Oracle數據庫文件損壞修復(斷電情況下)

現場情況：
    1、數據庫沒有作歸檔，
    2、數據都存放在system表空間
    3、沒有備份
狀況：
    操作系統由於磁盤原因出現宕機，用戶強行按電源關閉系統，數據庫無法啟動。
處理：
   

Sql代碼

1. SQL> recover database;   
2. ORA-00283: recovery session canceled due to errors   
3. ORA-12801: error signaled in parallel query server P002   
4. ORA-10562: Error occurred while applying redo to data block (file# 1, block#4568)   
5. ORA-10564: tablespace SYSTEM   
6. ORA-01110: data file 1: '/opt/oracle/oradata/orcl/system01.dbf'  
7. ORA-10561: block type 'TRANSACTION MANAGED INDEX BLOCK', data object# 576   
8. ORA-00600: internal error code, arguments: [6101]   
9.      

SQL> recover database;

ORA-00283: recovery session canceled due to errors

ORA-12801: error signaled in parallel query server P002

ORA-10562: Error occurred while applying redo to data block (file# 1, block#4568)

ORA-10564: tablespace SYSTEM

ORA-01110: data file 1: '/opt/oracle/oradata/orcl/system01.dbf'

ORA-10561: block type 'TRANSACTION MANAGED INDEX BLOCK', data object# 576

ORA-00600: internal error code, arguments: [6101]

 

檢查日志信息如下：

Oracle代碼

1. Mon Nov 19 15:38:50 2007  
2. ALTER DATABASE RECOVER  database     
3. Mon Nov 19 15:38:50 2007  
4. Media Recovery Start   
5.  parallel recovery started with 3 processes   
6. Mon Nov 19 15:38:50 2007  
7. Recovery of Online Redo Log: Thread 1 Group 3 Seq 16 Reading mem 0  
8.   Mem# 0 errs 0: /opt/oracle/oradata/orcl/redo03.log   
9. Mon Nov 19 15:38:50 2007  
10. Errors in file /opt/oracle/admin/orcl/bdump/orcl_p002_7917.trc:   
11. ORA-00600: internal error code, arguments: [6101], [0], [17], [0], [], [], [], []   
12. Mon Nov 19 15:38:50 2007  
13. Errors in file /opt/oracle/admin/orcl/bdump/orcl_p000_7913.trc:   
14. ORA-00600: internal error code, arguments: [3020], [2], [882], [8389490], [], [], [], []   
15. ORA-10567: Redo is inconsistent with data block (file# 2, block# 882)   
16. ORA-10564: tablespace UNDOTBS1   
17. ORA-01110: data file 2: '/opt/oracle/oradata/orcl/undotbs01.dbf'  
18. ORA-10560: block type 'KTU UNDO BLOCK'  
19. Mon Nov 19 15:38:51 2007  
20. Errors in file /opt/oracle/admin/orcl/bdump/orcl_p000_7913.trc:   
21. ORA-00600: internal error code, arguments: [3020], [2], [882], [8389490], [], [], [], []   
22. ORA-10567: Redo is inconsistent with data block (file# 2, block# 882)   
23. ORA-10564: tablespace UNDOTBS1   
24. ORA-01110: data file 2: '/opt/oracle/oradata/orcl/undotbs01.dbf'  
25. ORA-10560: block type 'KTU UNDO BLOCK'  
26. Mon Nov 19 15:38:51 2007  
27. Errors in file /opt/oracle/admin/orcl/bdump/orcl_p002_7917.trc:   
28. ORA-10562: Error occurred while applying redo to data block (file# 1, block# 4568)   
29. ORA-10564: tablespace SYSTEM   
30. ORA-01110: data file 1: '/opt/oracle/oradata/orcl/system01.dbf'  
31. ORA-10561: block type 'TRANSACTION MANAGED INDEX BLOCK', data object# 576  
32. ORA-00600: internal error code, arguments: [6101], [0], [17], [0], [], [], [], []   
33. Mon Nov 19 15:38:54 2007  
34. Errors in file /opt/oracle/admin/orcl/bdump/orcl_p001_7915.trc:   
35. ORA-00600: internal error code, arguments: [kddummy_blkchk], [1], [1658], [6101], [], [], [], []   
36. Mon Nov 19 15:38:54 2007  
37. Errors in file /opt/oracle/admin/orcl/bdump/orcl_p001_7915.trc:   
38. ORA-10562: Error occurred while applying redo to data block (file# 1, block# 1658)   
39. ORA-10564: tablespace SYSTEM   
40. ORA-01110: data file 1: '/opt/oracle/oradata/orcl/system01.dbf'  
41. ORA-10561: block type 'TRANSACTION MANAGED DATA BLOCK', data object# 237  
42. ORA-00607: Internal error occurred while making a change to a data block   
43. ORA-00600: internal error code, arguments: [kddummy_blkchk], [1], [1658], [6101], [], [], [], []   
44. Mon Nov 19 15:38:54 2007  
45. Media Recovery failed with error 12801  
46. ORA-283 signalled during: ALTER DATABASE RECOVER  database  ...  

