RMAN备份错误而创建完整和增量备份

Question

我们当配置RMAN采取我们看到在日志下面的错误备份Windows服务器&我们的Oracle实例运行，

错误详细信息：

channel ch1: starting piece 1 at 07-MAY-17 
channel ch1: finished piece 1 at 07-MAY-17 
piece handle=\\backup_share\FULL_db01_20170507.BAK tag=COMPLETE_BACKUP comment=NONE 
channel ch1: backup set complete, elapsed time: 02:10:37 
channel ch1: starting incremental level 0 datafile backup set 
channel ch1: specifying datafile(s) in backup set 
including current control file in backup set 
including current SPFILE in backup set 
channel ch1: starting piece 1 at 07-MAY-17 
released channel: ch1 
RMAN-00571: =========================================================== 
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== 
RMAN-00571: =========================================================== 
RMAN-03009: failure of backup command on ch1 channel at 05/07/2017 23:10:45 
ORA-19504: failed to create file "\\backup_share\FULL_db01_20170507.BAK" 
ORA-27038: created file already exists 
OSD-04010: <create> option specified, file already exists 

RMAN命令脚本：

run{ 
Allocate channel ch1 type disk format '\\backup_share\full_%d_%T.bak'; 
Backup incremental level=0 database tag='complete_backup'; 
Release channel ch1; 
Allocate channel t1 type disk format '\\backup_share\ctrl_%d_%T'; 
Backup current controlfile; 
Release channel t1; 
} 

尝试进行增量备份时，我看到了同样的日志记录。有人可以帮我解决这个问题吗？

Answer 1

[oracle@orcluat ~]$ oerr ora 27038 
27038, 00000, "created file already exists" 
// *Cause: trying to create a database file, but file by that name already 
//   exists 
// *Action: verify that name is correct, specify reuse if necessary 

%d格式指定数据库的名称和%T指定这种格式公历的年，月，日：YYYYMMDD。它也反映在您的备份文件名FULL_db01_20170507.BAK中。可能有同名的文件。

最好使用%U以指定系统生成的唯一文件名的文件名格式。

文档：

formatSpec