RDS （Relational Database Service）is a stable, reliable, and scalable online database service. YiSu CloudDB RDS supports the MySQL, SQL Server, PostgreSQL,PPAS (compatible with Oracle) and MariaDB TX database engines. YiSu CloudDB RDS provides a portfolio of solutions for disaster recovery, backup, restoration, monitoring, and migration to facilitate database O&M.
RDS for MySQL provides basic features, such as instance management, account management, database management, backup and restoration, control access, Transparent Data Encryption (TDE), and data migration.
Instance: An RDS instance is a database process that consumes independent physical memory resources. You can specify a specific memory size, disk capacity, and database type for an RDS instance. The performance of an RDS instance varies based on the specified memory size. After an RDS instance is created, you can change its specifications or delete the instance.
Database: A database is a logical unit that is created on an RDS instance. One RDS instance can have multiple databases. Each database must have a unique name on the RDS instance where it is created.
Region and zone: Each region is a physical data center. Each region contains a number of isolated locations that are known as zones. Each zone has an independent power supply and network.