DB Instance Specifications¶
For details about single DB instance specifications, see Table 1. The specifications vary according to actual situations.
For primary/standby DB instances and read replicas, the specifications are displayed based on the following rules:
For primary/standby DB instances: the suffix .ha needs to be added to the DB instance name, for example, rds.mysql.s1.xlarge.ha.
For read replicas: the suffix .rr needs to be added to the DB instance name, for example, rds.mysql.s1.xlarge.rr.
Constraints¶
For Microsoft SQL Server, Only 2022_EE, 2019_EE and 2017_EE support the creation of read replicas and do not support the creation of single DB instances.
Instance Class | DB Engine | Spec Code | vCPUs | Memory (GB) |
|---|---|---|---|---|
General computing-plus | MySQL | rds.mysql.c2.medium | 1 | 2 |
rds.mysql.s1.medium | 1 | 4 | ||
rds.mysql.c2.large | 2 | 4 | ||
rds.mysql.s1.large | 2 | 8 | ||
rds.mysql.m1.large | 2 | 16 | ||
rds.mysql.c2.xlarge | 4 | 8 | ||
rds.mysql.s1.xlarge | 4 | 16 | ||
rds.mysql.m1.xlarge | 4 | 32 | ||
rds.mysql.c2.2xlarge | 8 | 16 | ||
rds.mysql.s1.2xlarge | 8 | 32 | ||
rds.mysql.m1.2xlarge | 8 | 64 | ||
rds.mysql.c2.4xlarge | 16 | 32 | ||
rds.mysql.s1.4xlarge | 16 | 64 | ||
rds.mysql.m1.4xlarge | 16 | 128 | ||
rds.mysql.c2.8xlarge | 32 | 64 | ||
rds.mysql.s1.8xlarge | 32 | 128 | ||
rds.mysql.m1.8xlarge | 32 | 256 | ||
rds.mysql.c3.15xlarge.2 | 60 | 128 | ||
rds.mysql.c3.15xlarge.4 | 60 | 256 | ||
rds.mysql.m3.15xlarge.8 | 60 | 512 | ||
PostgreSQL | rds.pg.c2.medium | 1 | 2 | |
rds.pg.s1.medium | 1 | 4 | ||
rds.pg.c2.large | 2 | 4 | ||
rds.pg.s1.large | 2 | 8 | ||
rds.pg.m1.large | 2 | 16 | ||
rds.pg.c2.xlarge | 4 | 8 | ||
rds.pg.s1.xlarge | 4 | 16 | ||
rds.pg.m1.xlarge | 4 | 32 | ||
rds.pg.c2.2xlarge | 8 | 16 | ||
rds.pg.s1.2xlarge | 8 | 32 | ||
rds.pg.m1.2xlarge | 8 | 64 | ||
rds.pg.c2.4xlarge | 16 | 32 | ||
rds.pg.s1.4xlarge | 16 | 64 | ||
rds.pg.m1.4xlarge | 16 | 128 | ||
rds.pg.c2.8xlarge | 32 | 64 | ||
rds.pg.s1.8xlarge | 32 | 128 | ||
rds.pg.m1.8xlarge | 32 | 256 | ||
rds.pg.c3.15xlarge.2 | 60 | 128 | ||
rds.pg.c3.15xlarge.4 | 60 | 256 | ||
rds.pg.m3.15xlarge.8 | 60 | 512 | ||
Microsoft SQL Server | rds.mssql.c2.large | 2 | 4 | |
rds.mssql.s1.large | 2 | 8 | ||
rds.mssql.m1.large | 2 | 16 | ||
rds.mssql.c2.xlarge | 4 | 8 | ||
rds.mssql.s1.xlarge | 4 | 16 | ||
rds.mssql.m1.xlarge | 4 | 32 | ||
rds.mssql.c2.2xlarge | 8 | 16 | ||
rds.mssql.s1.2xlarge | 8 | 32 | ||
rds.mssql.m1.2xlarge | 8 | 64 | ||
rds.mssql.c2.4xlarge | 16 | 32 | ||
rds.mssql.s1.4xlarge | 16 | 64 | ||
rds.mssql.m1.4xlarge | 16 | 128 | ||
rds.mssql.c2.8xlarge | 32 | 64 | ||
rds.mssql.s1.8xlarge | 32 | 128 | ||
rds.mssql.m1.8xlarge | 32 | 256 | ||
rds.mssql.c3.15xlarge.2 | 60 | 128 | ||
rds.mssql.c3.15xlarge.4 | 60 | 256 | ||
rds.mssql.m3.15xlarge.8 | 60 | 512 |