知识大全 Oracle10g跨越Resetlogs时间点进行恢复

Posted 2022-07-15 时间

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　　原因日志序号会被置位以此防止后续日志被应用 resetlogs之前的备份将不能用于进行跨域resetlogs时间点的恢复

　　在Oracle数据库 g中 Oracle允许跨越resetlogs时间点进行完全/不完全恢复

　　本文将针对此特性介绍一个详细的参考示例:

　　一全备份数据库

　　$ rman target /

　　Recovery Manager: Release bit Production

　　connected to target database: EYGLE (DBID= )

　　RMAN> backup database plus archivelog delete all input;

　　Starting backup at : :

　　current log archived

　　using target database controlfile instead of recovery catalog

　　allocated channel: ORA_DISK_

　　channel ORA_DISK_ : sid= devtype=DISK

　　channel ORA_DISK_ : starting archive log backupset

　　channel ORA_DISK_ : specifying archive log(s) in backup set

　　input archive log thread= sequence= recid= stamp=

　　channel ORA_DISK_ : starting piece at : :

　　channel ORA_DISK_ : finished piece at : :

　　piece handle=/data /flash_recovery_area/EYGLE/backupset/ _ _

　　/o _mf_annnn_TAG T _ m woc_ bkp ment=NONE

　　channel ORA_DISK_ : backup set plete elapsed time: : :

　　channel ORA_DISK_ : deleting archive log(s)

　　archive log filename=/data /flash_recovery_area/EYGLE

　　/archivelog/ _ _

　　/o _mf_ _ _ qm_ arc recid= stamp=

　　archive log filename=/data

　　/flash_recovery_area/EYGLE/archivelog/ _ _

　　/o _mf_ _ _ g _ arc recid= stamp=

　　archive log filename=/data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ m og _ arc recid= stamp=

　　Finished backup at : :

　　Starting backup at : :

　　using channel ORA_DISK_

　　channel ORA_DISK_ : starting full datafile backupset

　　channel ORA_DISK_ : specifying datafile(s) in backupset

　　input datafile fno= name=/data /oradata/systemfile/bigtbs dbf

　　input datafile fno= name=/opt/oracle/oradata/eygle/system dbf

　　input datafile fno= name=/opt/oracle/oradata/eygle/EYGLE/datafile/o _mf_test_ xv ny_ dbf

　　input datafile fno= name=/opt/oracle/oradata/eygle/undotbs dbf

　　input datafile fno= name=/opt/oracle/oradata/eygle/sysaux dbf

　　input datafile fno= name=/opt/oracle/oradata/eygle/dfmbrc dbf

　　input datafile fno= name=/opt/oracle/oradata/eygle/trans dbf

　　channel ORA_DISK_ : starting piece at : :

　　channel ORA_DISK_ : finished piece at : :

　　piece handle=/data /flash_recovery_area/EYGLE/backupset

　　/ _ _ /o _mf_nnndf_TAG T _ m kf_ bkp ment=NONE

　　channel ORA_DISK_ : backup set plete elapsed time: : :

　　channel ORA_DISK_ : starting full datafile backupset

　　channel ORA_DISK_ : specifying datafile(s) in backupset

　　input datafile fno= name=/data /oradata/systemfile/eygle dbf

　　input datafile fno= name=/opt/oracle/oradata/eygle/users dbf

　　input datafile fno= name=/opt/oracle/oradata/eygle/EYGLE/datafile/o _mf_itpub_ xv g _ dbf

　　channel ORA_DISK_ : starting piece at : :

　　channel ORA_DISK_ : finished piece at : :

　　piece handle=/data /flash_recovery_area/EYGLE/backupset/ _ _

　　/o _mf_nnndf_TAG T _ m dxm_ bkp ment=NONE

　　channel ORA_DISK_ : backup set plete elapsed time: : :

　　channel ORA_DISK_ : starting full datafile backupset

　　channel ORA_DISK_ : specifying datafile(s) in backupset

　　input datafile fno= name=/opt/oracle/oradata/eygle/t k dbf

　　channel ORA_DISK_ : starting piece at : :

　　channel ORA_DISK_ : finished piece at : :

　　piece handle=/data /flash_recovery_area/EYGLE/backupset

　　/ _ _ /o _mf_nnndf_TAG T _ m kz_ bkp ment=NONE

　　channel ORA_DISK_ : backup set plete elapsed time: : :

　　Finished backup at : :

