rman备份报ORA-19809 ORA-19804

rman备份时报错信息：

ORA-19809: limit exceeded for recovery files

ORA-19804: cannot reclaim 52428800 bytes disk space from 2147483648 limit

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03009: failure of backup command on ORA_DISK_1 channel at 05/03/2022 10:35:27

ORA-19809: limit exceeded for recovery files

ORA-19804: cannot reclaim 52428800 bytes disk space from 2147483648 limit

问题是在db_recovery_file_dest_size 备份时没有足够的空间造成的

解决办法：

1：清理过期失效的备份，

2：增加recovery_file_dest_size参数值即可；

SQL> show parameter db_recover

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

db_recovery_file_dest                string      /oracle/flash_recovery_area

db_recovery_file_dest_size           big integer 2G

SQL> alter system set db_recovery_file_dest_size=4G scope=spfile;

System altered.

重启数据库