The use cases of CBS include de-localization, analysis of massive amounts of data and core databases.
TencentDB is the general term for the highly reliable, highly available and automatically scalable cloud database services provided by Tencent Cloud.
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COS provides large scale web API storage services where you can call HTTP Restful APIs to upload, download and manage data. CFS can be used in combination with services such as CVM, TKE, and BatchCompute to provide scalable high-performance shared storage for multiple compute nodes. CBS provides a persistent block storage service for CVM. The services required for the high availability for the data layer includes CBS, CFS, COS and TencentDB. For cost optimization, you can design different storage solutions for different data storage classes and select low cost Tencent Cloud services while guaranteeing availability and reliability. Data consistency includes multi-replica data sync and primary and secondary replication. You can also design a disaster recovery architecture for the data layer through read/write separation, redundancy or backup. To guarantee reliability and availability, you can use mature third party commercial services to implement data storage and guarantee reliability. Data can also be categorized according to the data access frequency, with priority given to hot data to ensure its availability, and cold data stored in the cold backup center or archived. With document data stored according to the file system hierarchy, file or image object call types stored through COS, and relational data stored in databases. Data at the data layer can be categorized according to the format and call method. Data that needs to be stored at the data layer includes user data, product data, order data, transaction data, IM data and other types of data. Guaranteeing the availability and reliability of the data, ensuring data consistency for distributed data storage and reducing costs while ensuring the secure and reliable storage of data. Some of the considerations for the high availability of the data layer include the data sources, what data needs to be stored. High availability design for the data layer, and designing the data layer based on Tencent Cloud services. In this section, we'll cover challenges faced by the high availability of the data layer. Let's move on to section 6, building high availability architecture for the data layer.
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