1.查看当前恢复区的路径
SQL>show parameter db_recovery_file_dest;
2.修改恢复区路径
SQL>alter system set db_recovery_file_dest='/home/new' scope=spfile;
3.重启数据库
SQL>shutdown immediate
SQL>startup
4.验证结果
SQL>show parameter db_recovery_file_dest;
RMAN>backup database;