丢失全部数据文件，控制文件，redo log file（9201）——处理方法二

丢失全部数据文件，控制文件，redo log file（9201） 作者：张大鹏（[/b]Lunar[/b]）[/b][/b] [/b] Email: moonlunar@163.com MSN: lunar52@hotmail.com

二 使用重建控制文件做（热备）恢复

做热备份前的测试数据

SQL> conn lunar/lunar Connected. SQL> truncate table test; Table truncated. SQL> insert into test values(15); 1 row created. SQL> insert into test values(16); 1 row created. SQL> commit; Commit complete.

热备数据库

SQL> conn / as sysdba Connected. SQL> archive log list; Database log mode Archive Mode Automatic archival Enabled Archive destination e:/oracle/oradata/test/archive Oldest online log sequence 1 Next log sequence to archive 1 Current log sequence 1 SQL> @D:/hot_backup/hotbackup_for_win 已复制 1 个文件。 已复制 1 个文件。 已复制 1 个文件。 已复制 1 个文件。 已复制 1 个文件。 已复制 1 个文件。 已复制 1 个文件。 已复制 1 个文件。 SQL>

做热备份后的测试数据

提交部分测试数据（备份后增加的）

SQL> conn lunar/lunar Connected. SQL> select * from test; 15 16 2 rows selected. SQL> insert into test values(25); 1 row created. SQL> insert into test values(26); 1 row created. SQL> commit; Commit complete. SQL> insert into test values(27); 1 row created. SQL>

再开一个窗口，产生检查点

Microsoft Windows 2000 [Version 5.00.2195] (C) 版权所有 1985-2000 Microsoft Corp. C:/>set nls_lang=AMERICAN_AMERICA.US7ASCII C:/>sqlplus "/ as sysdba" SQL*Plus: Release 9.2.0.1.0 - Production on Tue Feb 5 21:28:47 2002 Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved. Connected to: Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production With the Partitioning, OLAP and Oracle Data Mining options JServer Release 9.2.0.1.0 - Production SQL> alter system checkpoint; System altered. SQL>

回到原来的窗口，继续添加数据

SQL> insert into test values(28); 1 row created. SQL>

回到as sysdba的窗口，switch logfile

SQL> alter system switch logfile; System altered. SQL> archive log list; Database log mode Archive Mode Automatic archival Enabled Archive destination e:/oracle/oradata/test/archive Oldest online log sequence 1 Next log sequence to archive 3 Current log sequence 3 SQL>

回到原来的窗口，commit后，继续添加数据

SQL> commit; Commit complete. SQL> insert into test values(29); 1 row created. SQL>

回到as sysdba的窗口，产生检查点

SQL> alter system checkpoint; System altered. SQL>

回到原来的窗口，不commit继续添加数据

SQL> insert into test values(30); 1 row created. SQL> select * from test; 15 (new datas after hot backup) 16 25 26 ( commit ) 27 (checkpoint ) 28 ( switch logfile ) (commit ) 29 (checkpoint ) 30 ( shutdown abort) 8 rows selected. SQL> 只能恢复到switch logfile前全部commit的数据，即：26

回到as sysdba的窗口，模拟数据库crash

SQL> shutdown abort ORACLE instance shut down. SQL>

删除所有数据库文件

SQL> host Microsoft Windows 2000 [Version 5.00.2195] (C) 版权所有 1985-2000 Microsoft Corp. C:/>del E:/oracle/ora92/test/*.* E:/oracle/ora92/test/*.*, 是否确认 (Y/N) ? y C:/>dir E:/oracle/ora92/test 驱动器 E 中的卷是 ORACLE 卷的序列号是 707A-C50C E:/oracle/ora92/test 的目录 2002-01-13 21:59 <DIR> . 2002-01-13 21:59 <DIR> .. 0 个文件 0 字节 2 个目录 2,802,962,432 可用字节 C:/> C:/>exit SQL>

恢复数据库

将最近的热备拷贝回来

C:/>copy D:/hot_backup/*.* E:/oracle/ora92/test D:/hot_backup/hotbackup_for_win.sql D:/hot_backup/hotbackup.sql D:/hot_backup/hotbackup.log D:/hot_backup/SYSTEM01.DBF D:/hot_backup/UNDOTBS01.DBF D:/hot_backup/DRSYS01.DBF D:/hot_backup/INDX01.DBF D:/hot_backup/TOOLS01.DBF D:/hot_backup/USERS01.DBF D:/hot_backup/XDB01.DBF D:/hot_backup/RMAN01.DBF D:/hot_backup/CONTROL02.CTL D:/hot_backup/test_ora_1972.trc 已复制 13 个文件。 C:/> C:/>exit SQL>

