只需这10步，通过历史控制文件恢复数据库
2024-06-11 06:56:02
1. 记录控制文件、数据文件头的scn
SYS@enmo>select checkpoint_change# from v$database;CHECKPOINT_CHANGE#
------------------18502624SYS@enmo>select name,checkpoint_change# from v$datafile;NAME CHECKPOINT_CHANGE#
-------------------------------------------------- ------------------
/u01/app/dbfile/enmo/system01.dbf 18502624
/u01/app/dbfile/enmo/sysaux01.dbf 18502624
/u01/app/dbfile/enmo/undotbs1.dbf 18502624
/u01/app/dbfile/enmo/users01.dbf 18502624
/u01/app/dbfile/enmo/chang01.dbf 18502624
/u01/app/dbfile/enmo/lob_data01.dbf 18502624
/u01/app/dbfile/enmo/oggdata.dbf 18502624
/u01/app/dbfile/reccat.dbf 185026248 rows selected.SYS@enmo>select name,checkpoint_change# from v$datafile_header;NAME CHECKPOINT_CHANGE#
-------------------------------------------------- ------------------
/u01/app/dbfile/enmo/system01.dbf 18502624
/u01/app/dbfile/enmo/sysaux01.dbf 18502624
/u01/app/dbfile/enmo/undotbs1.dbf 18502624
/u01/app/dbfile/enmo/users01.dbf 18502624
/u01/app/dbfile/enmo/chang01.dbf 18502624
/u01/app/dbfile/enmo/lob_data01.dbf 18502624
/u01/app/dbfile/enmo/oggdata.dbf 18502624
/u01/app/dbfile/reccat.dbf 185026248 rows selected.
--正常运行时last_change#的值就是空SYS@enmo>select name,last_change# from v$datafile;NAME LAST_CHANGE#
-------------------------------------------------- ------------
/u01/app/dbfile/enmo/system01.dbf
/u01/app/dbfile/enmo/sysaux01.dbf
/u01/app/dbfile/enmo/undotbs1.dbf
/u01/app/dbfile/enmo/users01.dbf
/u01/app/dbfile/enmo/chang01.dbf
/u01/app/dbfile/enmo/lob_data01.dbf
/u01/app/dbfile/enmo/oggdata.dbf
/u01/app/dbfile/reccat.dbf8 rows selected.
2. 关闭数据库并移动控制文件
SYS@enmo>shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.[oracle@ora:enmo enmo]$mv control01.ctl control01.ctl.bak
[oracle@ora:enmo enmo]$mv control02.ctl control02.ctl.bak
3. 开启数据库到nomount;
SYS@enmo>startup nomount;
ORACLE instance started.Total System Global Area 1048576000 bytes
Fixed Size 8628640 bytes
Variable Size 796919392 bytes
Database Buffers 234881024 bytes
Redo Buffers 8146944 bytes
SYS@enmo>select status from v$instance;STATUS
------------------------------------
STARTED
4. 使用rman恢复历史备份的控制文件
RMAN> restore controlfile from autobackup;Starting restore at 2020-03-13 12:51:11allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=10 device type=DISKrecovery area destination: /u01/app/fra
database name (or database unique name) used for search: ENMO
channel ORA_DISK_1: AUTOBACKUP /u01/app/fra/ENMO/autobackup/2020_03_10/o1_mf_s_1034681351_h6g2d7x3_.bkp found in the recovery area
AUTOBACKUP search with format "%F" not attempted because DBID was not set
channel ORA_DISK_1: restoring control file from AUTOBACKUP /u01/app/fra/ENMO/autobackup/2020_03_10/o1_mf_s_1034681351_h6g2d7x3_.bkp
channel ORA_DISK_1: control file restore from AUTOBACKUP complete
output file name=/u01/app/dbfile/enmo/control01.ctl
output file name=/u01/app/dbfile/enmo/control02.ctl
Finished restore at 2020-03-13 12:51:13
5. 更新数据库到mount
SYS@enmo>alter database mount;Database altered.