Mon Nov 19 15:38:50 2007

ALTER DATABASE RECOVER  database 

Mon Nov 19 15:38:50 2007

Media Recovery Start

 parallel recovery started with 3 processes

Mon Nov 19 15:38:50 2007

Recovery of Online Redo Log: Thread 1 Group 3 Seq 16 Reading mem 0

  Mem# 0 errs 0: /opt/oracle/oradata/orcl/redo03.log

Mon Nov 19 15:38:50 2007

Errors in file /opt/oracle/admin/orcl/bdump/orcl_p002_7917.trc:

ORA-00600: internal error code, arguments: [6101], [0], [17], [0], [], [], [], []

Mon Nov 19 15:38:50 2007

Errors in file /opt/oracle/admin/orcl/bdump/orcl_p000_7913.trc:

ORA-00600: internal error code, arguments: [3020], [2], [882], [8389490], [], [], [], []

ORA-10567: Redo is inconsistent with data block (file# 2, block# 882)

ORA-10564: tablespace UNDOTBS1

ORA-01110: data file 2: '/opt/oracle/oradata/orcl/undotbs01.dbf'

ORA-10560: block type 'KTU UNDO BLOCK'

Mon Nov 19 15:38:51 2007

Errors in file /opt/oracle/admin/orcl/bdump/orcl_p000_7913.trc:

ORA-00600: internal error code, arguments: [3020], [2], [882], [8389490], [], [], [], []

ORA-10567: Redo is inconsistent with data block (file# 2, block# 882)

ORA-10564: tablespace UNDOTBS1

ORA-01110: data file 2: '/opt/oracle/oradata/orcl/undotbs01.dbf'

ORA-10560: block type 'KTU UNDO BLOCK'

Mon Nov 19 15:38:51 2007

Errors in file /opt/oracle/admin/orcl/bdump/orcl_p002_7917.trc:

ORA-10562: Error occurred while applying redo to data block (file# 1, block# 4568)

ORA-10564: tablespace SYSTEM

ORA-01110: data file 1: '/opt/oracle/oradata/orcl/system01.dbf'

ORA-10561: block type 'TRANSACTION MANAGED INDEX BLOCK', data object# 576

ORA-00600: internal error code, arguments: [6101], [0], [17], [0], [], [], [], []

Mon Nov 19 15:38:54 2007

Errors in file /opt/oracle/admin/orcl/bdump/orcl_p001_7915.trc:

ORA-00600: internal error code, arguments: [kddummy_blkchk], [1], [1658], [6101], [], [], [], []

Mon Nov 19 15:38:54 2007

Errors in file /opt/oracle/admin/orcl/bdump/orcl_p001_7915.trc:

ORA-10562: Error occurred while applying redo to data block (file# 1, block# 1658)

ORA-10564: tablespace SYSTEM

ORA-01110: data file 1: '/opt/oracle/oradata/orcl/system01.dbf'

ORA-10561: block type 'TRANSACTION MANAGED DATA BLOCK', data object# 237

ORA-00607: Internal error occurred while making a change to a data block

ORA-00600: internal error code, arguments: [kddummy_blkchk], [1], [1658], [6101], [], [], [], []

Mon Nov 19 15:38:54 2007

Media Recovery failed with error 12801

ORA-283 signalled during: ALTER DATABASE RECOVER  database  ...