编辑并修改备份的控制文件（backup to trace）

CREATE CONTROLFILE REUSE DATABASE "TEST1" RESETLOGS ARCHIVELOG MAXLOGFILES 5 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 1 MAXLOGHISTORY 226 LOGFILE GROUP 1 'E:/ORACLE/ORA92/TEST/REDO01.LOG' SIZE 30M, GROUP 2 'E:/ORACLE/ORA92/TEST/REDO02.LOG' SIZE 30M, GROUP 3 'E:/ORACLE/ORA92/TEST/REDO03.LOG' SIZE 30M, GROUP 4 ( 'E:/ORACLE/ORA92/TEST/REDO04A.LOG', 'E:/ORACLE/ORA92/TEST/REDO04B.LOG' ) SIZE 1M DATAFILE 'E:/ORACLE/ORA92/TEST/SYSTEM01.DBF', 'E:/ORACLE/ORA92/TEST/UNDOTBS01.DBF', 'E:/ORACLE/ORA92/TEST/DRSYS01.DBF', 'E:/ORACLE/ORA92/TEST/INDX01.DBF', 'E:/ORACLE/ORA92/TEST/TOOLS01.DBF', 'E:/ORACLE/ORA92/TEST/USERS01.DBF', 'E:/ORACLE/ORA92/TEST/XDB01.DBF', 'E:/ORACLE/ORA92/TEST/RMAN01.DBF' CHARACTER SET ZHS16GBK ;

nomount数据库

SQL> conn / as sysdba Connected to an idle instance. SQL> startup nomount ORACLE instance started. Total System Global Area 135338868 bytes Fixed Size 453492 bytes Variable Size 109051904 bytes Database Buffers 25165824 bytes Redo Buffers 667648 bytes SQL>

重建控制文件

SQL> CREATE CONTROLFILE REUSE DATABASE "TEST1" RESETLOGS ARCHIVELOG 2 MAXLOGFILES 5 3 MAXLOGMEMBERS 3 4 MAXDATAFILES 100 5 MAXINSTANCES 1 6 MAXLOGHISTORY 226 7 LOGFILE 8 GROUP 1 'E:/ORACLE/ORA92/TEST/REDO01.LOG' SIZE 30M, 9 GROUP 2 'E:/ORACLE/ORA92/TEST/REDO02.LOG' SIZE 30M, 10 GROUP 3 'E:/ORACLE/ORA92/TEST/REDO03.LOG' SIZE 30M, 11 GROUP 4 ( 12 'E:/ORACLE/ORA92/TEST/REDO04A.LOG', 13 'E:/ORACLE/ORA92/TEST/REDO04B.LOG' 14 ) SIZE 1M 15 DATAFILE 16 'E:/ORACLE/ORA92/TEST/SYSTEM01.DBF', 17 'E:/ORACLE/ORA92/TEST/UNDOTBS01.DBF', 18 'E:/ORACLE/ORA92/TEST/DRSYS01.DBF', 19 'E:/ORACLE/ORA92/TEST/INDX01.DBF', 20 'E:/ORACLE/ORA92/TEST/TOOLS01.DBF', 21 'E:/ORACLE/ORA92/TEST/USERS01.DBF', 22 'E:/ORACLE/ORA92/TEST/XDB01.DBF', 23 'E:/ORACLE/ORA92/TEST/RMAN01.DBF' 24 CHARACTER SET ZHS16GBK 25 ; Control file created. SQL>

