oracle全量、增量备份

采用0221222增量备份策略,7天一个轮回

也就是周日0级备份，周1 2 4 5 6 采用2级增量备份，周3采用1级增量备份

打开控制文件自动备份

CONFIGURE CONTROLFILE AUTOBACKUP ON; 

配置控制文件备份路径

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO ‘/file/backup/rman/controlfile_%F‘; 

将过期天数设为7天

RMAN> CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS; 

---全备

vim rman_bak_level0.sh    

#! /bin/bash  

export ORACLE_BASE=/u01/oracle 

export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1 

export PATH=$ORACLE_HOME/bin:$PATH 

export ORACLE_SID=neal    --数据库ORACLE_SID 

export NLS_LANG=‘AMERICAN_AMERICA.ZHS16GBK‘   --字符集 

rman target / <<EOF    run{    allocate channel d1 type disk;   --分配通道d1，类型备份到磁盘 

allocate channel d2 type disk;   --分配通道d2，类型备份到磁盘 

backup incremental level 0 database format ‘/file/backup/rman/level0_%d_%s_%p_%u.bkp‘;   --备份级别、输出格式、路径 

sql ‘alter system archive log current‘;    --对当前redo日志进行归档 

backup archivelog all delete input format ‘/file/backup/rman/archivelog_%d_%s_%p_%u.bkp‘;  --备份归档日志并删除 

crosscheck backup;   --检查备份 

delete noprompt obsolete;  --静默删除过期备份 

release channel d1;  --释放通道d1 

release channel d2;  --释放通道d2  }   

EOF  

---0级备份脚本

vim rman_bak_level0.sh 

#! /bin/bash 

export ORACLE_BASE=/u01/oracle 

export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1 

export PATH=$ORACLE_HOME/bin:$PATH 

export ORACLE_SID=neal 

export NLS_LANG=‘AMERICAN_AMERICA.ZHS16GBK‘ 

rman target / <<EOF 

run{  allocate channel d1 type disk; 

allocate channel d2 type disk; 

backup incremental level 0 database format ‘/file/backup/rman/level0_%d_%s_%p_%u.bkp‘; 

sql ‘alter system archive log current‘;  backup archivelog all delete input format ‘/file/backup/rman/archivelog_%d_%s_%p_%u.bkp‘; 

crosscheck backup; 

delete noprompt obsolete; 

release channel d1; 

release channel d2;  } 

EOF 

--1级备份脚本

vim rman_bak_level1.sh 

#! /bin/bash 

export ORACLE_BASE=/u01/oracle 

export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1 

export PATH=$ORACLE_HOME/bin:$PATH 

export ORACLE_SID=neal 

export NLS_LANG=‘AMERICAN_AMERICA.ZHS16GBK‘ 

rman target / <<EOF 

run{  allocate channel d1 type disk; 

allocate channel d2 type disk; 

backup incremental level 1 database format ‘/file/backup/rman/level1_%d_%s_%p_%u.bkp‘; 

sql ‘alter system archive log current‘;  backup archivelog all delete input format ‘/file/backup/rman/archivelog_%d_%s_%p_%u.bkp‘; 

crosscheck backup; 

delete noprompt obsolete; 

release channel d1; 

release channel d2;  } 

EOF 

--2级备份脚本

vim rman_bak_level2.sh 

#! /bin/bash  export ORACLE_SID=neal 

export NLS_LANG=‘AMERICAN_AMERICA.ZHS16GBK‘ 

/u01/oracle/product/11.2.0/db_1/bin/rman target / <<EOF 

run{  allocate channel d1 type disk; 

allocate channel d2 type disk;  backup incremental level 2 database format ‘/file/backup/rman/level2_%d_%s_%p_%u.bkp‘; 

sql ‘alter system archive log current‘; 

backup archivelog all delete input format ‘/file/backup/rman/archivelog_%d_%s_%p_%u.bkp‘; 

crosscheck backup; 

delete noprompt obsolete; 

release channel d1; 

release channel d2;  } 

EOF 

--加入到crontab中

crontab -e 

#周日0级备份  00 23 * * 0 /server/scripts/rman_bak_level0.sh 

#周一、二、四、五、六2级增量备份  00 23 * * 1,2,4,5,6 /server/scripts/rman_bak_level2.sh 

#周三1级增量备份  00 23 * * 3 /server/scripts/rman_bak_level1.sh