基于时间的备份保留策略的rman研究(五)
l ORA_DISK_1: finished piece 1 at 2012-10-09:12:17:01
piece handle=/u01/app/oracle/flash_recovery_area/ORCL/backupset/2012_10_09/o1_mf_nnndf_TAG20121009T121616_87798jhg_.bkp tag=TAG20121009T121616 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:45
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current control file in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 2012-10-09:12:17:03
channel ORA_DISK_1: finished piece 1 at 2012-10-09:12:17:04
piece handle=/u01/app/oracle/flash_recovery_area/ORCL/backupset/2012_10_09/o1_mf_ncsnf_TAG20121009T121616_87799z8h_.bkp tag=TAG20121009T121616 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 2012-10-09:12:17:04
RMAN> backup database; //第二次users就被rman自动踢掉了
Starting backup at 2012-10-09:12:17:22
using channel ORA_DISK_1
skipping datafile 4; already backed up 1 time(s)
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_system_7wvsw7b2_.dbf
input datafile fno=00003 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_sysaux_7wvsw7bd_.dbf
input datafile fno=00005 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_example_7wvsxyqt_.dbf
input datafile fno=00006 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_ts_1_7x5v2q05_.dbf
input datafile fno=00002 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_undotbs1_7wvsw7gf_.dbf
channel ORA_DISK_1: starting piece 1 at 2012-10-09:12:17:23
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[sql]
[root@think ~]# export LANG=en_US
[root@think ~]# date
Tue Oct 9 12:21:44 CST 2012
[root@think ~]# date -s "Tue Oct 10 10:21:44 CST 2012"
Wed Oct 10 10:21:44 CST 2012
[root@think ~]# date
Wed Oct 10 10:21:45 CST 2012
Recovery Manager: Release 10.2.0.1.0 - Production on Wed Oct 10 10:21:59 2012
RMAN> backup database;
Starting backup at 2012-10-10:10:22:11
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=145 devtype=DISK
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_system_7wvsw7b2_.dbf
input datafile fno=00003 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_sysaux_7wvsw7bd_.dbf
input datafile fno=00004 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_users_7wvsw7hg_.dbf
input datafile fno=00005 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_example_7wvsxyqt_.dbf
input datafile fno=00006 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_ts_1_7x5v2q05_.dbf
input datafile fno=00002 name=/u01/app/oracle/oradata/ORCL/datafile/o1_mf_undotbs1_7wvsw7gf_.dbf
channel ORA_DISK_1: starting piece 1 at 2012-10-10:10:22:12
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5 实验总结：
在recovery window of 1 days的假设下：
㈠ optimization和read only下：半天
㈡ report obsolete：一整天
㈢ repor