active server failure, 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, restart is possible if there is an issue with the DB or to apply configuration values. When configured for high availability (HA), the user can directly perform node switching between Active-Standby via Switch-over.
  • Backup and Recovery: Provides a data backup function based on its own backup commands. The backup time window and storage organization can be set by the user, and additional fees are incurred based on backup size. It also provides a recovery function for backed-up data, so when the user performs a recovery, a separate DB is created and the recovery proceeds to the point in time selected by the user (backup save point, user-specified point). If the user restores to a specified point, the recovery point can be set to 5 minutes, 10 minutes, 30 minutes, or 1 hour before the stored backup file and archive file.
  • Version Management: Provides version upgrade (Minor) functionality due to some feature improvements and security patches. Whether to perform a backup for the version upgrade can be selected by the user, and if a backup is performed, data is backed up before applying the patch, then the DB engine is updated.
  • Replica configuration: For read load balancing and disaster recovery (DR), up to 5 Read Replicas can be configured in the same/different region.
  • Audit Settings: Supports audit (Audit) functionality for major activities within the database.
  • Parameter Management: Performance improvement and security-related DB configuration parameters can be modified.
  • Service Status Query: Retrieve the final status of the current DB service.
  • Monitoring: CPU, memory, DB performance monitoring information can be checked through the Cloud Monitoring service.
  • DB User Management: Retrieve 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 IPs.
  • Archive Management: You can set the retention period of Archive files (1 day~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 through Audit settings.
  • Migration: Synchronize data in real time with the operating database, and support migration using the Replication method without service interruption.

Components

PostgreSQL (DBaaS) provides pre-validated engine versions and various server types according to the open source support policy. Users can select and use them according to the scale of the service they want to configure.

Engine Version

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

Technical support can be used until the supplier’s EoTS (End of Technical Service) date, and the EOS date when new creation is stopped 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.

Provided VersionEOS Date(Samsung Cloud Platform New Creation Stop Date)EoTS Date(Community Technical Support End Date)
14.172026-06 (scheduled)2026-11-12
14.182026-06 (scheduled)2026-11-12
15.122027-06 (scheduled)2027-11-11
15.132027-06 (scheduled)2027-11-11
16.82028-06 (scheduled)2028-11-09
16.92028-06 (scheduled)2028-11-09
Table. PostgreSQL (DBaaS) provided engine versions

Server Type

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

For detailed information about the server types provided by PostgreSQL(DBaaS), see PostgreSQL(DBaaS) server type.

Standard db1v2m4







Category Example Detailed description
Server Type Standard Provided Server Types
  • Standard: Standard specifications (vCPU, Memory) configuration commonly used
  • High Capacity: Large-capacity server specifications of 24 vCores or more
Server specifications db1 Provided server specifications
  • db1: Standard specifications (vCPU, Memory) configuration commonly used
  • dbh2: Large-scale server specifications
    • Provides servers with 24 vCores or more
Server specifications v2 Number of vCores
  • v2: 2 virtual cores
Server Specifications m4 Memory Capacity
  • m4: 4GB Memory
Table. PostgreSQL (DBaaS) server type components
# Preliminary Service This is a list of services that must be pre-configured before creating the service. For details, please refer to the guide provided for each service and prepare in advance.<br>
Service Category Service Detailed Description
Networking VPC A service that provides an isolated virtual network in a cloud environment
Table. PostgreSQL(DBaaS) Pre-service

1 - Server Type

PostgreSQL(DBaaS) server type

PostgreSQL(DBaaS) provides a server type composed of various combinations such as CPU, Memory, Network Bandwidth. When creating PostgreSQL(DBaaS), the Database Engine is installed according to the server type selected for the purpose of use.

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

Standard db1v2m4
Classification
ExampleDetailed Description
Server TypeStandardProvided server type distinction
  • Standard: Composed of standard specifications (vCPU, Memory) commonly used
  • High Capacity: Server specifications with higher capacity than Standard
Server specificationdb1Provided server type distinction and generation
  • db: means general specification, and 1 means generation
  • dbh: h means large-capacity server specification, and 2 means generation
Server specificationv2Number of vCores
  • v2: 2 virtual cores
Server specificationm4Memory capacity
  • m4: 4GB Memory
Fig. PostgreSQL(DBaaS) server type format

db1 server type

The db1 server type of PostgreSQL(DBaaS) is provided with standard specifications(vCPU, Memory) and is suitable for various database workloads.