　　Starting backup at : :

　　current log archived

　　using channel ORA_DISK_

　　channel ORA_DISK_ : starting archive log backupset

　　channel ORA_DISK_ : specifying archive log(s) in backup set

　　input archive log thread= sequence= recid= stamp=

　　channel ORA_DISK_ : starting piece at : :

　　channel ORA_DISK_ : finished piece at : :

　　piece handle=/data /flash_recovery_area/EYGLE/backupset/ _ _

　　/o _mf_annnn_TAG T _ m jpo_ bkp ment=NONE

　　channel ORA_DISK_ : backup set plete elapsed time: : :

　　channel ORA_DISK_ : deleting archive log(s)

　　archive log filename=/data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ m gb _ arc recid= stamp=

　　Finished backup at : :

　　Starting Control File and SPFILE Autobackup at : :

　　piece handle=/data /flash_recovery_area/EYGLE/autobackup

　　/ _ _ /o _mf_s_ _ m qps_ bkp ment=NONE

　　Finished Control File and SPFILE Autobackup at : :

　　RMAN> exit

　　Recovery Manager plete

　　二进行数据的更改

　　$ sqlplus / as sysdba

　　SQL*Plus: Release Production on

　　Tue Apr : :

　　Connected to:

　　Oracle Database g Enterprise Edition Release

　　 bit Production

　　With the Partitioning OLAP and Data Mining options

　　SYS AS SYSDBA on : : >alter system switch logfile;

　　System altered

　　SYS AS SYSDBA on : : >select count(*) from t;

　　COUNT(*)

　　SYS AS SYSDBA on : : >insert into t select * from t;

　　 rows created

　　SYS AS SYSDBA on : : >mit;

　　Commit plete

　　SYS AS SYSDBA on : : >alter system switch logfile;

　　System altered

　　SYS AS SYSDBA on : : >truncate table t;

　　Table truncated

　　SYS AS SYSDBA on : : >alter system switch logfile;

　　System altered

　　日志序列的情况如下:

　　SYS AS SYSDBA on : : >

　　select * from v$log_history where recid > ;

　　RECID STAMP THREAD# SEQUENCE# FIRST_CHANGE# FIRST_TIME NEXT_CHANGE# RESETLOGS_CHANGE# RESETLOGS_TIME

　　 : : : :

　　 rows selected

　　关闭数据库:

　　SYS AS SYSDBA on : : >shutdown immediate;

　　Database closed

　　Database dismounted

　　ORACLE instance shut down

　　SYS AS SYSDBA on : : >exit

　　Disconnected from Oracle Database g Enterprise

　　Edition Release bit Production

　　With the Partitioning OLAP and Data Mining options

　　三执行不完全恢复

　　$ rman target /

　　Recovery Manager: Release bit Production

　　connected to target database (not started)

　　RMAN> startup mount;

　　Oracle instance started

　　database mounted

　　Total System Global Area bytes

　　Fixed Size bytes

　　Variable Size bytes

　　Database Buffers bytes

　　Redo Buffers bytes

　　RMAN> run

　　 > set until sequence thread ;

　　 > restore database;

　　 > recover database;

　　executing mand: SET until clause

　　using target database controlfile instead of recovery catalog

　　Starting restore at : :

　　allocated channel: ORA_DISK_

　　channel ORA_DISK_ : sid= devtype=DISK

　　datafile not processed because file is read only

　　channel ORA_DISK_ : starting datafile backupset restore

　　channel ORA_DISK_ : specifying datafile(s) to restore from backup set

　　restoring datafile to /opt/oracle/oradata/eygle/system dbf

　　restoring datafile to /opt/oracle/oradata/eygle/undotbs dbf

　　restoring datafile to /opt/oracle/oradata/eygle/sysaux dbf

　　restoring datafile to /opt/oracle/oradata/eygle/EYGLE/datafile/o _mf_test_ xv ny_ dbf

　　restoring datafile to /data /oradata/systemfile/bigtbs dbf

　　restoring datafile to /opt/oracle/oradata/eygle/dfmbrc dbf

　　channel ORA_DISK_ : restored backup piece

　　piece handle=/data /flash_recovery_area/EYGLE/backupset

　　/ _ _ /o _mf_nnndf_TAG T _ m kf_ bkp tag=TAG T

　　channel ORA_DISK_ : restore plete

　　channel ORA_DISK_ : starting datafile backupset restore

　　channel ORA_DISK_ : specifying datafile(s) to restore from backup set

　　restoring datafile to /opt/oracle/oradata/eygle/users dbf

　　restoring datafile to /data /oradata/systemfile/eygle dbf

　　restoring datafile to /opt/oracle/oradata/eygle/EYGLE/datafile/o _mf_itpub_ xv g _ dbf

