Database Instance Specification
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 |
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