Logging for Flashback Database with Guaranteed Restore Points DefinedIf you enable Flashback Database and define one or more guaranteed restore points, then the database performs normal flashback logging. In this case, the recovery area retains the flashback logs required to flash back to any arbitrary time between the present and the earliest currently defined guaranteed restore point. Flashback logs are not deleted in response to space pressure if they are required to satisfy the guarantee.Flashback logging causes some performance overhead. Depending upon the pattern of activity on your database, it can also cause significant space pressure in the fast recovery area. Thus, you should monitor space used in the fast recovery area. Caution:If no files are eligible for deletion from the fast recovery area because of the requirements imposed by your retention policy and the guaranteed restore point,then the database performs as if it has encountered a disk full condition. In many circumstances, this causes your database to halt.