　　channel ORA_DISK_ : restored backup piece

　　piece handle=/data /flash_recovery_area/EYGLE/backupset

　　/ _ _ /o _mf_nnndf_TAG T _ m dxm_ bkp

　　tag=TAG T

　　channel ORA_DISK_ : restore plete

　　channel ORA_DISK_ : starting datafile backupset restore

　　channel ORA_DISK_ : specifying datafile(s) to restore from backup set

　　restoring datafile to /opt/oracle/oradata/eygle/t k dbf

　　channel ORA_DISK_ : restored backup piece

　　piece handle=/data /flash_recovery_area/EYGLE/backupset

　　/ _ _ /o _mf_nnndf_TAG T _ m kz_ bkp

　　tag=TAG T

　　channel ORA_DISK_ : restore plete

　　Finished restore at : :

　　Starting recover at : :

　　using channel ORA_DISK_

　　datafile not processed because file is offline

　　starting media recovery

　　archive log thread sequence is already on disk as file /data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ m z k_ arc

　　channel ORA_DISK_ : starting archive log

　　restore to default destination

　　channel ORA_DISK_ : restoring archive log

　　archive log thread= sequence=

　　channel ORA_DISK_ : restored backup piece

　　piece handle=/data /flash_recovery_area/EYGLE/backupset

　　/ _ _ /o _mf_annnn_TAG T _ m jpo_ bkp

　　tag=TAG T

　　channel ORA_DISK_ : restore plete

　　archive log filename=/data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ mtkfk_ arc thread= sequence=

　　channel default: deleting archive log(s)

　　archive log filename=/data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ mtkfk_ arc recid= stamp=

　　archive log filename=/data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ m z k_ arc thread= sequence=

　　media recovery plete

　　Finished recover at : :

　　RMAN> alter database open resetlogs;

　　database opened

　　RMAN> exit

　　Recovery Manager plete

　　四此时的数据库状态

　　$ sqlplus / as sysdba

　　SQL*Plus: Release Production on Tue Apr : :

　　Connected to:

　　Oracle Database g Enterprise Edition

　　Release bit Production

　　With the Partitioning OLAP and Data Mining options

　　SYS AS SYSDBA on : : >archive log list;

　　Database log mode Archive Mode

　　Automatic archival Enabled

　　Archive destination USE_DB_RECOVERY_FILE_DEST

　　Oldest online log sequence

　　Next log sequence to archive

　　Current log sequence

　　SYS AS SYSDBA on : : >select count(*) from t;

　　COUNT(*)

　　五继续进行数据更改

　　SYS AS SYSDBA on : : >

　　create table tt as select * from dba_users;

　　Table created

　　SYS AS SYSDBA on : : >alter system switch logfile;

　　System altered

　　SYS AS SYSDBA on : : >select count(*) from tt;

　　COUNT(*)

　　SYS AS SYSDBA on : : >insert into tt select * from tt;

　　 rows created

　　SYS AS SYSDBA on : : >mit;

　　Commit plete

　　SYS AS SYSDBA on : : >alter system switch logfile;

　　System altered

　　此时的日志序列:

　　SYS AS SYSDBA on : : >

　　select * from v$log_history where recid > ;

　　RECID STAMP THREAD# SEQUENCE# FIRST_CHANGE# FIRST_TIME

　　NEXT_CHANGE# RESETLOGS_CHANGE# RESETLOGS_TIME

　　 : : : :

　　 rows selected

　　SYS AS SYSDBA on : : >shutdown immediate;

　　Database closed

　　Database dismounted

　　ORACLE instance shut down

　　SYS AS SYSDBA on : : >exit

　　Disconnected from Oracle Database g Enterprise

　　Edition Release bit Production

　　With the Partitioning OLAP and Data Mining options

　　六再次执行恢复

　　$ rman target /

　　Recovery Manager: Release bit Production

　　connected to target database (not started)

　　RMAN> startup mount;

