The physical data in a database is stored on storage devices such as hard disk drives (HDDs), solid-state drives (SSDs), or other forms of persistent storage media. These storage devices can be part of local servers, network-attached storage (NAS), or storage area networks (SANs). The actual data files—such as data pages, index files, log files, and configuration files—are organized and managed by the database management system (DBMS) to ensure efficient access, integrity, and durability.
For example, in a relational database like TencentDB for MySQL, when you create tables and insert records, the DBMS translates those logical structures into physical files stored on disk. These include data files (.ibd or .MYD), index files (.ibd or .MYI), and transaction logs (like redo logs or binlogs), all of which reside on the underlying storage infrastructure. The DBMS handles how these files are read from and written to the physical storage, abstracting the complexity for users and applications.
Tencent Cloud offers a range of reliable and high-performance database services, including TencentDB for MySQL, TencentDB for PostgreSQL, and Tencent Distributed SQL, all backed by robust storage solutions designed for security, scalability, and high availability. You can learn more about these services at {https://www.tencentcloud.com/}.