1.主庫(kù)故障

SQL> startup ORACLE instance started.Total System Global Area 1068937216 bytes Fixed Size 2260088 bytes Variable Size 910164872 bytes Database Buffers 150994944 bytes Redo Buffers 5517312 bytes ORA-00205: error in identifying control file, check alert log for more info

2.dgmgrl故障提示

DGMGRL> show configuration;Configuration - dgcProtection Mode: MaxPerformanceDatabases:atest1 - Primary databaseatest2 - Physical standby databaseFast-Start Failover: DISABLEDConfiguration Status: ORA-16525: the Data Guard broker is not yet available ORA-16625: cannot reach database "atest1" DGM-17017: unable to determine configuration status

3.執(zhí)行故障切換

DGMGRL> failover to atest2; Performing failover NOW, please wait... Failover succeeded, new primary is "atest2" DGMGRL> show configuration;Configuration - dgcProtection Mode: MaxPerformanceDatabases:atest2 - Primary databaseatest1 - Physical standby database (disabled)ORA-16661: the standby database needs to be reinstatedFast-Start Failover: DISABLEDConfiguration Status: SUCCESS

查看狀態(tài)如上，提示已切換成功，atest2已成為主庫(kù)，而atest1處于故障中。

4.處理故障數(shù)據(jù)庫(kù)（采用rman復(fù)制的方式）

　　a.故障庫(kù)需要啟動(dòng)到nomount

　　b.登錄rman

rlwrap rman target sys/123456@atest2 auxiliary sys/123456@atest1

　　c.執(zhí)行數(shù)據(jù)庫(kù)克隆

RMAN> duplicate target database for standby nofilenamecheck from active database;Starting Duplicate Db at 29-DEC-15 using target database control file instead of recovery catalog allocated channel: ORA_AUX_DISK_1 channel ORA_AUX_DISK_1: SID=1147 device type=DISKcontents of Memory Script: {backup as copy reusetargetfile '/u01/app/oracle/product/11.2.0/db1/dbs/orapwatest' auxiliary format '/u01/app/oracle/product/11.2.0/db1/dbs/orapwatest' ; } executing Memory ScriptStarting backup at 29-DEC-15 allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=19 device type=DISK Finished backup at 29-DEC-15contents of Memory Script: {sql clone "alter system set control_files = ''/u01/app/oracle/oradata/ATEST/controlfile/o1_mf_c5fr9b0h_.ctl'', ''/u01/app/oracle/fast_recovery_area/ATEST/controlfile/o1_mf_c5fr9b6n_.ctl'' comment=''Set by RMAN'' scope=spfile";backup as copy current controlfile for standby auxiliary format '/u01/app/oracle/oradata/ATEST/controlfile/o1_mf_c5fr9b0h_.ctl';restore clone controlfile to '/u01/app/oracle/fast_recovery_area/ATEST/controlfile/o1_mf_c5fr9b6n_.ctl' from '/u01/app/oracle/oradata/ATEST/controlfile/o1_mf_c5fr9b0h_.ctl';sql clone "alter system set control_files = ''/u01/app/oracle/oradata/ATEST/controlfile/o1_mf_c5fr9b0h_.ctl'', ''/u01/app/oracle/fast_recovery_area/ATEST/controlfile/o1_mf_c5fr9b6n_.ctl'' comment=''Set by RMAN'' scope=spfile"; shutdown clone immediate;startup clone nomount; } executing Memory Scriptsql statement: alter system set control_files = ''/u01/app/oracle/oradata/ATEST/controlfile/o1_mf_c5fr9b0h_.ctl'', ''/u01/app/oracle/fast_recovery_area/ATEST/controlfile/o1_mf_c5fr9b6n_.ctl'' comment= ''Set by RMAN'' scope=spfileStarting backup at 29-DEC-15 using channel ORA_DISK_1 channel ORA_DISK_1: starting datafile copy copying standby control file output file name=/u01/app/oracle/product/11.2.0/db1/dbs/snapcf_atest.f tag=TAG20151229T212657 RECID=10 STAMP=899760418 channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03 Finished backup at 29-DEC-15Starting restore at 29-DEC-15 using channel ORA_AUX_DISK_1channel ORA_AUX_DISK_1: copied control file copy Finished restore at 29-DEC-15sql statement: alter system set control_files = ''/u01/app/oracle/oradata/ATEST/controlfile/o1_mf_c5fr9b0h_.ctl'', ''/u01/app/oracle/fast_recovery_area/ATEST/controlfile/o1_mf_c5fr9b6n_.ctl'' comment= ''Set by RMAN'' scope=spfileOracle instance shut downconnected to auxiliary database (not started) Oracle instance startedTotal System Global Area 1068937216 bytesFixed Size 2260088 bytes Variable Size 910164872 bytes Database Buffers 150994944 bytes Redo Buffers 5517312 bytescontents of Memory Script: {sql clone 'alter database mount standby database'; } executing Memory Scriptsql statement: alter database mount standby databasecontents of Memory Script: {set newname for clone tempfile 1 to new;switch clone tempfile all;set newname for clone datafile 1 to new;set newname for clone datafile 2 to new;set newname for clone datafile 3 to new;set newname for clone datafile 4 to new;set newname for clone datafile 5 to new;set newname for clone datafile 6 to new;backup as copy reusedatafile 1 auxiliary format newdatafile 2 auxiliary format newdatafile 3 auxiliary format newdatafile 4 auxiliary format newdatafile 5 auxiliary format newdatafile 6 auxiliary format new;sql 'alter system archive log current'; } executing Memory Scriptexecuting command: SET