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TencentDB for PostgreSQL

ドキュメントTencentDB for PostgreSQLBillingInstance Type and Specification

Instance Type and Specification

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最終更新日: 2026-06-09 17:41:14
A database instance is a database environment that runs independently in Tencent Cloud. A database instance can contain multiple databases created by users and can be accessed using the same tools and applications as a standalone database instance.

Instance Types

TencentDB for PostgreSQL provides the following two types of database instances:
Instance Type
Definition
Architecture
Visible in Instance List or Not
Function
Primary Instance
Instance that can read and write
High-Availability Edition
Yes
The primary instance can mount read-only instances to implement the read/write splitting feature.
Read-only instances
Instance that provides read-only functionality
Single-node read-only
Yes
A read-only instance cannot exist independently. It must belong to a primary instance, with its sole data source being data synchronized from the primary instance. It can only reside in the same region as the primary instance. By default, a single primary instance is allowed to create six read-only instances.

Related Information

For the creation operations and considerations of read-only instances, see Create Read-Only Instance.
For creating and configuring a read-only instance RO group, see Manage Read-Only Instance RO Group.
Note:
When the actual used capacity of an instance exceeds its purchased capacity, the instance is automatically locked. After being locked, the instance supports only read operations and cannot accept write operations. Please configure capacity alarms.

Instance Supported Specifications

Edition
Version
Specification Type
CPU and Memory
Disk Capacity
Maximum Number of Connections
Maximum IOPS
Dual-machine high availability (one primary and one secondary) instance, read-only instance
11,12,13,14,15,16,17,18
General - local high-performance SSD
1core 2GiB
10GB - 3000GB
2048
1200
2core 4GiB
10GB - 3000GB
2048
4000
2core 6GiB
10GB - 3000GB
2048
6000
4core 8GiB
10GB - 3000GB
2048
8000
4core 16GiB
10GB - 4000GB
2048
14000
6core 24GiB
10GB - 4000GB
2048
16000
8core 16GiB
10GB - 4000GB
2048
20000
8core 32GiB
10GB - 4000GB
4000
28000
8core 48GiB
10GB - 4000GB
4500
30000
8core 64GiB
10GB - 4500GB
5500
36000
12core 24GiB
10GB - 8000GB
2048
36000
12core 64GiB
10GB - 8000GB
5500
38000
16core 32GiB
10GB - 8000GB
4000
32000
16core 96GiB
10GB - 8000GB
8000
40000
20core 128GiB
10GB - 8000GB
10000
40000
24core 48GiB
10GB - 8000GB
4500
32000
24core 192GiB
10GB - 8000GB
12000
60000
28core 240GiB
10GB - 8000GB
13000
60000
32core 64GiB
10GB - 8000GB
5500
60000
32core 128GiB
10GB - 8000GB
13000
72000
48core 480GiB
10GB - 8000GB
22000
120000
64core 256GiB
10GB - 8000GB
13000
120000
64core 384GiB
10GB - 8000GB
20000
150000
64core 512GiB
10GB - 8000GB
22000
150000
90core 720GiB
10GB - 8000GB
36000
150000
128core 720GiB
10GB - 8000GB
36000
150000
156core 960GiB
10GB - 8000GB
40000
150000
Note:
Shanghai Zone 2, Shanghai Zone 3, Shanghai Zone 4, Shanghai Zone 5, Shanghai Zone 6, Shanghai Zone 7, Shanghai Zone 8, Guangzhou Zone 4, Guangzhou Zone 6, and Guangzhou Zone 7 support larger storage specifications: the 48-core 480GiB configuration supports a maximum disk capacity of 16,000 GB.
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