Flash Area Full - Actions

I have seen some recommendations in the Oracle Docs about what to do if the FRA is full. For example I have this config also: CONFIGURE ARCHIVELOG DELETION POLICY TO BACKED UP 1 TIMES TO 'SBT_TAPE'; The Databases have Dataguard and RAC. Oracle says: 1. Make more disk space - I cannot BACKUP RECOVERY AREA - I am interrested in this option. What does it that is not the same as the standard full backup where FRA also gets cleaned? Is it faster? I see it deletes the flashback logs, maybe I need them? If you use some other alternatives, I would be much appreciated. Thanks in advance.