RMAN 备份案例-shell 脚本

RMAN 备份案例-shell 脚

通过shell 结合RMAN建立数据库的备份，可以简化数据库备份的工作，以下为一个备份案例：

系统环境：

操作系统：RedHat EL6

Oracle： Oracle 11gR2

    本方案结合RMAN的Catalog DB建立备份，通过Catalog DB可以很方便的存储RMAN的备份脚本，方便备份的调用。

备份案例：

1、删除obsolete bakcup script

------按照备份保留策略，删除recovery windows 15 天以上的备份（obsolete)

create global script global_del_obso comment 'A script for obsolete backup and delete it'

{

crosscheck archivelog all;

delete noprompt expired archivelog all;

allocate channel ch1 device type disk;

delete noprompt obsolete recovery window of 15 days;

release channel ch1;

}

2、backup controlfile script

------备份控制文件

create global script global_bkctl comment 'A script for backup control file'

{

allocate channel ch1 device type disk;

backup as compressed backupset

current controlfile reuse

format='/dsk4/backup/backupctl.ctl'

tag='bkctl';

release channel ch1;

}

3、backup archivelog script

-----备份归档日志

create global script global_arch comment "backup archivelog and then delete it" {

allocate channel ch1 device type disk;

allocate channel ch2 device type disk;

sql "alter system archive log current";

set limit channel ch1 readrate=10240;

set limit channel ch1 kbytes=4096000;

set limit channel ch2 readrate=10240;

set limit channel ch2 kbytes=4096000;

backup as compressed backupset

format='/dsk4/backup/arch_%d_%U'

tag='bkarch'

archivelog all delete input;

release channel ch1;

release channel ch2;

}

   对于数据文件建立增量备份

4、backup datafile script（level 0）

------增量备份 0级

create global script global_inc0 comment "backup database as incrmental level 0"{

execute global script global_del_obso;

allocate channel ch1 device type disk;

allocate channel ch2 device type disk;

set limit channel ch1 readrate=10240;

set limit channel ch1 kbytes=4096000;

set limit channel ch2 readrate=10240;

set limit channel ch2 kbytes=4096000;

backup as compressed backupset

incremental level 0 database

format='/dsk4/backup/inc0_%d_%U'

tag='inc0';

release channel ch1;

release channel ch2;

execute global script global_arch;

execute global script global_bkctl;

}

5、backup datafile script（level 1）

------差异备份 1级

create global script global_inc1 comment "backup database as incrmental level 1"{

execute global script global_del_obso;

allocate channel ch1 device type disk;

allocate channel ch2 device type disk;

set limit channel ch1 readrate=10240;

set limit channel ch1 kbytes=4096000;

set limit channel ch2 readrate=10240;

set limit channel ch2 kbytes=4096000;

backup as compressed backupset

incremental level 1 database

format='/dsk4/backup/inc1_%d_%U'

tag='inc1';

release channel ch1;

release channel ch2;

execute global script global_arch;

execute global script global_bkctl;

}

6、backup datafile script（level 1 cumulative）

----累积增量备份 1级

create global script global_inc1_cu comment "backup database as incrmental cumulative level 1"{

execute global script global_del_obso;

allocate channel ch1 device type disk;

allocate channel ch2 device type disk;

set limit channel ch1 readrate=10240;

set limit channel ch1 kbytes=4096000;

set limit channel ch2 readrate=10240;

set limit channel ch2 kbytes=4096000;

backup as compressed backupset

incremental  level 1 cumulative database

format='/dsk4/backup/inc1_%d_%U'

tag='inc1';

release channel ch1;

release channel ch2;

execute global script global_arch;

execute global script global_bkctl;

}

7、list scripts

------查看catalog 库里的备份脚本

RMAN> list script names;

List of Stored Scripts in Recovery Catalog

   Global Scripts

      Script Name

      Description

      -----------------------------------------------------------------------

      global_arch

      backup archivelog and then delete it

      global_bkctl

      A script for backup control file

      global_del_obso

      A script for obsolete backup and delete it

      global_inc0

      backup database as incrmental level 0

      global_inc1

      backup database as incrmental level 1

      global_inc1_cu

      backup database as incrmental cumulative level 1

RMAN>

8、test scripts

------测试执行备份脚本

run{

execute global script global_inc0;

execute global script global_inc1;

execute global script global_inc1_cu;

}

9、建立RMAN连接Tartget DB和Catalog DB脚本及备份脚本

1、连接 target and  catalog db

[oracle@rh6 script]$ cat connect.rcv

connect target sys/oracle@test1;

connect catalog rman/rman@cuug;

2、连接到target and catalog db ，执行备份

[oracle@rh6 script]$ cat inc0.rcv

@@/home/oracle/script/connect.rcv

run{

execute global script global_inc0;

}

[oracle@rh6 script]$ cat inc1.rcv

@@/home/oracle/script/connect.rcv

run{

execute global script global_inc1;

}

[oracle@rh6 script]$ cat inc1_cu.rcv

@@/home/oracle/script/connect.rcv

run{

execute global script global_inc1_cu;

}

[oracle@rh6 script]$

10、shell 备份脚本

[oracle@rh6 script]$ cat inc0.sh

nohup $ORACLE_HOME/bin/rman cmdfile=/home/oracle/script/inc0.rcv log=/home/oracle/script/inc0.log append &

[oracle@rh6 script]$ cat inc1.sh

nohup $ORACLE_HOME/bin/rman cmdfile=/home/oracle/script/inc1.rcv log=/home/oracle/script/inc1.log append &

[oracle@rh6 script]$ cat inc1_cu.sh

nohup $ORACLE_HOME/bin/rman cmdfile=/home/oracle/script/inc1_cu.rcv log=/home/oracle/script/inc1_cu.log append &

11、crontab 备份计划

[oracle@rh6 script]$ crontab -l

0 0 * * 0 sh /home/oracle/script/inc0.sh

0 0 * * 1 sh /home/oracle/script/inc1.sh

0 0 * * 2 sh /home/oracle/script/inc1.sh

0 0 * * 3 sh /home/oracle/script/inc1.sh

0 0 * * 4 sh /home/oracle/script/inc1_cu.sh

0 0 * * 5 sh /home/oracle/script/inc1.sh

0 0 * * 6 sh /home/oracle/script/inc1.sh

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