Starting January 31, 2023, some general-purpose instance types are no longer available for purchase when you create ApsaraDB RDS for PostgreSQL instances that run RDS Basic Edition due to product optimization and adjustment.
Background information
From January 31, 2023, Alibaba Cloud gradually phases out some general-purpose instance types for RDS instances that run RDS Basic Edition. We recommend that you select the new general-purpose instance types for your RDS instances. The new general-purpose instance types deliver better scalability and performance and reduce the time to create an RDS instance or change the specifications of an RDS instance. For more information, see Instance types for primary ApsaraDB RDS for PostgreSQL instances.
Instance types that are to be phased out and effective dates
RDS edition | Database engine version | Instance family | Instance type | Number of CPU cores and memory capacity | EOS date |
RDS Basic Edition | PostgreSQL 15, PostgreSQL 14, PostgreSQL 13, PostgreSQL 12, PostgreSQL 11, and PostgreSQL 10 | General-purpose instance family | pg.n2.small.1 | 1 core, 2 GB | January 31, 2023 |
pg.n2.medium.1 | 2 cores, 4 GB | September 15, 2023 | |||
pg.n4.medium.1 | 2 cores, 8 GB | ||||
pg.n2.large.1 | 4 cores, 8 GB | ||||
pg.n4.large.1 | 4 cores, 16 GB | ||||
pg.n2.xlarge.1 | 8 cores, 16 GB | ||||
pg.n4.xlarge.1 | 8 cores, 32 GB | ||||
pg.n2.2xlarge.1 | 16 cores, 32 GB | ||||
pg.n4.2xlarge.1 | 16 cores, 64 GB | ||||
pg.n8.2xlarge.1 | 16 cores, 128 GB | ||||
pg.n4.4xlarge.1 | 32 cores, 128 GB | ||||
pg.n8.4xlarge.1 | 32 cores, 256 GB | ||||
pg.n4.8xlarge.1 | 64 cores, 256 GB | January 31, 2023 | |||
pg.n8.8xlarge.1 | 64 cores, 512 GB | January 31, 2023 |
Impacts and suggestions
Category | Impact | Suggestion |
Existing RDS instance |
| We recommend that you select an available instance type when you change the instance type. The ApsaraDB RDS buy page displays available instance types. Note If you call an API operation or use Terraform to change the instance type, we recommend that you change the value of the parameter that specifies the instance type to an available instance type. This way, the instance type can be successfully changed even if the original instance type is phased out. |
New RDS instances | You cannot select a phased-out instance type when you create an RDS instance. | We recommend that you select an available instance type. For more information, see Instance types for primary ApsaraDB RDS for PostgreSQL instances. Note If you call an API operation or use Terraform to create an RDS instance, we recommend that you change the value of the parameter that specifies the instance type to an available instance type. This way, the RDS instance can be successfully created even if the general-purpose instance type is phased out. |