This topic provides an overview of read-only ApsaraDB RDS for PostgreSQL instance types. This overview includes the most recent instance types, the earlier instance types, and the specifications for each instance type.
Note The subscription and pay-as-you-go billing methods are supported for read-only ApsaraDB
RDS for PostgreSQL instances. For more information, see Read-only ApsaraDB RDS instance types. For more information about the prices, go to the buy page.
Read-only ApsaraDB RDS for PostgreSQL instances with local SSDs
| Database engine version | Instance family | Instance type | CPU and memory specifications | Maximum number of connections | Maximum IOPS | Storage capacity |
|---|---|---|---|---|---|---|
|
PostgreSQL 10 |
Dedicated instance family (with a large memory capacity) | pg.x8.xlarge.2 | 8 cores, 64 GB | 10,000 | 18,000 | 20 GB to 6,000 GB |
| pg.x8.2xlarge.2 | 16 cores, 128 GB | 12,000 | 36,000 | |||
| Dedicated instance family (with a large number of cores) | pg.x4.xlarge.2 | 8 cores, 32 GB | 5,000 | 9,000 | ||
| pg.x4.2xlarge.2 | 16 cores, 64 GB | 10,000 | 18,000 | |||
| pg.x4.4xlarge.2 | 32 cores, 128 GB | 12,000 | 36,000 | |||
| Dedicated host instance family | rds.pg.st.h43 | 60 cores, 470 GB | 4,000 | 50,000 |
Read-only ApsaraDB RDS for PostgreSQL instances with standard SSDs or enhanced SSDs (ESSD)
| Database engine version | Instance family | Instance type | CPU and memory specifications | Maximum number of connections | Maximum IOPS | Storage capacity |
|---|---|---|---|---|---|---|
| PostgreSQL 14 PostgreSQL 13, PostgreSQL12, PostgreSQL11, and PostgreSQL 10 | Dedicated instance family | pgro.x2.medium.1c | 2 cores, 4 GB | 400 | For more information, see Maximum IOPS for standard SSDs and ESSDs. | 50 GB to 32,000 GB |
| pgro.x2.large.1c | 4 cores, 8 GB | 800 | ||||
| pgro.x2.xlarge.1c | 8 cores, 16 GB | 1,600 | ||||
| pgro.x2.3large.1c | 12 cores, 24 GB | 2,400 | ||||
| pgro.x2.2xlarge.1c | 16 cores, 32 GB | 3,200 | ||||
| pgro.x2.3xlarge.1c | 24 cores, 48 GB | 4,800 | ||||
| pgro.x2.4xlarge.1c | 32 cores, 64 GB | 6,400 | ||||
| pgro.x2.13large.1c | 52 cores, 96 GB | 9,600 | ||||
| pgro.x2.8xlarge.1c | 64 cores, 128 GB | 12,800 | ||||
| pgro.x2.13xlarge.1c | 104 cores, 192 GB | 19,200 | ||||
| pgro.x4.medium.1c | 2 cores, 8 GB | 800 | ||||
| pgro.x4.large.1c | 4 cores, 16 GB | 1,600 | ||||
| pgro.x4.xlarge.1c | 8 cores, 32 GB | 3,200 | ||||
| pgro.x4.3large.1c | 12 cores, 48 GB | 4,800 | ||||
| pgro.x4.2xlarge.1c | 16 cores, 64 GB | 6,400 | ||||
| pgro.x4.3xlarge.1c | 24 cores, 96 GB | 9,600 | ||||
| pgro.x4.4xlarge.1c | 32 cores, 128 GB | 12,800 | ||||
| pgro.x4.13large.1c | 52 cores, 192 GB | 19,200 | ||||
| pgro.x4.8xlarge.1c | 64 cores, 256 GB | 25,600 | ||||
| pgro.x4.13xlarge.1c | 104 cores, 384 GB | 38,400 | ||||
| pgro.x8.medium.1c | 2 cores, 16 GB | 1,600 | ||||
| pgro.x8.large.1c | 4 cores, 32 GB | 3,200 | ||||
| pgro.x8.xlarge.1c | 8 cores, 64 GB | 6,400 | ||||
| pgro.x8.3large.1c | 12 cores, 96 GB | 9,600 | ||||
| pgro.x8.2xlarge.1c | 16 cores, 128 GB | 12,800 | ||||
| pgro.x8.3xlarge.1c | 24 cores, 192 GB | 19,200 | ||||
| pgro.x8.4xlarge.1c | 32 cores, 256 GB | 25,600 | ||||
| pgro.x8.13large.1c | 52 cores, 384 GB | 38,400 | ||||
| pgro.x8.8xlarge.1c | 64 cores, 512 GB | 51,200 | ||||
| pgro.x8.13xlarge.1c | 104 cores, 768 GB | 76,800 |
Read-only ApsaraDB RDS for PostgreSQL instances with the new general-purpose instance types
Note The new general-purpose instance types of ApsaraDB RDS for PostgreSQL provide better
scalability and higher performance than the previous general-purpose instance types.
In addition, the amount of time that is required to create an RDS instance and the
amount of time that is required to change the specifications of an RDS instance are
reduced. If a primary RDS instance runs RDS High-availability Edition and uses a new
general-purpose instance type, you can create read-only RDS instances with the new
general-purpose instance types for the primary RDS instance. For more information,
see Primary ApsaraDB RDS for PostgreSQL instance types.
| Database engine version | Instance family | Instance type | CPU and memory specifications | Maximum number of connections | Maximum IOPS | Storage capacity |
|---|---|---|---|---|---|---|
| PostgreSQL 14 PostgreSQL 13, PostgreSQL12, PostgreSQL11, and PostgreSQL 10 | General-purpose instance family | pgro.n4.2c.1m | 2 cores, 8 GB | 800 | For more information, see Maximum IOPS for standard SSDs and ESSDs. | 20 GB to 32,000 GB |
| pgro.n4.4c.1m | 4 cores, 16 GB | 1,600 | ||||
| pgro.n4.6c.1m | 6 cores, 24 GB | 2,400 | ||||
| pgro.n4.8c.1m | 8 cores, 32 GB | 3,200 | ||||
| pgro.n4.12c.1m | 12 cores, 48 GB | 4,600 |