TDSQL for MySQL supports full backup and incremental backup.
You can set the backup retention period for full backups, which is seven days by default.
Incremental backup is implemented based on binlogs, which are generated in real time. The binlogs use a certain amount of disk capacity, and are periodically uploaded to the TencentDB backup system.
TDSQL for MySQL's backup feature will be commercialized in June 2022. You will be able to set more backup and log storage days then.