--- title: "Cloud DB for MySQL glossary" slug: "clouddbformysql-glossary" updated: 2026-09-17T09:25:07Z published: 2026-09-17T09:25:07Z canonical: "guide.ncloud-docs.com/clouddbformysql-glossary" stale: true --- > ## Documentation Index > Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt > Use this file to discover all available pages before exploring further. # Cloud DB for MySQL glossary Available in Classic and VPC You must know some terms to use Cloud DB for MySQL. Their descriptions are as follows: ### Backup Feature of Cloud DB for MySQL to view backup information set for each service to keep your database data of subscribing users and perform restoration ### DB Service Group name for MySQL Server by roles ### Event Feature of Cloud DB for MySQL to collect the occurred events in MySQL Server and view their history ### Master Main server with the high availability feature being used ### Monitoring Features of Cloud DB for MySQL to view server performance and the operating system related to the running MySQL Server and monitoring information related to the query execution ### MySQL Server DB Server provided in cloud environment by installing MySQL with optimized settings after long-time verification by NAVER service ### Recovery Read-only server restored through the Backup feature ### Role Stand Alone, Master, Standby Master, Slave, Recovery as 5 roles of MySQL Server ### Slave Addible read-only server for read load balancing when using the high availability feature ### Stand Alone Main server if the high availability feature is not being used ### Standby Master Convertible Standby server to the new Master upon Failover when using the high availability feature Note For more information on terms, see [Glossary](https://www.ncloud.com/guideCenter/glossary) on the NAVER Cloud Platform portal.