Hi @helena Matos ,
>also how can the audit logs be cleaned?
You can delete the old audit file.
If you do not specify parameters such as MAXSIZE, MAX_FILES or MAX_ROLLOVER_FILES when creating a file target server audit, then the default attribute is UNLIMITED. In the case of using the default parameters, each time you restart the SQL Server service or disable/re-enable the server audit, a new audit file will be generated. It is recommended that you modify the appropriate parameters of this server audit to generate the limited audit files, which is more flexible for saving and deleting.