6. 查看控制文件和数据文件中的scn号
--可以看到数据文件头中记录的scn(18504054)大于控制文件中记录的scn(18261588)SYS@enmo>set line 999
SYS@enmo>col name for a50
SYS@enmo>select status from v$instance;STATUS
------------------------------------
MOUNTEDSYS@enmo>select checkpoint_change# from v$database;CHECKPOINT_CHANGE#
------------------18261588SYS@enmo>select name,checkpoint_change# from v$datafile;NAME CHECKPOINT_CHANGE#
-------------------------------------------------- ------------------
/u01/app/dbfile/enmo/system01.dbf 18261588
/u01/app/dbfile/enmo/sysaux01.dbf 18261588
/u01/app/dbfile/enmo/undotbs1.dbf 18261588
/u01/app/dbfile/enmo/users01.dbf 18261588
/u01/app/dbfile/enmo/chang01.dbf 18261588
/u01/app/dbfile/enmo/lob_data01.dbf 18261588
/u01/app/dbfile/enmo/oggdata.dbf 18261588
/u01/app/dbfile/reccat.dbf 182615888 rows selected.SYS@enmo>select name,checkpoint_change# from v$datafile_header;NAME CHECKPOINT_CHANGE#
-------------------------------------------------- ------------------
/u01/app/dbfile/enmo/system01.dbf 18504054
/u01/app/dbfile/enmo/sysaux01.dbf 18504054
/u01/app/dbfile/enmo/undotbs1.dbf 18504054
/u01/app/dbfile/enmo/users01.dbf 18504054
/u01/app/dbfile/enmo/chang01.dbf 18504054
/u01/app/dbfile/enmo/lob_data01.dbf 18504054
/u01/app/dbfile/enmo/oggdata.dbf 18504054
/u01/app/dbfile/reccat.dbf 185040548 rows selected.SYS@enmo>select name,last_change# from v$datafile;NAME LAST_CHANGE#
-------------------------------------------------- ------------
/u01/app/dbfile/enmo/system01.dbf
/u01/app/dbfile/enmo/sysaux01.dbf
/u01/app/dbfile/enmo/undotbs1.dbf
/u01/app/dbfile/enmo/users01.dbf
/u01/app/dbfile/enmo/chang01.dbf
/u01/app/dbfile/enmo/lob_data01.dbf
/u01/app/dbfile/enmo/oggdata.dbf
/u01/app/dbfile/reccat.dbf8 rows selected.
7. 更新数据库为open
SYS@enmo>alter database open;
alter database open
*
ERROR at line 1:
ORA-01589: must use RESETLOGS or NORESETLOGS option for database openSYS@enmo>alter database open noresetlogs;
alter database open noresetlogs
*
ERROR at line 1:
ORA-01610: recovery using the BACKUP CONTROLFILE option must be done --恢复备份的控制文件不可以noresetlogs方式开库SYS@enmo>alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-01152: file 1 was not restored from a sufficiently old backup --说明使用了一个旧的控制文件与现有的数据文件的scn对不上
ORA-01110: data file 1: '/u01/app/dbfile/enmo/system01.dbf'SYS@enmo>recover database;
ORA-00283: recovery session canceled due to errors
ORA-01610: recovery using the BACKUP CONTROLFILE option must be done --直接恢复报错,必须执行使用备份的控制文件进行恢复数据库SYS@enmo>recover database using backup controlfile;
ORA-00279: change 18282978 generated at 03/10/2020 09:25:09 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_123_1033390448.arc
ORA-00280: change 18282978 for thread 1 is in sequence #123Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
auto
ORA-00279: change 18292695 generated at 03/10/2020 13:24:26 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_124_1033390448.arc
ORA-00280: change 18292695 for thread 1 is in sequence #124
ORA-00278: log file '/u01/app/orarch/enmo/1_123_1033390448.arc' no longer needed for this recoveryORA-00279: change 18293343 generated at 03/10/2020 13:37:38 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_125_1033390448.arc
ORA-00280: change 18293343 for thread 1 is in sequence #125
ORA-00278: log file '/u01/app/orarch/enmo/1_124_1033390448.arc' no longer needed for this recoveryORA-00279: change 18354143 generated at 03/11/2020 09:36:32 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_126_1033390448.arc
ORA-00280: change 18354143 for thread 1 is in sequence #126
ORA-00278: log file '/u01/app/orarch/enmo/1_125_1033390448.arc' no longer needed for this recoveryORA-00279: change 18454671 generated at 03/12/2020 15:35:37 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_127_1033390448.arc
ORA-00280: change 18454671 for thread 1 is in sequence #127
