Storage Type | Description | Applicable Instance Architecture | Application Scenario |
Premium local SSD | It is a high I/O local disk storage type, which has an excellent I/O throughput. A 90-core 720 GB MEM TencentDB for SQL Server instance can sustain up to 4.5 million TPM. | Two-node (formerly High Availability/Cluster Edition) | Business scenarios that have extremely high requirements for storage I/O performance and high-availability architecture at the application layer, such as online games, ecommerce, ERP software services, video live streaming, and media. |
Balanced SSD cloud disk | It is an entry-level all-flash block storage product provided by Tencent Cloud and highly cost-effective. | Two-node (formerly High Availability/Cluster Edition) Single-node (formerly Basic Edition) | Medium applications with high requirements for data reliability and standard requirements for performance, such as web/app servers, business logical processing, KV services, as well as basic database services. |
Enhanced SSD cloud disk | It is based on Tencent Cloud's latest storage engine, NVMe SSD storage media and the latest network infrastructure. It employs a three-copy distributed mechanism to provide high-performance storage with low latency, high random IOPS, high throughput I/O, and data availability up to 99.9999999% (nine nines). | Two-node (formerly High Availability/Cluster Edition) Single-node (formerly Basic Edition) | Business scenarios that have extremely high requirements for storage I/O performance and high-availability architecture at the application layer, such as online games, ecommerce, ERP software services, and video live streaming. |
SSD cloud disk | All-flash cloud disk storage type with NVMe SSD as the storage media. It adopts a three-copy distributed storage mechanism to provide low-latency and high-throughput I/O capabilities with a high random IOPS and 99.9999999% (nine nines) data security. | Single-node (formerly Basic Edition) | Application scenarios such as I/O-intensive applications and small and medium relational databases. |
Premium cloud disk | It is a hybrid storage type. It adopts the cache mechanism to provide a high-performance SSD-like storage, and employs a three-copy distributed mechanism to ensure data reliability. | Single-node (formerly Basic Edition) | Small and medium application scenarios that require high data reliability and moderate performance, such as web/app servers, business logic processing, and small and medium websites. |
Storage Type | I/O Performance | Maximum Disk Capacity (GB) |
Premium local SSD | Low I/O latency and higher I/O throughput than cloud disk | 6,000 |
Balanced SSD cloud disk | Medium I/O throughput | 32000 |
Enhanced SSD cloud disk | Ultra high I/O throughput | 32000 |
SSD cloud disk | Excellent I/O throughput | 32000 |
Premium cloud disk | Stable I/O performance | 32000 |
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