使用RMAN备份archived log files

• Include only archived redo log files
• Are alwarys full backups

RMAN>BACKUP

　　FORMAT '/disk1/backup/ar_%t_%s_%p'

　　ARCHIVELOG ALL DELETE ALL INPUT;(ALL DELETE ALL INPUT防止重复备份)

1、Archived Redo Log Backups

Online redo log file switch is automatic

Archived log failover is performed.

Back up archived logs that need backing up.

2、Backup Database Plus Archivelog(执行archived log back up 期间，具体执行过程步骤)

• Run the alter system archive log current command
• Run the backup archivelog all command
• Back up the rest of the datafiles specified by the backup database command.
• Run the alter system archive log current command
• Back up the new archive logs generated during the backup operation.

3、archive log的备份

SQL> alter system archive log current;

System altered.

 4、RMAN备份archive log

RMAN> backup archivelog all format '/u01/arcerzhang/ac_%U';

Starting backup at 24-MAR-13
current log archived
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=7 device type=DISK
channel ORA_DISK_1: starting archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=5 RECID=1 STAMP=809892057
input archived log thread=1 sequence=6 RECID=2 STAMP=809893274
input archived log thread=1 sequence=7 RECID=3 STAMP=809907842
input archived log thread=1 sequence=8 RECID=4 STAMP=809911423
input archived log thread=1 sequence=9 RECID=5 STAMP=809911902
input archived log thread=1 sequence=10 RECID=6 STAMP=809968863
input archived log thread=1 sequence=11 RECID=7 STAMP=809993975
input archived log thread=1 sequence=12 RECID=8 STAMP=810481799
input archived log thread=1 sequence=13 RECID=9 STAMP=810599313
input archived log thread=1 sequence=14 RECID=10 STAMP=810684113
input archived log thread=1 sequence=15 RECID=11 STAMP=810752782
input archived log thread=1 sequence=16 RECID=12 STAMP=810825309
input archived log thread=1 sequence=17 RECID=13 STAMP=810854172
input archived log thread=1 sequence=18 RECID=14 STAMP=810865159
input archived log thread=1 sequence=19 RECID=15 STAMP=810866182
input archived log thread=1 sequence=20 RECID=16 STAMP=810866373
channel ORA_DISK_1: starting piece 1 at 24-MAR-13
channel ORA_DISK_1: finished piece 1 at 24-MAR-13
piece handle=/u01/arcerzhang/ac_0ko59lm6_1_1 tag=TAG20130324T003934 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:56
Finished backup at 24-MAR-13

Starting Control File Autobackup at 24-MAR-13
piece handle=/u01/flash_recovery_area/POLI/autobackup/2013_03_24/o1_mf_n_810866430_8nvpr083_.bkp comment=NONE
Finished Control File Autobackup at 24-MAR-13

5、RMAN备份archive log ，并删除之前的arichive log；

RMAN> backup archivelog all format '/u01/arcerzhang/ac_%U' delete all input;

Starting backup at 24-MAR-13
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=5 RECID=1 STAMP=809892057
input archived log thread=1 sequence=6 RECID=2 STAMP=809893274
input archived log thread=1 sequence=7 RECID=3 STAMP=809907842
input archived log thread=1 sequence=8 RECID=4 STAMP=809911423
input archived log thread=1 sequence=9 RECID=5 STAMP=809911902
input archived log thread=1 sequence=10 RECID=6 STAMP=809968863
input archived log thread=1 sequence=11 RECID=7 STAMP=809993975
input archived log thread=1 sequence=12 RECID=8 STAMP=810481799
input archived log thread=1 sequence=13 RECID=9 STAMP=810599313
input archived log thread=1 sequence=14 RECID=10 STAMP=810684113
input archived log thread=1 sequence=15 RECID=11 STAMP=810752782
input archived log thread=1 sequence=16 RECID=12 STAMP=810825309
input archived log thread=1 sequence=17 RECID=13 STAMP=810854172
input archived log thread=1 sequence=18 RECID=14 STAMP=810865159
input archived log thread=1 sequence=19 RECID=15 STAMP=810866182
input archived log thread=1 sequence=20 RECID=16 STAMP=810866373
input archived log thread=1 sequence=21 RECID=17 STAMP=810866506
channel ORA_DISK_1: starting piece 1 at 24-MAR-13
channel ORA_DISK_1: finished piece 1 at 24-MAR-13
piece handle=/u01/arcerzhang/ac_0mo59lqb_1_1 tag=TAG20130324T004146 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:25
channel ORA_DISK_1: deleting archived log(s)
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_12/o1_mf_1_5_8mxz5swy_.arc RECID=1 STAMP=809892057
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_12/o1_mf_1_6_8my0dtxl_.arc RECID=2 STAMP=809893274
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_12/o1_mf_1_7_8mygmqpn_.arc RECID=3 STAMP=809907842
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_12/o1_mf_1_8_8myl3oq3_.arc RECID=4 STAMP=809911423
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_12/o1_mf_1_9_8myllymq_.arc RECID=5 STAMP=809911902
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_13/o1_mf_1_10_8n0b5n02_.arc RECID=6 STAMP=809968863
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_13/o1_mf_1_11_8n12qc0p_.arc RECID=7 STAMP=809993975
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_19/o1_mf_1_12_8nhz43gk_.arc RECID=8 STAMP=810481799
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_20/o1_mf_1_13_8nmkw6x0_.arc RECID=9 STAMP=810599313
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_21/o1_mf_1_14_8np4pfbk_.arc RECID=10 STAMP=810684113
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_22/o1_mf_1_15_8nr7r9fz_.arc RECID=11 STAMP=810752782
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_23/o1_mf_1_16_8ntglghk_.arc RECID=12 STAMP=810825309
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_23/o1_mf_1_17_8nvbr407_.arc RECID=13 STAMP=810854172
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_24/o1_mf_1_18_8nvoj566_.arc RECID=14 STAMP=810865159
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_24/o1_mf_1_19_8nvpj6cn_.arc RECID=15 STAMP=810866182
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_24/o1_mf_1_20_8nvpp5jh_.arc RECID=16 STAMP=810866373
archived log file name=/u01/flash_recovery_area/POLI/archivelog/2013_03_24/o1_mf_1_21_8nvptbo3_.arc RECID=17 STAMP=810866506
Finished backup at 24-MAR-13

Starting Control File Autobackup at 24-MAR-13
piece handle=/u01/flash_recovery_area/POLI/autobackup/2013_03_24/o1_mf_n_810866533_8nvpv61w_.bkp comment=NONE
Finished Control File Autobackup at 24-MAR-13

6、RMAN备份archive log,按照sequence no进行备份

backup archivelog sequence between 99 and 199 thread 1 delete input;

thread 1，如果是非RAC模式下，thread 的值只有一个;

7、RMAN备份archive log ，按照日期区间备份

backup archivelog from time "sysdate-15" until time "sysdate-7";

查询当前日期前15天至当前日期7天的归档日志信息；