ORA-00278: log file '/u01/app/orarch/enmo/1_126_1033390448.arc' no longer needed for this recoveryORA-00279: change 18460259 generated at 03/12/2020 15:41:41 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_128_1033390448.arc
ORA-00280: change 18460259 for thread 1 is in sequence #128
ORA-00278: log file '/u01/app/orarch/enmo/1_127_1033390448.arc' no longer needed for this recoveryORA-00279: change 18463068 generated at 03/12/2020 15:56:59 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_129_1033390448.arc
ORA-00280: change 18463068 for thread 1 is in sequence #129
ORA-00278: log file '/u01/app/orarch/enmo/1_128_1033390448.arc' no longer needed for this recoveryORA-00279: change 18464597 generated at 03/12/2020 16:03:39 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_130_1033390448.arc
ORA-00280: change 18464597 for thread 1 is in sequence #130
ORA-00278: log file '/u01/app/orarch/enmo/1_129_1033390448.arc' no longer needed for this recoveryORA-00279: change 18465698 generated at 03/12/2020 16:04:21 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_131_1033390448.arc
ORA-00280: change 18465698 for thread 1 is in sequence #131
ORA-00278: log file '/u01/app/orarch/enmo/1_130_1033390448.arc' no longer needed for this recoveryORA-00279: change 18465714 generated at 03/12/2020 16:04:27 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_132_1033390448.arc
ORA-00280: change 18465714 for thread 1 is in sequence #132
ORA-00278: log file '/u01/app/orarch/enmo/1_131_1033390448.arc' no longer needed for this recoveryORA-00279: change 18465757 generated at 03/12/2020 16:04:47 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_133_1033390448.arc
ORA-00280: change 18465757 for thread 1 is in sequence #133
ORA-00278: log file '/u01/app/orarch/enmo/1_132_1033390448.arc' no longer needed for this recoveryORA-00279: change 18467282 generated at 03/12/2020 16:16:58 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_134_1033390448.arc
ORA-00280: change 18467282 for thread 1 is in sequence #134
ORA-00278: log file '/u01/app/orarch/enmo/1_133_1033390448.arc' no longer needed for this recoveryORA-00279: change 18469175 generated at 03/12/2020 16:25:01 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_135_1033390448.arc
ORA-00280: change 18469175 for thread 1 is in sequence #135
ORA-00278: log file '/u01/app/orarch/enmo/1_134_1033390448.arc' no longer needed for this recoveryORA-00279: change 18469629 generated at 03/12/2020 16:28:31 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_136_1033390448.arc
ORA-00280: change 18469629 for thread 1 is in sequence #136
ORA-00278: log file '/u01/app/orarch/enmo/1_135_1033390448.arc' no longer needed for this recoveryORA-00279: change 18469828 generated at 03/12/2020 16:30:07 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_137_1033390448.arc
ORA-00280: change 18469828 for thread 1 is in sequence #137
ORA-00278: log file '/u01/app/orarch/enmo/1_136_1033390448.arc' no longer needed for this recoveryORA-00279: change 18470068 generated at 03/12/2020 16:31:32 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_138_1033390448.arc
ORA-00280: change 18470068 for thread 1 is in sequence #138
ORA-00278: log file '/u01/app/orarch/enmo/1_137_1033390448.arc' no longer needed for this recoveryORA-00279: change 18470071 generated at 03/12/2020 16:33:14 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_139_1033390448.arc
ORA-00280: change 18470071 for thread 1 is in sequence #139
ORA-00278: log file '/u01/app/orarch/enmo/1_138_1033390448.arc' no longer needed for this recoveryORA-00279: change 18470909 generated at 03/12/2020 16:33:18 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_140_1033390448.arc
ORA-00280: change 18470909 for thread 1 is in sequence #140
ORA-00278: log file '/u01/app/orarch/enmo/1_139_1033390448.arc' no longer needed for this recoveryORA-00279: change 18484607 generated at 03/13/2020 09:24:42 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_141_1033390448.arc
