This topic provides an overview of instance types for YiTian primary ApsaraDB RDS for MySQL instances that originally use the ARM architecture. The overview includes the most recent instance types and the specifications for each instance type.
The YiTian product type is supported for RDS instances that run MySQL 8.0 and MySQL 5.7.
Instance types that are supported for YiTian RDS instances on RDS High-availability Edition or RDS Cluster Edition are available in the following regions: China (Hangzhou), China (Shanghai), China (Beijing), China (Zhangjiakou), China (Ulanqab), China (Shenzhen), China (Guangzhou), China (Chengdu), Indonesia (Jakarta), China (Hong Kong), and Singapore. The instance types will be available in other regions in phases. The ApsaraDB RDS buy page displays the regions that support the instance types.
The instance types for YiTian RDS instances that run RDS Basic Edition are supported in specific regions. The regions displayed on the ApsaraDB RDS buy page prevail.
The instance types vary based on the region of your RDS instance. The instance types that are displayed on the ApsaraDB RDS buy page shall prevail.
The maximum number of connections in this topic indicates the maximum number of processes that can be connected to the RDS instance at a time.
General-purpose instance types cannot ensure the maximum IOPS and maximum I/O bandwidth. If your workloads are sensitive to IOPS, we recommend that you select dedicated instance types.
The instance types for YiTian RDS instances that run RDS High-availability Edition and RDS Cluster Edition support automatic storage expansion and automatic performance expansion. For more information, see Configure automatic expansion for cloud disks.
Instance types available for RDS Basic Edition
General-purpose instance types
Instance type | Number of CPU cores and memory capacity | Maximum connections |
mysql.n1e.small.1 (YiTian) | 1 core, 1 GB | 300 |
mysql.n2e.small.1 (YiTian) | 1 core, 2 GB | 600 |
mysql.n1e.medium.1 (YiTian) | 2 cores, 2 GB | 1,000 |
mysql.n2e.medium.1 (YiTian) | 2 cores, 4 GB | 2,000 |
Instance types available for RDS High-availability Edition
General-purpose instance types
Instance type | Number of CPU cores and memory capacity | Maximum connections | Storage capacity |
mysql.n2m.small.2c | 1 core, 2 GB | 2,000 |
|
mysql.n2m.medium.2c | 2 cores, 4 GB | 4,000 | |
mysql.n4m.medium.2c | 2 cores, 8 GB | 6,000 | |
mysql.n8m.medium.2c | 2 cores, 16 GB | 8,000 | |
mysql.n2m.large.2c | 4 cores, 8 GB | 6,000 | |
mysql.n4m.large.2c | 4 cores, 16 GB | 8,000 | |
mysql.n8m.large.2c | 4 cores, 32 GB | 12,000 | |
mysql.n2m.xlarge.2c | 8 cores, 16 GB | 8,000 | |
mysql.n4m.xlarge.2c | 8 cores, 32 GB | 10,000 | |
mysql.n8m.xlarge.2c | 8 cores, 64 GB | 16,000 |
Dedicated instance types
Formulas to calculate the maximum I/O bandwidth of a cloud disk:
General ESSDs:
ESSDs:
PL1 ESSD:
min{120 + 0.5 × Storage capacity, 350, Maximum I/O bandwidth supported by the instance type}PL2 ESSD:
min{120 + 0.5 × Storage capacity, 750, Maximum I/O bandwidth supported by the instance type}PL3 ESSD:
min{120 + 0.5 × Storage capacity, 4000, Maximum I/O bandwidth supported by the instance type}
Instance type | Number of CPU cores and memory capacity | Maximum connections | Maximum IOPS | Maximum I/O bandwidth supported by the instance type (MB/s) | Storage capacity |
mysql.x4m.medium.2c | 2 cores, 8 GB | 6,000 | 10,000 | 128 |
|
mysql.x8m.medium.2c | 2 cores, 16 GB | 8,000 | 10,000 | 128 | |
mysql.x2m.large.2c | 4 cores, 8 GB | 6,000 | 40,000 | 256 | |
mysql.x4m.large.2c | 4 cores, 16 GB | 8,000 | 40,000 | 256 | |
mysql.x8m.large.2c | 4 cores, 32 GB | 12,000 | 40,000 | 256 | |
mysql.x2m.xlarge.2c | 8 cores, 16 GB | 8,000 | 50,000 | 384 | |
mysql.x4m.xlarge.2c | 8 cores, 32 GB | 10,000 | 50,000 | 384 | |
mysql.x8m.xlarge.2c | 8 cores, 64 GB | 16,000 | 50,000 | 384 | |
mysql.x2m.2xlarge.2c | 16 cores, 32 GB | 16,000 | 80,000 | 640 | |
mysql.x4m.2xlarge.2c | 16 cores, 64 GB | 20,000 | 80,000 | 640 | |
mysql.x8m.2xlarge.2c | 16 cores, 128 GB | 32,000 | 80,000 | 640 | |
mysql.x2m.4xlarge.2c | 32 cores, 64 GB | 32,000 | 125,000 | 1,024 | |
mysql.x4m.4xlarge.2c | 32 cores, 128 GB | 40,000 | 125,000 | 1,024 |