Up to 3.3Ghz Intel 3rd generation (Ice Lake) Xeon Gold 6342 Processor Supports up to 16 vCPUs and 256 GB of memory Up to 12.5 Gbps of networking speed

ClassificationServer TypevCPUMemoryNetwork Bandwidth
Standarddb1v2m42 vCore4 GBUp to 10 Gbps
Standarddb1v2m82 vCore8 GBUp to 10 Gbps
Standarddb1v2m162 vCore16 GBUp to 10 Gbps
Standarddb1v2m242 vCore24 GBUp to 10 Gbps
Standarddb1v2m322 vCore32 GBUp to 10 Gbps
Standarddb1v4m84 vCore8 GBUp to 10 Gbps
Standarddb1v4m164 vCore16 GBUp to 10 Gbps
Standarddb1v4m324 vCore32 GBUp to 10 Gbps
Standarddb1v4m484 vCore48 GBUp to 10 Gbps
Standarddb1v4m644 vCore64 GBUp to 10 Gbps
Standarddb1v6m126 vCore12 GBUp to 10 Gbps
Standarddb1v6m246 vCore24 GBUp to 10 Gbps
Standarddb1v6m486 vCore48 GBUp to 10 Gbps
Standarddb1v6m726 vCore72 GBUp to 10 Gbps
Standarddb1v6m966 vCore96 GBUp to 10 Gbps
Standarddb1v8m168 vCore16 GBUp to 10 Gbps
Standarddb1v8m328 vCore32 GBUp to 10 Gbps
Standarddb1v8m648 vCore64 GBUp to 10 Gbps
Standarddb1v8m968 vCore96 GBUp to 10 Gbps
Standarddb1v8m1288 vCore128 GBUp to 10 Gbps
Standarddb1v10m2010 vCore20 GBUp to 10 Gbps
Standarddb1v10m4010 vCore40 GBUp to 10 Gbps
Standarddb1v10m8010 vCore80 GBUp to 10 Gbps
Standarddb1v10m12010 vCore120 GBUp to 10 Gbps
Standarddb1v10m16010 vCore160 GBUp to 10 Gbps
Standarddb1v12m2412 vCore24 GBUp to 12.5 Gbps
Standarddb1v12m4812 vCore48 GBUp to 12.5 Gbps
Standarddb1v12m9612 vCore96 GBUp to 12.5 Gbps
Standarddb1v12m14412 vCore144 GBUp to 12.5 Gbps
Standarddb1v12m19212 vCore192 GBUp to 12.5 Gbps
Standarddb1v14m2814 vCore28 GBUp to 12.5 Gbps
Standarddb1v14m5614 vCore56 GBUp to 12.5 Gbps
Standarddb1v14m11214 vCore112 GBUp to 12.5 Gbps
Standarddb1v14m16814 vCore168 GBUp to 12.5 Gbps
Standarddb1v14m22414 vCore224 GBUp to 12.5 Gbps
Standarddb1v16m3216 vCore32 GBUp to 12.5 Gbps
Standarddb1v16m6416 vCore64 GBUp to 12.5 Gbps
Standarddb1v16m12816 vCore128 GBUp to 12.5 Gbps
Standarddb1v16m19216 vCore192 GBUp to 12.5 Gbps
Standarddb1v16m25616 vCore256 GBUp to 12.5 Gbps
Table. PostgreSQL(DBaaS) server type specifications - db1 server type

dbh2 server type

The dbh2 server type of PostgreSQL(DBaaS) is provided with large-capacity server specifications and is suitable for database workloads for large-scale data processing.