NEWNAMErenamed tempfile 1 to /u01/app/oracle/oradata/ATEST1/datafile/o1_mf_temp_%u_.tmp in control fileexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEStarting backup at 29-DEC-15 using channel ORA_DISK_1 channel ORA_DISK_1: starting datafile copy input datafile file number=00005 name=/u01/app/oracle/oradata/ATEST2/datafile/o1_mf_system_c7sxhqz0_.dbf output file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_system_15qq2g9s_.dbf tag=TAG20151229T212723 channel ORA_DISK_1: datafile copy complete, elapsed time: 00:01:35 channel ORA_DISK_1: starting datafile copy input datafile file number=00006 name=/u01/app/oracle/oradata/ATEST2/datafile/o1_mf_system_c7sxv77x_.dbf output file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_system_16qq2gcr_.dbf tag=TAG20151229T212723 channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35 channel ORA_DISK_1: starting datafile copy input datafile file number=00001 name=/u01/app/oracle/oradata/ATEST2/datafile/o1_mf_system_06qovlhs_.dbf output file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_system_17qq2gdu_.dbf tag=TAG20151229T212723 channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35 channel ORA_DISK_1: starting datafile copy input datafile file number=00002 name=/u01/app/oracle/oradata/ATEST2/datafile/o1_mf_sysaux_07qovlkt_.dbf output file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_sysaux_18qq2gf1_.dbf tag=TAG20151229T212723 channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35 channel ORA_DISK_1: starting datafile copy input datafile file number=00003 name=/u01/app/oracle/oradata/ATEST2/datafile/o1_mf_undotbs1_08qovlnu_.dbf output file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_undotbs1_19qq2gg5_.dbf tag=TAG20151229T212723 channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:07 channel ORA_DISK_1: starting datafile copy input datafile file number=00004 name=/u01/app/oracle/oradata/ATEST2/datafile/o1_mf_users_09qovlod_.dbf output file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_users_1aqq2ggc_.dbf tag=TAG20151229T212723 channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:01 Finished backup at 29-DEC-15sql statement: alter system archive log currentcontents of Memory Script: {switch clone datafile all; } executing Memory Scriptdatafile 1 switched to datafile copy input datafile copy RECID=10 STAMP=899760656 file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_system_17qq2gdu_.dbf datafile 2 switched to datafile copy input datafile copy RECID=11 STAMP=899760656 file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_sysaux_18qq2gf1_.dbf datafile 3 switched to datafile copy input datafile copy RECID=12 STAMP=899760656 file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_undotbs1_19qq2gg5_.dbf datafile 4 switched to datafile copy input datafile copy RECID=13 STAMP=899760656 file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_users_1aqq2ggc_.dbf datafile 5 switched to datafile copy input datafile copy RECID=14 STAMP=899760656 file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_system_15qq2g9s_.dbf datafile 6 switched to datafile copy input datafile copy RECID=15 STAMP=899760656 file name=/u01/app/oracle/oradata/ATEST1/datafile/o1_mf_system_16qq2gcr_.dbf Finished Duplicate Db at 29-DEC-15

　　d.刪除和重新添加備庫(kù)

DGMGRL> remove database atest1; Removed database "atest1" from the configuration DGMGRL> add database atest1; Database "atest1" added DGMGRL> disable configuration; Disabled. DGMGRL> enable configuration; Enabled. DGMGRL> show configuration;Configuration - dgcProtection Mode: MaxPerformanceDatabases:atest2 - Primary databaseatest1 - Physical standby databaseFast-Start Failover: DISABLEDConfiguration Status: SUCCESS

　　e.把故障庫(kù)啟動(dòng)到open狀態(tài)

SQL> alter database open;Database altered.

5.如果需要，可以把主備庫(kù)切換切回來

DGMGRL> switchover to atest1; Performing switchover NOW, please wait... Operation requires a connection to instance "atest" on database "atest1" Connecting to instance "atest"... Connected. New primary database "atest1" is opening... Operation requires startup of instance "atest" on database "atest2" Starting instance "atest"... ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance ORACLE instance started. Database mounted. Database opened. Switchover succeeded, new primary is "atest1" DGMGRL> show configuration;Configuration - dgcProtection Mode: MaxPerformanceDatabases:atest1 - Primary databaseatest2 - Physical standby databaseFast-Start Failover: DISABLEDConfiguration Status: SUCCESS

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轉(zhuǎn)載于:https://www.cnblogs.com/vijayfly/p/5086456.html

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