使用RMAN进行排除表空间备份

核心提示：在RMAN的备份中，可以通过Exclude命令排除某些不需要备份的表空间，使用RMAN进行排除表空间备份，这样可以缩减备份的容量，对备份进行适当优化和调整， 排除某个表空间可以使用类似如下命令：configure exclude for tablespace users;其设置可以在RMAN中通过show exclud

在RMAN的备份中，可以通过Exclude命令排除某些不需要备份的表空间。

这样可以缩减备份的容量，对备份进行适当优化和调整。

排除某个表空间可以使用类似如下命令：

configure exclude for tablespace users;

其设置可以在RMAN中通过show exclude命令来查看。

如果将来想临时增加排除表空间的备份，可以通过以下命令实现：

backup database noexclude;

如果想取消排除设置则可以使用如下命令：

CONFIGURE EXCLUDE FOR TABLESPACE users CLEAR;

此外常用的排除备份命令还有：

BACKUP DATABASE SKIP READONLY, SKIP OFFLINE;

以下是一个简单的测试过程。

执行备份：

[oracle@test126 udump]$ rman target /Recovery Manager: Release 10.2.0.1.0 - Production on Mon Oct 9 06:47:19 2006
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: EYGLE (DBID=2590148133)
RMAN> configure exclude for tablespace users;
using target database control file instead of recovery catalog
tablespace USERS will be excluded from future whole database backups
new RMAN configuration parameters are successfully stored
RMAN> backup full database;
Starting backup at 09-OCT-06
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=527 devtype=DISK
file 4 is excluded from whole database backup
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=/opt/oracle/oradata/eygle/system01.dbf
input datafile fno=00003 name=/opt/oracle/oradata/eygle/sysaux01.dbf
input datafile fno=00002 name=/opt/oracle/oradata/eygle/undotbs01.dbf
channel ORA_DISK_1: starting piece 1 at 09-OCT-06
channel ORA_DISK_1: finished piece 1 at 09-OCT-06
piece handle=/opt/oracle/flash_recovery_area/EYGLE/backupset/
2006_10_09/o1_mf_nnndf_TAG20061009T070612_2lm135od_.bkp tag=TAG20061009T070612 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:48
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current control file in backupset
channel ORA_DISK_1: starting piece 1 at 09-OCT-06
channel ORA_DISK_1: finished piece 1 at 09-OCT-06
piece handle=/opt/oracle/flash_recovery_area/EYGLE/backupset/
2006_10_09/o1_mf_ncnnf_TAG20061009T070612_2lm14ppc_.bkp tag=TAG20061009T070612 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
Finished backup at 09-OCT-06
RMAN> exit
Recovery Manager complete.