linux下rman简单的备份策略及计划任务

本次演示的是rman备份 及相应的计划任务

RMAN备份策略

总体策略为 可以恢复到10天内的数据， 周三和周六 为0级备份， 归档日志每天备份

--下面为一些备份策略配置：

CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 10 DAYS; --恢复10天内数据的rman备份

CONFIGURE CONTROLFILE AUTOBACKUP ON; --控制文件自动备份

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/datarman/rmanbak/controlfile/%F'; --控制文件自动目录

CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/datarman/rmanbak/controlfile/snapcf_emoss2.f'; --控制文件快照

--备份的路径如下：

--归档文件备份路径： /datarman/rmanbak/arch/

--控制文件备份路径： /datarman/rmanbak/controlfile/

--数据库文件备份路径：/datarman/rmanbak/dbfile/

--数据库文件备份日志路径：/datarman/rmanbak/dbfile_log/

以下为备份脚本 (脚本路径：/datarman/rmanbak/dbrman_scripts)

--删除多余和无效备份脚本(每天删除)

[oracle@localhost dbrman_scripts]$ chmod u+x delobsolete
[oracle@localhost dbrman_scripts]$ vi  delobsolete
run {
crosscheck backup;
delete noprompt obsolete;
delete noprompt expired backup;
}

--备份归档日志脚本(每天备份)

[oracle@localhost dbrman_scripts]$ chmod u+x arch
[oracle@localhost dbrman_scripts]$ vi  arch
sql 'alter system archive log current' ;
run {
allocate channel a1 type disk  FORMAT   '/datarman/rmanbak/arch/' ;
backup filesperset 10 format '/datarman/rmanbak/arch/arch_%T_%d_%t_%s_%p' archivelog all delete input;
release channel a1;
}

--数据库0级备份脚本(每周三和周六备份)

[oracle@localhost dbrman_scripts]$ chmod u+x level0
[oracle@localhost dbrman_scripts]$ vi  level0
sql 'alter system archive log current' ;
run {
allocate channel a2 type disk  ;
backup as compressed backupset incremental level 0 DATABASE filesperset 5  format '/datarman/rmanbak/dbfile/db_%T_%d_%t_%s_%p' ;
release channel a2;
}

相应的shell执行脚本

--删除多余和无效备份脚本(每天1点删除)

[oracle@localhost dbrman_scripts]$ chmod u+x emoss2dbdel.sh
[oracle@localhost dbrman_scripts]$ vi emoss2dbdel.sh
export ORACLE_SID=orcl
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1
export LD_LIBRARY_PATH=$ORACLE_HOME/lib
export PATH=$PATH:$ORACLE_HOME/bin
export NAME=`date -d now +%F`
$ORACLE_HOME/bin/rman target /  nocatalog  log=/datarman/rmanbak/dbfile_log/emoss2dbrmandel_$NAME.log<<EOF
@/datarman/rmanbak/dbrman_scripts/delobsolete
exit
EOF

----备份归档日志脚本(每天2点备份)

[oracle@localhost dbrman_scripts]$ chmod u+x emoss2dbarch.sh
[oracle@localhost dbrman_scripts]$ vi emoss2dbarch.sh
export ORACLE_SID=orcl
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1
export LD_LIBRARY_PATH=$ORACLE_HOME/lib
export PATH=$PATH:$ORACLE_HOME/bin
export NAME=`date -d now +%F`
$ORACLE_HOME/bin/rman target /  nocatalog  log=/datarman/rmanbak/dbfile_log/emoss2dbrmanarchback_$NAME.log<<EOF
@/datarman/rmanbak/dbrman_scripts/arch
exit
EOF

--数据库0级备份脚本(每周三和周六 3点备份 )

[oracle@localhost dbrman_scripts]$ chmod u+x emoss2dblev0.sh
[oracle@localhost dbrman_scripts]$ vi emoss2dblev0.sh
export ORACLE_SID=orcl
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1
export LD_LIBRARY_PATH=$ORACLE_HOME/lib
export PATH=$PATH:$ORACLE_HOME/bin
export NAME=`date -d now +%F`
$ORACLE_HOME/bin/rman target /  nocatalog  log=/datarman/rmanbak/dbfile_log/emoss2dbrmanlevel0_$NAME.log<<EOF
@/datarman/rmanbak/dbrman_scripts/arch
@/datarman/rmanbak/dbrman_scripts/level0
exit
EOF

计划任务

[oracle@localhost dbrman_scripts]$ crontab -e
0  1  * * *    /datarman/rmanbak/dbrman_scripts/emoss2dbdel.sh
0  2  * * *    /datarman/rmanbak/dbrman_scripts/emoss2dbarch.sh
0  3  * * 3,6  /datarman/rmanbak/dbrman_scripts/emoss2dblev0.sh