This topic describes the instance types of and the corresponding specifications of ApsaraDB MyBase for MySQL primary instances.

Note Some instance types in the following tables may be unavailable. You can select only the instance types that are available on the buy page of ApsaraDB MyBase for MySQL.

A High-availability Edition instance with enhanced SSDs

Instance type CPU and memory specifications Maximum number of connections
mysql.z2.medium.2c 2 CPU cores, 4 GB memory 1,200
mysql.z4.medium.2c 2 CPU cores, 8 GB memory 2,000
mysql.z8.medium.2c 2 CPU cores, 16 GB memory 2,500
mysql.z2.large.2c 4 CPU cores, 8 GB memory 2,000
mysql.z4.large.2c 4 CPU cores, 16 GB memory 2,500
mysql.z8.large.2c 4 CPU cores, 32 GB memory 5,000
mysql.z2.xlarge.2c 8 CPU cores, 16 GB memory 2,500
mysql.z4.xlarge.2c 8 CPU cores, 32 GB memory 5,000
mysql.z8.xlarge.2c 8 CPU cores, 64 GB memory 10,000
mysql.z2.2xlarge.2c 16 CPU cores, 32 GB memory 5,000
mysql.z4.2xlarge.2c 16 CPU cores, 64 GB memory 10,000
mysql.z8.2xlarge.2c 16 CPU cores, 128 GB memory 20,000
mysql.z2.4xlarge.2c 32 CPU cores, 64 GB memory 10,000
mysql.z4.4xlarge.2c 32 CPU cores, 128 GB memory 20,000
mysql.z8.4xlarge.2c 32 CPU cores, 256 GB memory 40,000
mysql.z2.8xlarge.2c 64 CPU cores, 128 GB memory 20,000
mysql.z4.8xlarge.2c 64 CPU cores, 256 GB memory 40,000
mysql.z8.8xlarge.2c 64 CPU cores, 512 GB memory 80,000
mysql.z2.13xlarge.2c 104 CPU cores, 192 GB memory 30,000
mysql.z4.13xlarge.2c 104 CPU cores, 384 GB memory 60,000
mysql.z8.13xlarge.2c 104 CPU cores, 768 GB memory 120,000

A High-availability Edition instance with local SSDs

Instance type CPU and memory specifications Maximum number of connections
mysql.z2.medium.2 2 CPU cores, 4 GB memory 1,200
mysql.z4.medium.2 2 CPU cores, 8 GB memory 2,000
mysql.z8.medium.2 2 CPU cores, 16 GB memory 2,500
mysql.z2.large.2 4 CPU cores, 8 GB memory 2,000
mysql.z4.large.2 4 CPU cores, 16 GB memory 2,500
mysql.z8.large.2 4 CPU cores, 32 GB memory 5,000
mysql.z2.xlarge.2 8 CPU cores, 16 GB memory 2,500
mysql.z4.xlarge.2 8 CPU cores, 32 GB memory 5,000
mysql.z8.xlarge.2 8 CPU cores, 64 GB memory 10,000
mysql.z2.2xlarge.2 16 CPU cores, 32 GB memory 5,000
mysql.z4.2xlarge.2 16 CPU cores, 64 GB memory 10,000
mysql.z8.2xlarge.2 16 CPU cores, 128 GB memory 20,000
mysql.z2.4xlarge.2 32 CPU cores, 64 GB memory 10,000
mysql.z4.4xlarge.2 32 CPU cores, 128 GB memory 20,000
mysql.z8.4xlarge.2 32 CPU cores, 256 GB memory 40,000
mysql.z2.8xlarge.2 64 CPU cores, 128 GB memory 20,000
mysql.z4.8xlarge.2 64 CPU cores, 256 GB memory 40,000
mysql.z8.8xlarge.2 64 CPU cores, 512 GB memory 80,000

A Master-replica Edition instance with enhanced SSDs

Instance type CPU and memory specifications Maximum number of connections
mysql.g2.small.1c 1 CPU core, 2 GB memory 600
mysql.g2.medium.1c 2 CPU cores, 4 GB memory 1,200
mysql.g4.medium.1c 2 CPU cores, 8 GB memory 2,000
mysql.g8.medium.1c 2 CPU cores, 16 GB memory 2,500
mysql.g2.large.1c 4 CPU cores, 8 GB memory 2,000
mysql.g4.large.1c 4 CPU cores, 16 GB memory 2,500
mysql.g8.large.1c 4 CPU cores, 32 GB memory 5,000
mysql.g2.xlarge.1c 8 CPU cores, 16 GB memory 2,500
mysql.g4.xlarge.1c 8 CPU cores, 32 GB memory 5,000
mysql.g8.xlarge.1c 8 CPU cores, 64 GB memory 10,000
mysql.g2.2xlarge.1c 16 CPU cores, 32 GB memory 5,000
mysql.g4.2xlarge.1c 16 CPU cores, 64 GB memory 10,000
mysql.g8.2xlarge.1c 16 CPU cores, 128 GB memory 20,000
mysql.g2.4xlarge.1c 32 CPU cores, 64 GB memory 10,000
mysql.g4.4xlarge.1c 32 CPU cores, 128 GB memory 20,000
mysql.g8.4xlarge.1c 32 CPU cores, 256 GB memory 40,000
mysql.g2.8xlarge.1c 64 CPU cores, 128 GB memory 20,000
mysql.g4.8xlarge.1c 64 CPU cores, 256 GB memory 40,000
mysql.g8.8xlarge.1c 64 CPU cores, 512 GB memory 80,000
mysql.g2.13xlarge.1c 104 CPU cores, 192 GB memory 30,000
mysql.g4.13xlarge.1c 104 CPU cores, 384 GB memory 60,000
mysql.g8.13xlarge.1c 104 CPU cores, 768 GB memory 120,000