磁带双工备份报报ora-19565错误

 

当我执行磁带备份时,报如下错误:

RMAN> backup as backupset device type sbt copies 2 incremental level 0 database;

Starting backup at 03-MAY-13

using channel ORA_SBT_TAPE_1

channel ORA_SBT_TAPE_1: starting incremental level 0 datafile backup set

channel ORA_SBT_TAPE_1: specifying datafile(s) in backup set

input datafile file number=00001 name=/oracle/app/oracle/oradata/sztech1/system01.dbf

input datafile file number=00002 name=/oracle/app/oracle/oradata/sztech1/sysaux01.dbf

input datafile file number=00005 name=/oracle/app/oracle/oradata/sztech1/example01.dbf

input datafile file number=00003 name=/oracle/app/oracle/oradata/sztech1/undotbs01.dbf

input datafile file number=00004 name=/oracle/app/oracle/oradata/sztech1/users01.dbf

RMAN-03009: failure of backup command on ORA_SBT_TAPE_1 channel at 05/03/2013 11:08:15

ORA-19565: BACKUP_TAPE_IO_SLAVES not enabled when duplexing to sequential devices

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

channel ORA_SBT_TAPE_1: starting incremental level 0 datafile backup set

channel ORA_SBT_TAPE_1: specifying datafile(s) in backup set

including current control file in backup set

including current SPFILE in backup set

RMAN-00571:

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

RMAN-00571:

RMAN-03009: failure of backup command on ORA_SBT_TAPE_1 channel at 05/03/2013 11:08:16

ORA-19565: BACKUP_TAPE_IO_SLAVES not enabled when duplexing to sequential devices

问题分析:

看到上面错误:ora-19565,BACKUP_TAPE_IO_SLAVES参数没有启用,查看一下:

SQL> show parameter backup_

NAME TYPE VALUE

 

backup_tape_io_slaves boolean FALSE

看来这个参数确实为false,修改成true

alter system set backup_tape_io_slaves =true scope=spfile;

startup force;

从新进行备份,成功,以下:

RMAN> backup as backupset device type sbt copies 2 incremental level 0 database;

Starting backup at 03-MAY-13

using target database control file instead of recovery catalog

allocated channel: ORA_SBT_TAPE_1

channel ORA_SBT_TAPE_1: SID=141 device type=SBT_TAPE

channel ORA_SBT_TAPE_1: Oracle Secure Backup

channel ORA_SBT_TAPE_1: starting incremental level 0 datafile backup set

channel ORA_SBT_TAPE_1: specifying datafile(s) in backup set

input datafile file number=00001 name=/oracle/app/oracle/oradata/sztech1/system01.dbf

input datafile file number=00002 name=/oracle/app/oracle/oradata/sztech1/sysaux01.dbf

input datafile file number=00005 name=/oracle/app/oracle/oradata/sztech1/example01.dbf

input datafile file number=00003 name=/oracle/app/oracle/oradata/sztech1/undotbs01.dbf

input datafile file number=00004 name=/oracle/app/oracle/oradata/sztech1/users01.dbf

channel ORA_SBT_TAPE_1: starting piece 1 at 03-MAY-13

channel ORA_SBT_TAPE_1: finished piece 1 at 03-MAY-13 with 2 copies and tag TAG20130503T111242

piece handle=0so8mu5a_1_1 comment=API Version 2.0,MMS Version 10.4.0.2

piece handle=0so8mu5a_1_2 comment=API Version 2.0,MMS Version 10.4.0.2

channel ORA_SBT_TAPE_1: backup set complete, elapsed time: 00:03:55

channel ORA_SBT_TAPE_1: starting incremental level 0 datafile backup set

channel ORA_SBT_TAPE_1: specifying datafile(s) in backup set

including current control file in backup set

including current SPFILE in backup set

channel ORA_SBT_TAPE_1: starting piece 1 at 03-MAY-13

channel ORA_SBT_TAPE_1: finished piece 1 at 03-MAY-13 with 2 copies and tag TAG20130503T111242

piece handle=0to8mucm_1_1 comment=API Version 2.0,MMS Version 10.4.0.2

piece handle=0to8mucm_1_2 comment=API Version 2.0,MMS Version 10.4.0.2

channel ORA_SBT_TAPE_1: backup set complete, elapsed time: 00:01:05

Finished backup at 03-MAY-13