RMAN备份策略(转载)

备份策略:

星期天 0 级

星期一,二,四,五六 2 级

星期三 1 级
--本地

mkdir /home/oracle/backup
mkdir /home/oracle/backup/script
mkdir /home/oracle/backup/log
mkdir /home/oracle/backup/export

--备份目的地
mkdir /home/oracle/rman_backup

create tablespace rman_tbs datafile '/oradata/luke/rman_tbs01.dbf' size 1024M;

create user rman identified by rman default tablespace rman_tbs temporary tablespace temp;

grant connect,resource ,recovery_catalog_owner to rman;

rman catalog rman/rman
create catalog tablespace rman_tbs;
connect target
register database;
report schema;

configure retention policy to redundancy 2;
configure retention policy to recovery window of 7 days;

--倒出RMAN用户数据脚本exp_rman.par

userid=rman/rman
file=/home/oracle/backup/export/rman.dmp
log=/home/oracle/backup/log/rman.log

--倒出RMAN数据SHELL脚本exp_rman.sh
#!/bin/bash
cd $HOME
. .bash_profile
cd $HOME/backup/script
exp parfile=exp_rman.par

--零级备份RMAN脚本level0_backup.rcv
connect catalog rman/rman
connect target
run {
allocate channel d1 type disk;
allocate channel d2 type disk;
backup incremental level 0 database format '/home/oracle/rman_backup/level0_%d_%s_%p_%u.bak'
tag='level 0' include current controlfile;
sql 'alter system archive log current';
backup archivelog all format '/home/oracle/rman_backup/log_%d_%s_%p_%u.bak' delete all input;
release channel d2;
release channel d1;
}
crosscheck backup;
delete noprompt expired backup;
delete noprompt obsolete;
resync catalog;

--零级备份SHELL脚本的level0_backup.sh
#!/bin/bash
cd $HOME
. .bash_profile
cd $HOME/backup/script
rman cmdfile=level0_backup.rcv msglog=$HOME/backup/log/level0_backup.log
. /home/oracle/backup/script/exp_rman.sh

--一级差异增量备份RMAN脚本level1_backup.rcv
connect catalog rman/rman
connect target
run {
allocate channel d1 type disk;
backup incremental level 1 format '/home/oracle/rman_backup/level1_%d_%s_%p_%u.bak' tag = 'level 1' database;
sql 'alter system archive log current';
backup archivelog all format '/home/oracle/rman_backup/log_%d_%s_%p_%u.bak' delete all input;
release channel d1;
}
crosscheck backup;
delete noprompt expired backup;
delete noprompt obsolete;
resync catalog;

--一级差异增量备份SHELL脚本level1_backup.sh#!/bin/bash
cd $HOME
. .bash_profile
cd /home/oracle/backup/script
rman cmdfile=level1_backup.rcv msglog=$HOME/backup/log/level1.log
. /home/oracle/backup/script/exp_rman.sh

--二级差异增量备份RMAN脚本level2_backup.rcv
connect catalog rman/rman
connect target
run {
allocate channel d1 type disk;
backup incremental level 2 format '/home/oracle/rman_backup/level2_%d_%s_%p_%u.bak' tag = 'level 2' database;
sql 'alter system archive log current';
backup archivelog all format '/home/oracle/rman_backup/log_%d_%s_%p_%u.bak' delete all input;
release channel d1;
}
crosscheck backup;
delete noprompt expired backup;
delete noprompt obsolete;
resync catalog;

--二级差异增量备份SHELL脚本level2_backup.sh
#!/bin/bash
cd $HOME
. .bash_profile
cd /home/oracle/backup/script
rman cmdfile=level2_backup.rcv msglog=$HOME/backup/log/level2.log
. /home/oracle/backup/script/exp_rman.sh

提高RMAN增量备份性能

alter database enable block change tracking using file
'/u01/app/oracle/admin/devdb/bdump/luke.log';

desc v$block_change_tracking;