rman backup database force 功能
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rman backup database force 功能
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FORCE
Causes RMAN to ignore backup optimization. In other words, even if CONFIGURE BACKUP OPTIMIZATION is set to ON, RMAN backs up all specified files.
Note: You can also specify this option in the backupSpecOperand clause.
加上FORCE選項,則RMAN忽略調CONFIGURE里的優(yōu)化功能選項.
比如:你配置了RMAN優(yōu)化功能為ON,之前對只讀表空間作了備份,這時,再備份全庫,不加FORCE.
則RMAN不會備份只讀表空間,因為之前已經備份過,加上FORCE,則RMAN忽略掉優(yōu)化功能,
作全庫備份.
RMAN> show all;
RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION ON;
SQL> alter tablespace tools read only;
Tablespace altered.
RMAN> backup tablespace tools;
Starting backup at 21-DEC-07
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00004 name=D:ORACLEORADATAPAULTOOLS01.DBF
channel ORA_DISK_1: starting piece 1 at 21-DEC-07
channel ORA_DISK_1: finished piece 1 at 21-DEC-07
piece handle=D:BACKUP3IJ454LF_1_1 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 21-DEC-07
Starting Control File and SPFILE Autobackup at 21-DEC-07
piece handle=D:BACKUPC-1605165889-20071221-03 comment=NONE
Finished Control File and SPFILE Autobackup at 21-DEC-07
RMAN> backup database;
Starting backup at 21-DEC-07
using channel ORA_DISK_1
skipping datafile 4; already backed up 3 time(s)
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=D:ORACLEORADATAPAULSYSTEM01.DBF
input datafile fno=00002 name=D:ORACLEORADATAPAULUNDOTBS01.DBF
input datafile fno=00003 name=D:ORACLEORADATAPAULINDX01.DBF
input datafile fno=00005 name=D:ORACLEORADATAPAULUSERS01.DBF
channel ORA_DISK_1: starting piece 1 at 21-DEC-07
channel ORA_DISK_1: finished piece 1 at 21-DEC-07
piece handle=D:BACKUP3KJ454M1_1_1 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:45
Finished backup at 21-DEC-07
Starting Control File and SPFILE Autobackup at 21-DEC-07
piece handle=D:BACKUPC-1605165889-20071221-04 comment=NONE
Finished Control File and SPFILE Autobackup at 21-DEC-07
RMAN> backup database force;
Starting backup at 21-DEC-07
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=D:ORACLEORADATAPAULSYSTEM01.DBF
input datafile fno=00002 name=D:ORACLEORADATAPAULUNDOTBS01.DBF
input datafile fno=00003 name=D:ORACLEORADATAPAULINDX01.DBF
input datafile fno=00005 name=D:ORACLEORADATAPAULUSERS01.DBF
input datafile fno=00004 name=D:ORACLEORADATAPAULTOOLS01.DBF
channel ORA_DISK_1: starting piece 1 at 21-DEC-07
channel ORA_DISK_1: finished piece 1 at 21-DEC-07
piece handle=D:BACKUP3MJ454NL_1_1 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:55
Finished backup at 21-DEC-07
Starting Control File and SPFILE Autobackup at 21-DEC-07
piece handle=D:BACKUPC-1605165889-20071221-05 comment=NONE
Finished Control File and SPFILE Autobackup at 21-DEC-07
RMAN>
Causes RMAN to ignore backup optimization. In other words, even if CONFIGURE BACKUP OPTIMIZATION is set to ON, RMAN backs up all specified files.
Note: You can also specify this option in the backupSpecOperand clause.
加上FORCE選項,則RMAN忽略調CONFIGURE里的優(yōu)化功能選項.
比如:你配置了RMAN優(yōu)化功能為ON,之前對只讀表空間作了備份,這時,再備份全庫,不加FORCE.
則RMAN不會備份只讀表空間,因為之前已經備份過,加上FORCE,則RMAN忽略掉優(yōu)化功能,
作全庫備份.
RMAN> show all;
RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION ON;
SQL> alter tablespace tools read only;
Tablespace altered.
RMAN> backup tablespace tools;
Starting backup at 21-DEC-07
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00004 name=D:ORACLEORADATAPAULTOOLS01.DBF
channel ORA_DISK_1: starting piece 1 at 21-DEC-07
channel ORA_DISK_1: finished piece 1 at 21-DEC-07
piece handle=D:BACKUP3IJ454LF_1_1 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 21-DEC-07
Starting Control File and SPFILE Autobackup at 21-DEC-07
piece handle=D:BACKUPC-1605165889-20071221-03 comment=NONE
Finished Control File and SPFILE Autobackup at 21-DEC-07
RMAN> backup database;
Starting backup at 21-DEC-07
using channel ORA_DISK_1
skipping datafile 4; already backed up 3 time(s)
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=D:ORACLEORADATAPAULSYSTEM01.DBF
input datafile fno=00002 name=D:ORACLEORADATAPAULUNDOTBS01.DBF
input datafile fno=00003 name=D:ORACLEORADATAPAULINDX01.DBF
input datafile fno=00005 name=D:ORACLEORADATAPAULUSERS01.DBF
channel ORA_DISK_1: starting piece 1 at 21-DEC-07
channel ORA_DISK_1: finished piece 1 at 21-DEC-07
piece handle=D:BACKUP3KJ454M1_1_1 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:45
Finished backup at 21-DEC-07
Starting Control File and SPFILE Autobackup at 21-DEC-07
piece handle=D:BACKUPC-1605165889-20071221-04 comment=NONE
Finished Control File and SPFILE Autobackup at 21-DEC-07
RMAN> backup database force;
Starting backup at 21-DEC-07
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=D:ORACLEORADATAPAULSYSTEM01.DBF
input datafile fno=00002 name=D:ORACLEORADATAPAULUNDOTBS01.DBF
input datafile fno=00003 name=D:ORACLEORADATAPAULINDX01.DBF
input datafile fno=00005 name=D:ORACLEORADATAPAULUSERS01.DBF
input datafile fno=00004 name=D:ORACLEORADATAPAULTOOLS01.DBF
channel ORA_DISK_1: starting piece 1 at 21-DEC-07
channel ORA_DISK_1: finished piece 1 at 21-DEC-07
piece handle=D:BACKUP3MJ454NL_1_1 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:55
Finished backup at 21-DEC-07
Starting Control File and SPFILE Autobackup at 21-DEC-07
piece handle=D:BACKUPC-1605165889-20071221-05 comment=NONE
Finished Control File and SPFILE Autobackup at 21-DEC-07
RMAN>
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