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使用Rman的Plus archvielog选项简化数据库备份操作

王朝other·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

Oracle9i开始Rman提供plus archivelog选项,极大的简化了Rman备份的操作。

当你定义plus archivelog语句时,RMAN执行如下步骤的操作:

1。运行一个ALTER SYSTEM ARCHIVELOG CURRENT命令

2。运行BACKUP ARCHIVELOG ALL命令。注重假如备份优化被启用,RMAN只会备份未备份过的日志

3。备份BACKUP命令中定义的文件

4。运行ALTER SYSTEM ARCHIVELOG CURRENT命令

5。备份所有的剩下的归档日志

测试备份脚本:

backup database

format '/opt/oracle/orabak/full_%d_%T_%s'

plus archivelog

format '/opt/oracle/orabak/arch_%d_%T_%s'

delete all input;

测试日志:

[oracle@jumper oracle]$ rman target /

Recovery Manager: Release 9.2.0.4.0 - ProdUCtion

Copyright (c) 1995, 2002, Oracle Corporation. All rights reserved.

connected to target database: CONNER (DBID=3152029224)

RMAN> run {

2> backup database

3> format '/opt/oracle/orabak/full%d_%T_%s'

4> plus archivelog

5> format '/opt/oracle/orabak/arch_%d_%T_%s'

6> delete all input; }

Starting backup at 04-NOV-04

current log archived

using target database controlfile instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: sid=12 devtype=DISK

channel ORA_DISK_1: starting archive log backupset

channel ORA_DISK_1: specifying archive log(s) in backup set

input archive log thread=1 sequence=163 recid=6 stamp=541351580

channel ORA_DISK_1: starting piece 1 at 04-NOV-04

channel ORA_DISK_1: finished piece 1 at 04-NOV-04

piece handle=/opt/oracle/orabak/arch_CONNER_20041104_7 comment=NONE

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

channel ORA_DISK_1: deleting archive log(s)

archive log filename=/opt/oracle/oradata/conner/archive/1_163.dbf recid=6 stamp=541351580

Finished backup at 04-NOV-04

Starting backup at 04-NOV-04

using channel ORA_DISK_1

channel ORA_DISK_1: starting full datafile backupset

channel ORA_DISK_1: specifying datafile(s) in backupset

including current SPFILE in backupset

including current controlfile in backupset

input datafile fno=00004 name=/opt/oracle/oradata/conner/eygle01.dbf

input datafile fno=00001 name=/opt/oracle/oradata/conner/system01.dbf

input datafile fno=00002 name=/opt/oracle/oradata/conner/undotbs01.dbf

input datafile fno=00003 name=/opt/oracle/oradata/conner/users01.dbf

channel ORA_DISK_1: starting piece 1 at 04-NOV-04

aaaachannel ORA_DISK_1: finished piece 1 at 04-NOV-04

piece handle=/opt/oracle/orabak/full_CONNER_20041104_8 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:04:04

Finished backup at 04-NOV-04

Starting backup at 04-NOV-04

current log archived

using channel ORA_DISK_1

channel ORA_DISK_1: starting archive log backupset

channel ORA_DISK_1: specifying archive log(s) in backup set

input archive log thread=1 sequence=164 recid=7 stamp=541351832

channel ORA_DISK_1: starting piece 1 at 04-NOV-04

channel ORA_DISK_1: finished piece 1 at 04-NOV-04

piece handle=/opt/oracle/orabak/arch_CONNER_20041104_9 comment=NONE

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

channel ORA_DISK_1: deleting archive log(s)

archive log filename=/opt/oracle/oradata/conner/archive/1_164.dbf recid=7 stamp=541351832

Finished backup at 04-NOV-04

RMAN>

通过plus archivelog,简化了备份操作,同时确保需要的日志都被备份。

[oracle@jumper orabak]$ ls -l

total 751628

-rw-r----- 1 oracle dba 156160 Nov 4 15:26 arch_CONNER_20041104_7

-rw-r----- 1 oracle dba 60928 Nov 4 15:30 arch_CONNER_20041104_9

-rw-r----- 1 oracle dba 768679936 Nov 4 15:30 full_CONNER_20041104_8

本文作者:

eygle,Oracle技术关注者,来自中国最大的Oracle技术论坛itpub.

www.eygle.com是作者的个人站点.你可通过Guoqiang.Gai@gmail.com来联系作者.欢迎技术探讨交流以及链接交换.

原文出处:

http://www.eygle.com/ha/Use.Rman.Plus.Archivelog.Option.htm

 
 
 
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