恢复数据库（USING BACKUP CONTROLFILE）

SQL> RECOVER DATABASE USING BACKUP CONTROLFILE ORA-00279: change 1087799 generated at 02/05/2002 21:19:44 needed for thread 1 ORA-00289: suggestion : E:/ORACLE/ORADATA/TEST/ARCHIVE/1_1.ARC ORA-00280: change 1087799 for thread 1 is in sequence #1 Specify log: {<RET>=suggested | filename | AUTO | CANCEL} auto ORA-00279: change 1087918 generated at 02/05/2002 21:23:09 needed for thread 1 ORA-00289: suggestion : E:/ORACLE/ORADATA/TEST/ARCHIVE/1_2.ARC ORA-00280: change 1087918 for thread 1 is in sequence #2 ORA-00278: log file 'E:/ORACLE/ORADATA/TEST/ARCHIVE/1_1.ARC' no longer needed for this recovery ORA-00279: change 1088081 generated at 02/05/2002 21:31:09 needed for thread 1 ORA-00289: suggestion : E:/ORACLE/ORADATA/TEST/ARCHIVE/1_3.ARC ORA-00280: change 1088081 for thread 1 is in sequence #3 ORA-00278: log file 'E:/ORACLE/ORADATA/TEST/ARCHIVE/1_2.ARC' no longer needed for this recovery ORA-00308: cannot open archived log 'E:/ORACLE/ORADATA/TEST/ARCHIVE/1_3.ARC' ORA-27041: unable to open file OSD-04002: 无法打开文件 O/S-Error: (OS 2) 系统找不到指定的文件。 SQL> host dir E:/oracle/ora92/test 驱动器 E 中的卷是 ORACLE 卷的序列号是 707A-C50C E:/oracle/ora92/test 的目录 2002-01-13 21:59 <DIR> . 2002-01-13 21:59 <DIR> .. 2002-02-05 21:49 367,009,792 SYSTEM01.DBF 2002-02-05 21:49 52,436,992 UNDOTBS01.DBF 2002-02-05 21:49 104,865,792 DRSYS01.DBF 2002-02-05 21:49 31,465,472 INDX01.DBF 2002-02-05 21:49 31,465,472 TOOLS01.DBF 2002-02-05 21:49 31,465,472 USERS01.DBF 2002-02-05 21:49 52,436,992 XDB01.DBF 2002-02-05 21:49 52,436,992 RMAN01.DBF 2002-02-05 21:49 1,875,968 CONTROL02.CTL 2002-02-05 21:49 1,875,968 CONTROL03.CTL 10 个文件 727,334,912 字节 2 个目录 2,075,586,560 可用字节 SQL>

再次恢复（until cancel USING BACKUP CONTROLFILE）

SQL> ALTER DATABASE OPEN RESETLOGS; ALTER DATABASE OPEN RESETLOGS * ERROR at line 1: ORA-01113: file 1 needs media recovery ORA-01110: data file 1: 'E:/ORACLE/ORA92/TEST/SYSTEM01.DBF' SQL> RECOVER DATABASE until cancel USING BACKUP CONTROLFILE; ORA-00279: change 1088081 generated at 02/05/2002 21:31:09 needed for thread 1 ORA-00289: suggestion : E:/ORACLE/ORADATA/TEST/ARCHIVE/1_3.ARC ORA-00280: change 1088081 for thread 1 is in sequence #3 Specify log: {<RET>=suggested | filename | AUTO | CANCEL} cancel Media recovery cancelled. SQL>

RESETLOGS打开数据库

SQL> ALTER DATABASE OPEN RESETLOGS; Database altered. SQL> host dir E:/oracle/ora92/test 驱动器 E 中的卷是 ORACLE 卷的序列号是 707A-C50C E:/oracle/ora92/test 的目录 2002-01-13 21:59 <DIR> . 2002-01-13 21:59 <DIR> .. 2002-02-05 21:52 31,457,792 REDO01.LOG 2002-02-05 21:52 31,457,792 REDO02.LOG 2002-02-05 21:52 31,457,792 REDO03.LOG 2002-02-05 21:52 1,049,088 REDO04A.LOG 2002-02-05 21:52 1,049,088 REDO04B.LOG 2002-02-05 21:52 367,009,792 SYSTEM01.DBF 2002-02-05 21:52 52,436,992 UNDOTBS01.DBF 2002-02-05 21:52 104,865,792 DRSYS01.DBF 2002-02-05 21:52 31,465,472 INDX01.DBF 2002-02-05 21:52 31,465,472 TOOLS01.DBF 2002-02-05 21:52 31,465,472 USERS01.DBF 2002-02-05 21:52 52,436,992 XDB01.DBF 2002-02-05 21:52 52,436,992 RMAN01.DBF 2002-02-05 21:49 1,875,968 CONTROL02.CTL 2002-02-05 21:49 1,875,968 CONTROL03.CTL 15 个文件 823,806,464 字节 2 个目录 1,979,092,992 可用字节 SQL>

验证恢复

SQL> archive log list; Database log mode Archive Mode Automatic archival Enabled Archive destination e:/oracle/oradata/test/archive Oldest online log sequence 0 Next log sequence to archive 1 Current log sequence 1 SQL> conn lunar/lunar Connected. SQL> select * from test; 15 16 25 26 4 rows selected. SQL> 丢失了部分数据commit的数据，因为那些数据是在redo中的，还没有被归档