ORA-00280: change 18484607 for thread 1 is in sequence #141
ORA-00278: log file '/u01/app/orarch/enmo/1_140_1033390448.arc' no longer needed for this recoveryORA-00279: change 18485561 generated at 03/13/2020 09:29:58 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_142_1033390448.arc
ORA-00280: change 18485561 for thread 1 is in sequence #142
ORA-00278: log file '/u01/app/orarch/enmo/1_141_1033390448.arc' no longer needed for this recoveryORA-00279: change 18502620 generated at 03/13/2020 11:35:04 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_143_1033390448.arc
ORA-00280: change 18502620 for thread 1 is in sequence #143
ORA-00278: log file '/u01/app/orarch/enmo/1_142_1033390448.arc' no longer needed for this recoveryORA-00279: change 18502623 generated at 03/13/2020 12:42:33 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_144_1033390448.arc
ORA-00280: change 18502623 for thread 1 is in sequence #144
ORA-00278: log file '/u01/app/orarch/enmo/1_143_1033390448.arc' no longer needed for this recoveryORA-00279: change 18502793 generated at 03/13/2020 12:42:37 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_145_1033390448.arc
ORA-00280: change 18502793 for thread 1 is in sequence #145
ORA-00278: log file '/u01/app/orarch/enmo/1_144_1033390448.arc' no longer needed for this recoveryORA-00279: change 18504054 generated at 03/13/2020 12:45:47 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_146_1033390448.arc
ORA-00280: change 18504054 for thread 1 is in sequence #146
ORA-00278: log file '/u01/app/orarch/enmo/1_145_1033390448.arc' no longer needed for this recoveryORA-00308: cannot open archived log '/u01/app/orarch/enmo/1_146_1033390448.arc' --提示需要146日志,但是归档目录没有,手动指定redo日志(具体是redo那个日志不太清楚,分别尝试每个redo)
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 7==SYS@enmo>recover database using backup controlfile;
ORA-00279: change 18504054 generated at 03/13/2020 12:45:47 needed for thread 1
ORA-00289: suggestion : /u01/app/orarch/enmo/1_146_1033390448.arc
ORA-00280: change 18504054 for thread 1 is in sequence #146Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
/u01/app/oraredo/enmo/redo04a.rdo
Log applied.
Media recovery complete.
8. 再次查看控制文件、数据文件头记录的scn号
SYS@enmo>set line 999
SYS@enmo>col name for a50
SYS@enmo>select status from v$instance;STATUS
------------------------------------
MOUNTEDSYS@enmo>select checkpoint_change# from v$database;CHECKPOINT_CHANGE#
------------------18261588SYS@enmo>select name,checkpoint_change# from v$datafile;NAME CHECKPOINT_CHANGE#
-------------------------------------------------- ------------------
/u01/app/dbfile/enmo/system01.dbf 18504055
/u01/app/dbfile/enmo/sysaux01.dbf 18504055
/u01/app/dbfile/enmo/undotbs1.dbf 18504055
/u01/app/dbfile/enmo/users01.dbf 18504055
/u01/app/dbfile/enmo/chang01.dbf 18504055
/u01/app/dbfile/enmo/lob_data01.dbf 18504055
/u01/app/dbfile/enmo/oggdata.dbf 18504055
/u01/app/dbfile/reccat.dbf 185040558 rows selected.SYS@enmo>select name,checkpoint_change# from v$datafile_header;NAME CHECKPOINT_CHANGE#
-------------------------------------------------- ------------------
/u01/app/dbfile/enmo/system01.dbf 18504055
/u01/app/dbfile/enmo/sysaux01.dbf 18504055
/u01/app/dbfile/enmo/undotbs1.dbf 18504055
/u01/app/dbfile/enmo/users01.dbf 18504055
/u01/app/dbfile/enmo/chang01.dbf 18504055
/u01/app/dbfile/enmo/lob_data01.dbf 18504055
/u01/app/dbfile/enmo/oggdata.dbf 18504055
/u01/app/dbfile/reccat.dbf 185040558 rows selected.SYS@enmo>select name,last_change# from v$datafile;NAME LAST_CHANGE#
-------------------------------------------------- ------------
/u01/app/dbfile/enmo/system01.dbf 18504055
/u01/app/dbfile/enmo/sysaux01.dbf 18504055
/u01/app/dbfile/enmo/undotbs1.dbf 18504055
/u01/app/dbfile/enmo/users01.dbf 18504055
/u01/app/dbfile/enmo/chang01.dbf 18504055
/u01/app/dbfile/enmo/lob_data01.dbf 18504055
/u01/app/dbfile/enmo/oggdata.dbf 18504055
/u01/app/dbfile/reccat.dbf 185040558 rows selected.