　　Oracle instance started

　　database mounted

　　Total System Global Area bytes

　　Fixed Size bytes

　　Variable Size bytes

　　Database Buffers bytes

　　Redo Buffers bytes

　　RMAN> run

　　 > restore database;

　　 > recover database;

　　Starting restore at : :

　　using target database controlfile instead of recovery catalog

　　allocated channel: ORA_DISK_

　　channel ORA_DISK_ : sid= devtype=DISK

　　datafile not processed because file is read only

　　channel ORA_DISK_ : starting datafile backupset restore

　　channel ORA_DISK_ : specifying datafile(s) to restore from backup set

　　restoring datafile to /opt/oracle/oradata/eygle/system dbf

　　restoring datafile to /opt/oracle/oradata/eygle/undotbs dbf

　　restoring datafile to /opt/oracle/oradata/eygle/sysaux dbf

　　restoring datafile to /opt/oracle/oradata/eygle/EYGLE/datafile/o _mf_test_ xv ny_ dbf

　　restoring datafile to /data /oradata/systemfile/bigtbs dbf

　　restoring datafile to /opt/oracle/oradata/eygle/dfmbrc dbf

　　channel ORA_DISK_ : restored backup piece

　　piece handle=/data /flash_recovery_area/EYGLE/backupset

　　/ _ _ /o _mf_nnndf_TAG T _ m kf_ bkp

　　tag=TAG T

　　channel ORA_DISK_ : restore plete

　　channel ORA_DISK_ : starting datafile backupset restore

　　channel ORA_DISK_ : specifying datafile(s) to restore from backup set

　　restoring datafile to /opt/oracle/oradata/eygle/users dbf

　　restoring datafile to /data /oradata/systemfile/eygle dbf

　　restoring datafile to /opt/oracle/oradata/eygle/EYGLE/datafile/o _mf_itpub_ xv g _ dbf

　　channel ORA_DISK_ : restored backup piece

　　piece handle=/data /flash_recovery_area/EYGLE/backupset

　　/ _ _ /o _mf_nnndf_TAG T _ m dxm_ bkp tag=TAG T

　　channel ORA_DISK_ : restore plete

　　channel ORA_DISK_ : starting datafile backupset restore

　　channel ORA_DISK_ : specifying datafile(s) to restore from backup set

　　restoring datafile to /opt/oracle/oradata/eygle/t k dbf

　　channel ORA_DISK_ : restored backup piece

　　piece handle=/data /flash_recovery_area/EYGLE/backupset

　　/ _ _ /o _mf_nnndf_TAG T _ m kz_ bkp

　　tag=TAG T

　　channel ORA_DISK_ : restore plete

　　Finished restore at : :

　　Starting recover at : :

　　using channel ORA_DISK_

　　datafile not processed because file is offline

　　starting media recovery

　　archive log thread sequence is already on disk as file /data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ m z k_ arc

　　archive log thread sequence is already on disk as file /data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ n v _ arc

　　archive log thread sequence is already on disk as file /data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ n y _ arc

　　channel ORA_DISK_ : starting archive log

　　restore to default destination

　　channel ORA_DISK_ : restoring archive log

　　archive log thread= sequence=

　　channel ORA_DISK_ : restored backup piece

　　piece handle=/data /flash_recovery_area/EYGLE/backupset

　　/ _ _ /o _mf_annnn_TAG T _ m jpo_ bkp

　　tag=TAG T

　　channel ORA_DISK_ : restore plete

　　archive log filename=/data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ ngror_ arc thread= sequence=

　　channel default: deleting archive log(s)

　　archive log filename=/data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ ngror_ arc recid= stamp=

　　archive log filename=/data /flash_recovery_area/EYGLE/archivelog

　　/ _ _ /o _mf_ _ _ m z k_ arc thread= sequence=

　　media recovery plete

　　Finished recover at : :

　　RMAN> alter database open;

　　database opened

　　RMAN> exit

　　Recovery Manager plete

　　七最后检查数据恢复情况

　　注意此次恢复跨越了resetlogs时间点

　　$ sqlplus / as sysdba

　　SQL*Plus: Release Production on

　　Tue Apr : :

　　Connected to:

　　Oracle Database g Enterprise Edition Release

　　 bit Production

　　With the Partitioning OLAP and Data Mining options

　　SYS AS SYSDBA on : : >select count(*) from t;

　　COUNT(*)

　　SYS AS SYSDBA on : : >select count(*) from tt;

　　COUNT(*)

　　SYS AS SYSDBA on : : >