日期:2014-05-16  浏览次数:20794 次

求oracle增量备份的方法
如何实现oracle增量备份?

------解决方案--------------------
SQL code
-- *1). 完整备份 + 压缩备份 脚本:
#!/bin/bash
# incremental level 0 backup script

source /home/oracle/.bash_profile

current_day=`date +%Y%m%d`
current_day=12_$current_day
mkdir /data/obase/ora_backup/$current_day
echo '-------------------------------------'
echo "-- Begin Backup of DB 10.4.1.12 DateTime: `date` --"
echo '-------------------------------------'
rman target  / <<EOF
run
{
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 14 DAYS;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/data/obase/ora_backup/$current_day/PID-%F';
CONFIGURE DEVICE TYPE DISK PARALLELISM 4;
crosscheck backup;
delete noprompt obsolete;
delete noprompt expired backup;
allocate channel dev1 type disk;
allocate channel dev2 type disk;
allocate channel dev3 type disk;
allocate channel dev4 type disk;
backup as compressed backupset incremental level 0 tag='db0'
format '/data/obase/ora_backup/$current_day/%n_%T_%U' database;
sql 'alter system archive log current';
backup archivelog all format '/data/obase/ora_backup/$current_day/arc_%n_%T_%U' delete all input;
release channel dev1;
release channel dev2;
release channel dev3;
release channel dev4;
}
EOF
echo '------------------------------------'
echo "--  End Backup of DB 10.4.1.12 DateTime: `date`  --"
echo '------------------------------------'
scp -l 81920 -r /data/obase/ora_backup/$current_day oracle@10.4.1.13:/data/obase/ora_backup12 &
wait
echo '------------------------------------'
echo "-- End of Send file to 10.4.1.13 DateTime: `date` --"
echo '------------------------------------'

-- *2) 增量备份 + 压缩备份脚本:
#!/bin/bash
# incremental level 1 backup script

source /home/oracle/.bash_profile

current_day=`date +%Y%m%d`
incr_day=12_incr$current_day
mkdir /data/obase/ora_backup/$incr_day
echo '-------------------------------------'
echo "-- Begin Backup of DB 10.4.1.12 DateTime: `date` --"
echo '-------------------------------------'
rman target  / <<EOF
run
{
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 14 DAYS;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/data/obase/ora_backup/$incr_day/PID-%F';
CONFIGURE DEVICE TYPE DISK PARALLELISM 4;
delete noprompt obsolete;
crosscheck backup;
delete noprompt expired backup;
allocate channel dev1 type disk;
allocate channel dev2 type disk;
allocate channel dev3 type disk;
allocate channel dev4 type disk;
backup as compressed backupset incremental level 1 cumulative tag='db1'
format '/data/obase/ora_backup/$incr_day/%n_%T_%U' database;
sql 'alter system archive log current';
backup archivelog all format '/data/obase/ora_backup/$incr_day/arc_%n_%T_%U' delete all input;
release channel dev1;
release channel dev2;
release channel dev3;
release channel dev4;
}
EOF
echo '------------------------------------'
echo "--  End Backup of DB 10.4.1.12 DateTime: `date`  --"
echo '------------------------------------'
scp -l 81920 -r /data/obase/ora_backup/$incr_day oracle@10.4.1.13:/data/obase/ora_backup12 &
wait
echo '------------------------------------'
echo "-- End of Send file to 10.4.1.13 DateTime: `date` --"
echo '------------------------------------'

------解决方案--------------------
SQL code
-- 然后,我的crontab 如下:
[oracle@localhost bk_script]$ crontab -l
05 18 * * 6 /data/obase/ora_backup/bk_script/bk_script_level0.sh >> /data/obase/ora_backup/12_bk_level0.log
05 18 * * 0-5 /data/obase/ora_backup/bk_script/bk_script_level1.sh >> /data/obase/ora_backup/12_bk_level1.log