Up to 3.2GHz Intel 4th generation (Sapphire Rapids) Xeon Gold 6448H Processor Supports up to 128 vCPUs and 1,536 GB of memory Up to 25Gbps of networking speed

ClassificationServer TypevCPUMemoryNetwork Bandwidth
High Capacitydbh2v24m4824 vCore48 GBUp to 25 Gbps
High Capacitydbh2v24m9624 vCore96 GBUp to 25 Gbps
High Capacitydbh2v24m19224 vCore192 GBUp to 25 Gbps
High Capacitydbh2v24m28824 vCore288 GBUp to 25 Gbps
High Capacitydbh2v32m6432 vCore64 GBUp to 25 Gbps
High Capacitydbh2v32m12832 vCore128 GBUp to 25 Gbps
High Capacitydbh2v32m25632 vCore256 GBUp to 25 Gbps
High Capacitydbh2v32m38432 vCore384 GBUp to 25 Gbps
High Capacitydbh2v48m19248 vCore192 GBUp to 25 Gbps
High Capacitydbh2v48m57648 vCore576 GBUp to 25 Gbps
High Capacitydbh2v64m25664 vCore256 GBUp to 25 Gbps
High Capacitydbh2v64m76864 vCore768 GBUp to 25 Gbps
High Capacitydbh2v72m28872 vCore288 GBUp to 25 Gbps
High Capacitydbh2v72m86472 vCore864 GBUp to 25 Gbps
High Capacitydbh2v96m38496 vCore384 GBUp to 25 Gbps
High Capacitydbh2v96m115296 vCore1152 GBUp to 25 Gbps
High Capacitydbh2v128m512128 vCore512 GBUp to 25 Gbps
High Capacitydbh2v128m1536128 vCore1536 GBUp to 25 Gbps
Table. PostgreSQL(DBaaS) server type specifications - dbh2 server type

2 - Monitoring Metrics

PostgreSQL(DBaaS) Monitoring Metrics

The following table shows the performance monitoring metrics of PostgreSQL(DBaaS) that can be checked through Cloud Monitoring. For detailed instructions on using Cloud Monitoring, refer to the Cloud Monitoring guide.

For server monitoring metrics of PostgreSQL(DBaaS), refer to the Virtual Server Monitoring Metrics guide.

Performance ItemDetailed DescriptionUnit
Active LocksNumber of Active Lockscnt
Active Locks [Access Exclusive]Number of Access Exclusive Lockscnt
Active Locks [Access Share]Number of Access Share Lockscnt
Active Locks [Total]Total Number of Active Lockscnt
Active SessionsNumber of Active Sessionscnt
Active Sessions [Total]Total Number of Active Sessionscnt
Apply Lag TimeApply Lag Timemin
Check No ReplicationCheck No Replication Valuecnt
Check ReplicationCheck Replication Status Valuestatus
Connection UsageDB Connection Usage Rate (%)%
Connection Usage [Total]DB Connection Usage Rate (%)%
DB Age MaxDatabase Age (Frozen XID) Valueage
Exclusive LocksNumber of Exclusive Lockscnt
Idle In Transaction SessionsNumber of Idle In Transaction Sessionscnt
Idle In Transaction Sessions [Total]Total Number of Idle In Transaction Sessionscnt
Idle SessionsNumber of Idle Sessionscnt
Idle Sessions [Total]Total Number of Idle Sessionscnt
Row Exclusive LocksNumber of Row Exclusive Lockscnt
Row Share LocksNumber of Row Share Lockscnt
Share LocksNumber of Share Lockscnt
Share Row Exclusive LocksNumber of Share Row Exclusive Lockscnt
Share Update Exclusive LocksNumber of Share Update Exclusive Lockscnt
SlowqueriesNumber of Long-Running SQL Queries (over 5 minutes)cnt
Tablespace UsedTable Space Sizebytes
Tablespace Used [Total]Table Space Sizebytes
Tablespace Used Bytes [MB]File System Directory Usage (MB)MB
Tablespaces [Total]File System Directory Usage (MB)MB
Transaction Time Max [Long]Longest Running Transaction Time (minutes)min
Transaction Time Max Total [Long]Longest Running Transaction Time (minutes)min
Wait LocksNumber of Sessions Waiting for Locks (per DB)cnt
Wait Locks [Long Total]Number of Sessions Waiting for Locks for a Long Time (over 300 seconds)cnt
Wait Locks [Long]Number of Sessions Waiting for Lockscnt
Wait Locks [Total]Total Number of Sessions Waiting for Lockscnt
Waiting SessionsNumber of Waiting Sessionscnt
Waiting Sessions [Total]Total Number of Waiting Sessionscnt
Table. PostgreSQL(DBaaS) Monitoring Metrics