This page lists the instance types and specifications for read-only ApsaraDB RDS for MySQL instances based on the x86 architecture.
To create a read-only instance, see Create a read-only RDS for MySQL instance.
Read-only instances support subscription and pay-as-you-go billing. For pricing details, see Read-only instance pricing. The prices on the official purchase page prevail.
Column descriptions
| Column | Description |
|---|---|
| Maximum connections | Maximum number of concurrent connections to the instance. |
| Maximum IOPS | Maximum number of I/O operations per second. General-purpose instance families do not guarantee this value. Choose a dedicated instance family if your workload is IOPS-sensitive. |
| Maximum I/O bandwidth | Maximum storage throughput in Mbit/s. For cloud disk instances, the actual value depends on the storage type, storage capacity, and instance type. |
| Storage capacity | Supported storage range for the instance type. |
RDS Basic Edition instances with cloud disks
The actual maximum I/O bandwidth depends on the storage type, storage capacity, and instance type. For the calculation formula, see Maximum throughput calculation formula.
All Basic Edition instances use the General-purpose instance family. Maximum IOPS and maximum I/O bandwidth are not guaranteed for general-purpose instances.
All instance types in this section support the following storage options: PL1 ESSD: 20–64,000 GB; PL2 ESSD: 500–64,000 GB; PL3 ESSD: 1,500–64,000 GB; Premium ESSD: 10–64,000 GB; Standard SSD: 20–6,000 GB.
| Instance type | CPU and memory | Maximum connections |
|---|---|---|
| mysqlro.n2.small.c | 1 core, 2 GB | 2,000 |
| mysqlro.n2.medium.c | 2 cores, 4 GB | 4,000 |
| mysqlro.n4.medium.c | 2 cores, 8 GB | 6,000 |
| mysqlro.n8.medium.c | 2 cores, 16 GB | 8,000 |
| mysqlro.n2.large.c | 4 cores, 8 GB | 6,000 |
| mysqlro.n4.large.c | 4 cores, 16 GB | 8,000 |
| mysqlro.n8.large.c | 4 cores, 32 GB | 12,000 |
| mysqlro.n2.xlarge.c | 8 cores, 16 GB | 8,000 |
| mysqlro.n4.xlarge.c | 8 cores, 32 GB | 10,000 |
| mysqlro.n8.xlarge.c | 8 cores, 64 GB | 16,000 |
RDS High-availability Edition instances with Premium Local SSDs
Supported major engine versions: 8.0, 5.7, and 5.6.
General-purpose instances
Maximum IOPS and maximum I/O bandwidth are not guaranteed for general-purpose instances.
| Instance type | CPU and memory | Maximum connections | Maximum IOPS | Storage capacity |
|---|---|---|---|---|
| rds.mysql.t1.small | 1 core, 1 GB | 300 | 1,200 | 5–4,000 GB |
| rds.mysql.s1.small | 1 core, 2 GB | 600 | 2,000 | 5–4,000 GB |
| rds.mysql.s2.large | 2 cores, 4 GB | 2,000 | 4,000 | 5–4,000 GB |
| rds.mysql.s2.xlarge | 2 cores, 8 GB | 2,000 | 6,000 | 5–4,000 GB |
| rds.mysql.s3.large | 4 cores, 8 GB | 2,000 | 8,000 | 5–4,000 GB |
| rds.mysql.m1.medium | 4 cores, 16 GB | 4,000 | 14,000 | 5–4,000 GB |
| rds.mysql.c1.large | 8 cores, 16 GB | 4,000 | 20,000 | 5–5,000 GB |
| rds.mysql.c1.xlarge | 8 cores, 32 GB | 8,000 | 28,000 | 5–5,000 GB |
| rds.mysql.c2.xlarge | 16 cores, 64 GB | 16,000 | 40,000 | 20–12,000 GB |
| rds.mysql.c2.xlp2 | 16 cores, 96 GB | 24,000 | 40,000 | 20–12,000 GB |
Dedicated instances
| Instance type | CPU and memory | Maximum connections | Maximum IOPS | Storage capacity |
|---|---|---|---|---|
| mysqlro.x8.medium.1 | 2 cores, 16 GB | 2,500 | 15,000 | 20–4,000 GB |
| mysqlro.x4.large.1 | 4 cores, 16 GB | 2,500 | 30,000 | 20–4,000 GB |
| mysqlro.x8.large.1 | 4 cores, 32 GB | 5,000 | 40,000 | 20–4,000 GB |
| mysqlro.x4.xlarge.1 | 8 cores, 32 GB | 5,000 | 45,000 | 20–5,000 GB |
| mysqlro.x8.xlarge.1 | 8 cores, 64 GB | 10,000 | 50,000 | 20–5,000 GB |
| mysqlro.x4.2xlarge.1 | 16 cores, 64 GB | 10,000 | 60,000 | 20–12,000 GB |
| mysqlro.x8.2xlarge.1 | 16 cores, 128 GB | 20,000 | 60,000 | 20–12,000 GB |
| mysqlro.x4.4xlarge.1 | 32 cores, 128 GB | 20,000 | 80,000 | MySQL 5.7 and 8.0 in Singapore and China (Hong Kong): 20–16,000 GB; MySQL 5.7 and 8.0 in other regions: 20–24,000 GB; MySQL 5.6: 20–16,000 GB |
| mysqlro.x8.4xlarge.1 | 32 cores, 256 GB | 40,000 | 100,000 | Same as mysqlro.x4.4xlarge.1 |
| mysqlro.x4.8xlarge.1 | 64 cores, 256 GB | 40,000 | 150,000 | Same as mysqlro.x4.4xlarge.1 |
| mysqlro.x8.8xlarge.1 | 64 cores, 512 GB | 80,000 | 150,000 | Same as mysqlro.x4.4xlarge.1 |
Dedicated host instances
| Instance type | CPU and memory | Maximum connections | Maximum IOPS | Storage capacity |
|---|---|---|---|---|
| rds.mysql.st.h43 | 60 cores, 470 GB | 100,000 | 150,000 | 20–12,000 GB |
| rds.mysql.st.v52 | 90 cores, 720 GB | 150,000 | 150,000 | 20–12,000 GB |
RDS High-availability Edition instances with cloud disks
-
The actual maximum IOPS depends on the storage type, storage capacity, and instance type. For details, see Maximum IOPS.
