备份遇到RMAN-03009,ORA-19809,ORA-19804

今天做实验想备份全库，随手输入backup database发现RMAN居然报错

RMAN> backup database;

Starting backup at 09-JUL-15

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=47 instance=racdb0071 device type=DISK

channel ORA_DISK_1: starting full datafile backup set

channel ORA_DISK_1: specifying datafile(s) in backup set

input datafile file number=00002 name=+DATA0/racdb007/datafile/sysaux.257.870219453

input datafile file number=00001 name=+DATA0/racdb007/datafile/system.256.870219453

input datafile file number=00003 name=+DATA0/racdb007/datafile/undotbs1.258.870219453

input datafile file number=00005 name=+DATA0/racdb007/datafile/undotbs2.261.870219715

input datafile file number=00006 name=+DATA/racdb007/datafile/mcontactbiz_data.289.870977391

input datafile file number=00007 name=+DATA/racdb007/datafile/t1.574.876421851

input datafile file number=00008 name=+DATA/racdb007/datafile/cat_tablespace.674.878856551

input datafile file number=00004 name=+DATA0/racdb007/datafile/users.259.870219453

channel ORA_DISK_1: starting piece 1 at 09-JUL-15

RMAN-03009: failure of backup command on ORA_DISK_1 channel at 07/09/2015 23:46:14

ORA-19809: limit exceeded for recovery files

ORA-19804: cannot reclaim 68157440 bytes disk space from 4558159872 limit

continuing other job steps, job failed will not be re-run

channel ORA_DISK_1: starting full datafile backup set

channel ORA_DISK_1: specifying datafile(s) in backup set

including current control file in backup set

including current SPFILE in backup set

channel ORA_DISK_1: starting piece 1 at 09-JUL-15

channel ORA_DISK_1: finished piece 1 at 09-JUL-15

piece handle=+DATA/racdb007/backupset/2015_07_09/ncsnf0_tag20150709t234428_0.893.884648779 tag=TAG20150709T234428 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03

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

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

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

RMAN-03009: failure of backup command on ORA_DISK_1 channel at 07/09/2015 23:46:14

ORA-19809: limit exceeded for recovery files

ORA-19804: cannot reclaim 68157440 bytes disk space from 4558159872 limit

后来经过三哥指点，原来ORACLE通过RMAN备份的时候不指定format会默认备份到db_recovery_file_dest中

然后果断使用

RMAN> backup database format '+DATA/racdb007/BACKUPSET/%u.bak';

Starting backup at 10-JUL-15

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=67 instance=racdb0071 device type=DISK

channel ORA_DISK_1: starting full datafile backup set

channel ORA_DISK_1: specifying datafile(s) in backup set

input datafile file number=00002 name=+DATA0/racdb007/datafile/sysaux.257.870219453

input datafile file number=00001 name=+DATA0/racdb007/datafile/system.256.870219453

input datafile file number=00003 name=+DATA0/racdb007/datafile/undotbs1.258.870219453

input datafile file number=00005 name=+DATA0/racdb007/datafile/undotbs2.261.870219715

input datafile file number=00006 name=+DATA/racdb007/datafile/mcontactbiz_data.289.870977391

input datafile file number=00007 name=+DATA/racdb007/datafile/t1.574.876421851

input datafile file number=00008 name=+DATA/racdb007/datafile/cat_tablespace.674.878856551

input datafile file number=00004 name=+DATA0/racdb007/datafile/users.259.870219453

channel ORA_DISK_1: starting piece 1 at 10-JUL-15

channel ORA_DISK_1: finished piece 1 at 10-JUL-15

piece handle=+DATA/racdb007/backupset/0gqblc8v.bak tag=TAG20150710T001110 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:02:25

channel ORA_DISK_1: starting full datafile backup set

channel ORA_DISK_1: specifying datafile(s) in backup set

including current control file in backup set

including current SPFILE in backup set

channel ORA_DISK_1: starting piece 1 at 10-JUL-15

channel ORA_DISK_1: finished piece 1 at 10-JUL-15

piece handle=+DATA/racdb007/backupset/0hqblcdh.bak tag=TAG20150710T001110 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03

Finished backup at 10-JUL-15

数据库备份成功了