從上面信息中抓取了一個信息：

Oracle代碼

1. ORA-10562: Error occurred while applying redo to data block (file# 1, block# 1658)  

ORA-10562: Error occurred while applying redo to data block (file# 1, block# 1658)

針對這個錯誤解決如下：

Oracle代碼

1. ORA-10562: Error occurred while applying redo to data block (file# string, block# string)   
2. Cause: See other errors on error stack.   
3. Action: Investigate why the error occurred and how important is the data block. Media and standby database recovery usually can continue if user allows recovery to corrupt this data block。  

ORA-10562: Error occurred while applying redo to data block (file# string, block# string)

Cause: See other errors on error stack.

Action: Investigate why the error occurred and how important is the data block. Media and standby database recovery usually can continue if user allows recovery to corrupt this data block。

從日志信息可以基本判斷問題如下：
當前在線日志損壞，導致undo回滾段出現問題，又由於系統突然掉電，系統表空間在重啟實例后要進行實例恢復，當前在線日志損壞，系統表空間無法進行recover，因而出現了上面的錯誤。
找到了問題，解決訪問就有了。
由於沒有備份，數據庫也運行在非歸檔模式下，所以恢復如下步驟：

Sql代碼

1. SQL>startup mount   
2. SQL>recover database using backup controlfile until cancel;   
3. SQL>alter database open resetlogs;   
4. SQL> startup mount   
5. SQL> alter system set “_allow_resetlogs_corruption”=true scope=spfile;   
6. SQL>shutdown immediate   
7. SQL> startup mount   
8. SQL> alter database open resetlogs;   
9. SQL> startup  

SQL>startup mount

SQL>recover database using backup controlfile until cancel;

SQL>alter database open resetlogs;

SQL> startup mount

SQL> alter system set “_allow_resetlogs_corruption”=true scope=spfile;

SQL>shutdown immediate

SQL> startup mount

SQL> alter database open resetlogs;

SQL> startup

基本恢復步驟：

Sql代碼

1. SQL>startup mount   
2. SQL>recover database using backup controlfile until cancel;   
3. Cancel   
4. SQL>alter database open resetlogs;   
5. #此時會提示system表空間需要恢復，但是由於當前日志損壞，無法進行恢復，所以需要加入#隱含參數，oracle才不會監測scn的一致性，才能打開數據庫。   
6. #重啟數據庫加入隱含參數   
7. SQL> startup mount   
8. SQL> alter system set “_allow_resetlogs_corruption”=true scope=spfile;   
9. SQL> shutdown immediate   
10. SQL> startup mount   
11. SQL> alter database open resetlogs;   
12. alter database open resetlogs   
13. *   
14. ERROR at line 1:   
15. ORA-01092: ORACLE instance terminated. Disconnection forced   
16. #不管這些，再次登錄sqlplus起動數據庫   
17. SQL*Plus: Release 10.2.0.1.0 - Production on Fri Nov 16 08:03:43 2007   
18. Copyright (c) 1982, 2005, Oracle.  All rights reserved.   
19. Connected to:   
20. Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production   
21. With the Partitioning, OLAP and Data Mining options   
22. SQL>startup  

SQL>startup mount

SQL>recover database using backup controlfile until cancel;

Cancel

SQL>alter database open resetlogs;

#此時會提示system表空間需要恢復，但是由於當前日志損壞，無法進行恢復，所以需要加入#隱含參數，oracle才不會監測scn的一致性，才能打開數據庫。

#重啟數據庫加入隱含參數

SQL> startup mount

SQL> alter system set “_allow_resetlogs_corruption”=true scope=spfile;

SQL> shutdown immediate

SQL> startup mount

SQL> alter database open resetlogs;

alter database open resetlogs

*

ERROR at line 1:

ORA-01092: ORACLE instance terminated. Disconnection forced

#不管這些，再次登錄sqlplus起動數據庫

SQL*Plus: Release 10.2.0.1.0 - Production on Fri Nov 16 08:03:43 2007

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

Connected to:

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production

With the Partitioning, OLAP and Data Mining options

SQL>startup

數據庫正常打開，exp備份需要的數據，然后重新建庫，導入數據。