rier_interval              1800                 Flashback barrier interval in seconds
　　_flashback_standby_barrier_interval      1800                 Flashback standby barrier interval in seconds
　　_flashback_fuzzy_barrier                 TRUE                 Use flashback fuzzy barrier
　　_flashback_log_size                      1000                 Flashback log size
　　_flashback_log_min_size                  100                  Minimum flashback log size
　　NAME                                     VALUE                PDESC
　　—————————————- ——————– ————————————————–
　　_flashback_copy_latches                  10                   Number of flashback copy latches
　　_flashback_n_log_per_thread              128                  Desired number of flashback logs per flashback thr
　　_flashback_max_n_log_per_thread          2048                 Maximum number of flashback logs per flashback thr
　　_flashback_generation_buffer_size        134193152            flashback generation buffer size
　　_flashback_max_log_size                  0                    Maximum flashback log size in bytes (OS limit)
　　_flashback_log_io_error_behavior   &