-
The actual maximum I/O bandwidth depends on the storage type, storage capacity, and instance type. For details, see Maximum throughput.
Supported major engine versions: 8.0, 5.7, and 5.6.
General-purpose instances
Maximum IOPS and maximum I/O bandwidth are not guaranteed for general-purpose instances.
All instance types in this section support the following storage options: PL1 ESSD: 20–64,000 GB; PL2 ESSD: 500–64,000 GB; PL3 ESSD: 1,500–64,000 GB; Premium ESSD: 10–64,000 GB; Standard SSD: 20–6,000 GB.
| Instance type | CPU and memory | Maximum connections |
|---|---|---|
| mysqlro.n2.small.1c | 1 core, 2 GB | 2,000 |
Dedicated instances
All instance types in this section support the following storage options: PL1 ESSD: 20–64,000 GB; PL2 ESSD: 500–64,000 GB; PL3 ESSD: 1,500–64,000 GB; Premium ESSD: 10–64,000 GB; Standard SSD: 20–6,000 GB.
| Instance type | CPU and memory | Maximum connections | Maximum IOPS | Maximum I/O bandwidth (Mbit/s) |
|---|---|---|---|---|
| mysqlro.x2.medium.1c | 2 cores, 4 GB | 4,000 | 10,000 | 125 |
| mysqlro.x4.medium.1c | 2 cores, 8 GB | 6,000 | 10,000 | 125 |
| mysqlro.x8.medium.1c | 2 cores, 16 GB | 8,000 | 10,000 | 125 |
| mysqlro.x2.large.1c | 4 cores, 8 GB | 6,000 | 20,000 | 187.5 |
| mysqlro.x4.large.1c | 4 cores, 16 GB | 8,000 | 20,000 | 187.5 |
| mysqlro.x8.large.1c | 4 cores, 32 GB | 12,000 | 20,000 | 187.5 |
| mysqlro.x2.xlarge.1c | 8 cores, 16 GB | 8,000 | 25,000 | 250 |
| mysqlro.x4.xlarge.1c | 8 cores, 32 GB | 10,000 | 25,000 | 250 |
| mysqlro.x8.xlarge.1c | 8 cores, 64 GB | 16,000 | 25,000 | 250 |
| mysqlro.x2.3large.1c | 12 cores, 24 GB | 12,000 | 30,000 | 312.5 |
| mysqlro.x4.3large.1c | 12 cores, 48 GB | 30,000 | 30,000 | 312.5 |
| mysqlro.x8.3large.1c | 12 cores, 96 GB | 24,000 | 30,000 | 312.5 |
| mysqlro.x2.2xlarge.1c | 16 cores, 32 GB | 16,000 | 40,000 | 375 |
| mysqlro.x4.2xlarge.1c | 16 cores, 64 GB | 20,000 | 40,000 | 375 |
| mysqlro.x8.2xlarge.1c | 16 cores, 128 GB | 32,000 | 40,000 | 375 |
| mysqlro.x2.3xlarge.1c | 24 cores, 48 GB | 24,000 | 50,000 | 500 |
| mysqlro.x4.3xlarge.1c | 24 cores, 96 GB | 30,000 | 50,000 | 500 |
| mysqlro.x8.3xlarge.1c | 24 cores, 192 GB | 48,000 | 50,000 | 500 |
| mysqlro.x2.4xlarge.1c | 32 cores, 64 GB | 32,000 | 60,000 | 625 |
| mysqlro.x4.4xlarge.1c | 32 cores, 128 GB | 40,000 | 60,000 | 625 |
| mysqlro.x8.4xlarge.1c | 32 cores, 256 GB | 64,000 | 60,000 | 625 |
| mysqlro.x2.13large.1c | 52 cores, 96 GB | 52,000 | 100,000 | 1,000 |
| mysqlro.x4.13large.1c | 52 cores, 192 GB | 130,000 | 100,000 | 1,000 |
| mysqlro.x8.13large.1c | 52 cores, 384 GB | 104,000 | 100,000 | 1,000 |
| mysqlro.x8.8xlarge.1c | 64 cores, 512 GB | 128,000 | 150,000 | 1,000 |
| mysqlro.x2.13xlarge.1c | 104 cores, 192 GB | 104,000 | 20,000 | 2,000 |
| mysqlro.x4.13xlarge.1c | 104 cores, 384 GB | 130,000 | 20,000 | 2,000 |
| mysqlro.x8.13xlarge.1c | 104 cores, 768 GB | 208,000 | 20,000 | 2,000 |
| mysqlro.x4.16xlarge.1c | 128 cores, 512 GB | 128,000 | 300,000 | 2,560 |