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DocumentationTencentDB for MySQLProduct IntroductionDatabase InstanceDatabase Instance Specification

Database Instance Specification

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Last updated: 2025-08-15 10:03:17
This document introduces the instance specifications of TencentDB for MySQL, providing you with a comprehensive understanding of the supported specifications for MySQL instances. You may view this document for detailed configurations of each specification, or visit the purchase page to query the latest supported specifications.

Cluster Edition (Cloud Disk Edition)

For specifications of the Cluster Edition (cloud disk edition) instances, see this table.
Isolation Policy
CPU and Memory
Standard Type
2-core 4,000 MB
2-core 8,000 MB
2-core 16,000 MB
4-core 8,000 MB
4-core 16,000 MB
4-core 32,000 MB
8-core 16,000 MB
8-core 32,000 MB
8-core 64,000 MB
16-core 32,000 MB
16-core 64,000 MB
16-core 128,000 MB
Enhanced Type
2-core 4,000 MB
2-core 8,000 MB
2-core 16,000 MB
4-core 8,000 MB
4-core 16,000 MB
4-core 32,000 MB
8-core 16,000 MB
8-core 32,000 MB
8-core 64,000 MB
16-core 32,000 MB
16-core 64,000 MB
16-core 128,000 MB
32-core 64,000 MB
32-core 128,000 MB
32-core 256,000 MB
48-core 128,000 MB
48-core 192,000 MB
64-core 128,000 MB
64-core 256,000 MB
80-core 160,000 MB
80-core 320,000 MB
96-core 192,000 MB
96-core 384,000 MB
112-core 224,000 MB
112-core 448,000 MB
128-core 256,000 MB
128-core 512,000 MB
144-core 288,000 MB
144-core 576,000 MB
160-core 320,000 MB
160-core 640,000 MB
176-core 352,000 MB
176-core 704,000 MB
192-core 384,000 MB
192-core 768,000 MB
384-core 768,000 MB
384-core 1,536,000 MB

General and Exclusive Two-Node/Three-Node (Local SSD) Instances

The following table lists the specifications of source instances (two-node/three-node), read-only instances, and disaster recovery instances.
Note:
The storage space cap of an instance specification may vary by region as displayed on the purchase page.
Isolation Policy
CPU and Memory
Maximum IOPS
Storage Space
General
1-core 1000 MB
1200
25GB - 3000GB
1-core 2000 MB
2000
2-core 4000 MB
4000
4-core 8000 MB
8000
4-core 16000 MB
14000
25GB - 4000GB
8-core 16000 MB
20000
8-core 32000 MB
28000
16-core 32000 MB
32000
16-core 64000 MB
40000
16-core 96000 MB
40000
16-core 128000 MB
40000
25GB - 6000GB
24-core 192000 MB
60000
25GB - 6000GB
24-core 244000 MB
60000
25GB - 8000GB
32-core 256000 MB
80000
48-core 488000 MB
120000
25GB - 12000GB
80-core 690000 MB
140000
Dedicated
2-core 16000 MB
8000
25GB - 4000GB
4-core 16000 MB
10000
4-core 24000 MB
13000
4-core 32000 MB
16000
8-core 32000 MB
32000
8-core 48000 MB
36000
8-core 64000 MB
40000
12-core 48000 MB
36000
25GB - 8000GB
12-core 72000 MB
40000
12-core 96000 MB
48000
16-core 64000 MB
60000
16-core 96000 MB
60000
16-core 128000 MB
60000
24-core 96000 MB
72000
24-core 144000 MB
76000
24-core 192000 MB
80000
32-core 128000 MB
80000
32-core 192000 MB
90000
32-core 256000 MB
100000
48-core 192000 MB
120000
25GB - 10000GB
48-core 288000 MB
140000
48-core 384000 MB
140000
64-core 256000 MB
150000
64-core 384000 MB
150000
64-core 512000 MB
150000
25GB - 12000GB
90-core 720000 MB
150000

Economical Two-Node (Local SSD) Instances

See this table for the specifications of two-node economical primary instances and read-only instances.
Type
CPU and Memory
Maximum IOPS
Disk
Economical
1-core 2,000 MB
2000
50GB
2-core 4,000 MB
4000
100GB
4-core 8,000 MB
8000
150GB
8-core 16,000 MB
20000
200GB

Single-node (SSD cloud disk)

Isolation policy
CPU and Memory
IOPS performance
Throughput performance
Storage capacity
Basic
1-core 1000 MB
Random IOPS = min{1800 + 30 × capacity (GB), 26000} Maximum IOPS: 26000
Throughput = min{120 + 0.2 × capacity (GB), 260} Maximum Throughput (MB/s): 260 MB/s
20GB - 32000GB
1-core 2000 MB
2-core 4000 MB
2-core 8000 MB
4-core 8000 MB
4-core 16000 MB
8-core 16000 MB
8-core 32000 MB

Single-node (Enhanced SSD cloud disk)

Isolation policy
CPU and Memory
IOPS performance
Throughput performance
Storage capacity
Basic
1-core 1000 MB
Random IOPS = min{1800 + 50 × capacity (GB), 50000} Maximum IOPS: 50000
Throughput = min{120 + 0.5 × capacity (GB), 350} Maximum Throughput (MB/s): 350 MB/s
20GB - 32000GB
1-core 2000 MB
2-core 4000 MB
2-core 8000 MB
4-core 8000 MB
4-core 16000 MB
8-core 16000 MB
8-core 32000 MB

Read-Only Instances (LibraDB Engine)

Instance Type
Compute Node Specifications
(CPU and Memory)
Maximum Storage Capacity
General
4-core 16 GB
7TB
General
8-core 32 GB
7TB
General
16-core 64 GB
15TB
General
24-core 96 GB
15TB
General
32-core 128 GB
15TB
General
48-core 192 GB
15TB
General
64-core 256 GB
15TB
General
96-core 384 GB
15TB
General
128-core 512 GB
15TB
Previous Topic: Database Instance TypesNext Topic: Database Instance Replication

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