backupRetentionPeriod
The number of days for which automated backups are retained. Setting this parameter to a positive number enables backups. Setting this parameter to 0
disables automated backups.
This setting doesn't apply to Amazon Aurora DB instances. The retention period for automated backups is managed by the DB cluster.
Default: 1
Constraints:
Must be a value from 0 to 35.
Can't be set to 0 if the DB instance is a source to read replicas.
Can't be set to 0 for an RDS Custom for Oracle DB instance.