用Rman的Plus archvielog选项简化数据库备份

用Rman的Plus archvielog选项简化数据库备份
 
作者: eygle | English Version 【转载时请以超链接形式标明文章 出处和作者信息及 本声明】
链接: http://www.eygle.com/archives/2004/11/use_rman_plusarchivelog_option.html

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使用RMAN的备份及恢复一例-丢失所有控制文件

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。注意如果备份优化被启用,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      

 

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