9. 使用resetlogs方式开启数据库
SYS@enmo>alter database open resetlogs;Database altered.
SYS@enmo>set line 999
SYS@enmo>col name for a50
SYS@enmo>select status from v$instance;STATUS
------------
OPENSYS@enmo>select checkpoint_change# from v$database;CHECKPOINT_CHANGE#
------------------18504060SYS@enmo>select name,checkpoint_change# from v$datafile;NAME CHECKPOINT_CHANGE#
-------------------------------------------------- ------------------
/u01/app/dbfile/enmo/system01.dbf 18504060
/u01/app/dbfile/enmo/sysaux01.dbf 18504060
/u01/app/dbfile/enmo/undotbs1.dbf 18504060
/u01/app/dbfile/enmo/users01.dbf 18504060
/u01/app/dbfile/enmo/chang01.dbf 18504060
/u01/app/dbfile/enmo/lob_data01.dbf 18504060
/u01/app/dbfile/enmo/oggdata.dbf 18504060
/u01/app/dbfile/reccat.dbf 185040608 rows selected.SYS@enmo>select name,checkpoint_change# from v$datafile_header;NAME CHECKPOINT_CHANGE#
-------------------------------------------------- ------------------
/u01/app/dbfile/enmo/system01.dbf 18504060
/u01/app/dbfile/enmo/sysaux01.dbf 18504060
/u01/app/dbfile/enmo/undotbs1.dbf 18504060
/u01/app/dbfile/enmo/users01.dbf 18504060
/u01/app/dbfile/enmo/chang01.dbf 18504060
/u01/app/dbfile/enmo/lob_data01.dbf 18504060
/u01/app/dbfile/enmo/oggdata.dbf 18504060
/u01/app/dbfile/reccat.dbf 185040608 rows selected.SYS@enmo>select name,last_change# from v$datafile;NAME LAST_CHANGE#
-------------------------------------------------- ------------
/u01/app/dbfile/enmo/system01.dbf
/u01/app/dbfile/enmo/sysaux01.dbf
/u01/app/dbfile/enmo/undotbs1.dbf
/u01/app/dbfile/enmo/users01.dbf
/u01/app/dbfile/enmo/chang01.dbf
/u01/app/dbfile/enmo/lob_data01.dbf
/u01/app/dbfile/enmo/oggdata.dbf
/u01/app/dbfile/reccat.dbf8 rows selected.
10. 查看化身的数据
RMAN> list incarnation;List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
------- ------- -------- ---------------- --- ---------- ----------
2 2 ENMO 850702656 PARENT 6835695 2019-09-20 18:11:28
1 1 ENMO 850702656 PARENT 16566762 2020-02-26 12:54:08
3 3 ENMO 850702656 CURRENT 18504056 2020-03-13 13:24:09 --从18504056开始新的数据库化身
墨天轮原文链接：https://www.modb.pro/db/22574（复制到浏览器中打开或者点击“阅读原文”）
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