通过bbed模拟ORA-00607/ORA-00600 4194 故障

在数据库恢复的案例中,遇到system rollback异常的故障算是中彩票了.处理起来比较麻烦,有些情况甚至是无法处理.这里通过试验模拟ORA-00607/ORA-00600[4194].类此的错误在一次银联的数据库恢复中也遇到过,不过当时由于功底不深,理解出现部分误差.
通过bbed模拟ORA-00607/ORA-00600[4194]错误

[oracle@xifenfei ~]$ bbed listfile=list mode=edit password=blockedit

BBED: Release 2.0.0.0.0 - Limited Production on Fri Nov 4 22:59:51 2011

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

************* !!! For Oracle Internal Use only !!! ***************

BBED> info
 File#  Name                                                        Size(blks)
 -----  ----                                                        ----------
     1  /u01/oracle/oradata/XFF/system01.dbf                                 0
     2  /u01/oracle/oradata/XFF/undotbs01.dbf                                0
     3  /u01/oracle/oradata/XFF/sysaux01.dbf                                 0
     4  /u01/oracle/oradata/XFF/users01.dbf                                  0
     5  /u01/oracle/oradata/XFF/datfttuser.dbf                               0

BBED> set block 9
        BLOCK#          9

BBED> map
 File: /u01/oracle/oradata/XFF/system01.dbf (1)
 Block: 9                                     Dba:0x00400009
------------------------------------------------------------
 Unlimited Undo Segment Header

 struct kcbh, 20 bytes                      @0       

 struct ktech, 72 bytes                     @20      

 struct ktemh, 16 bytes                     @92      

 struct ktetb[6], 48 bytes                  @108     

 struct ktuxc, 104 bytes                    @4148    

 struct ktuxe[255], 10200 bytes             @4252    

 ub4 tailchk                                @8188    


BBED> p ktuxc
struct ktuxc, 104 bytes                     @4148    
   struct ktuxcscn, 8 bytes                 @4148    
      ub4 kscnbas                           @4148     0x0006c75b
      ub2 kscnwrp                           @4152     0x0000
   struct ktuxcuba, 8 bytes                 @4156    
      ub4 kubadba                           @4156     0x00400012
      ub2 kubaseq                           @4160     0x0037
      ub1 kubarec                           @4162     0x1f
   sb2 ktuxcflg                             @4164     1 (KTUXCFSK)
   ub2 ktuxcseq                             @4166     0x0037
   sb2 ktuxcnfb                             @4168     1            <==free undo block num
   ub4 ktuxcinc                             @4172     0x00000000
   sb2 ktuxcchd                             @4176     34
   sb2 ktuxcctl                             @4178     32
   ub2 ktuxcmgc                             @4180     0x8002
   ub4 ktuxcopt                             @4188     0x7ffffffe
   struct ktuxcfbp[0], 12 bytes             @4192    
      struct ktufbuba, 8 bytes              @4192    
         ub4 kubadba                        @4192     0x00400013    <==uba (模拟试验修改为其他uba地址)
         ub2 kubaseq                        @4196     0x0037        <==uba sequence
         ub1 kubarec                        @4198     0x05
      sb2 ktufbext                          @4200     1
      sb2 ktufbspc                          @4202     7200
   struct ktuxcfbp[1], 12 bytes             @4204    
      struct ktufbuba, 8 bytes              @4204    
         ub4 kubadba                        @4204     0x00000000
         ub2 kubaseq                        @4208     0x0035
         ub1 kubarec                        @4210     0x2a
      sb2 ktufbext                          @4212     5
      sb2 ktufbspc                          @4214     3446
   struct ktuxcfbp[2], 12 bytes             @4216    
      struct ktufbuba, 8 bytes              @4216    
         ub4 kubadba                        @4216     0x00000000
         ub2 kubaseq                        @4220     0x0035
         ub1 kubarec                        @4222     0x37
      sb2 ktufbext                          @4224     5
      sb2 ktufbspc                          @4226     1336
   struct ktuxcfbp[3], 12 bytes             @4228    
      struct ktufbuba, 8 bytes              @4228    
         ub4 kubadba                        @4228     0x00000000
         ub2 kubaseq                        @4232     0x0000
         ub1 kubarec                        @4234     0x00
      sb2 ktufbext                          @4236     0
      sb2 ktufbspc                          @4238     0
   struct ktuxcfbp[4], 12 bytes             @4240    
      struct ktufbuba, 8 bytes              @4240    
         ub4 kubadba                        @4240     0x00000000
         ub2 kubaseq                        @4244     0x0000
         ub1 kubarec                        @4246     0x00
      sb2 ktufbext                          @4248     0
      sb2 ktufbspc                          @4250     0

BBED> set dba 0x00400013
        DBA             0x00400013 (4194323 1,19)

BBED> p ktubh
struct ktubh, 26 bytes                      @20      
   struct ktubhxid, 8 bytes                 @20      
      ub2 kxidusn                           @20       0x0000
      ub2 kxidslt                           @22       0x0020
      ub4 kxidsqn                           @24       0x00000029
   ub2 ktubhseq                             @28       0x0037    <==uba seq
   ub1 ktubhcnt                             @30       0x05
   ub1 ktubhirb                             @31       0x05
   ub1 ktubhicl                             @32       0x00
   ub1 ktubhflg                             @33       0x00
   ub2 ktubhidx[0]                          @34       0x1fe8
   ub2 ktubhidx[1]                          @36       0x1f2c
   ub2 ktubhidx[2]                          @38       0x1e70
   ub2 ktubhidx[3]                          @40       0x1db4
   ub2 ktubhidx[4]                          @42       0x1cf8
   ub2 ktubhidx[5]                          @44       0x1c3c

BBED> set dba 0x00400012
        DBA             0x00400012 (4194322 1,18)

BBED> p ktubh
struct ktubh, 86 bytes                      @20      
   struct ktubhxid, 8 bytes                 @20      
      ub2 kxidusn                           @20       0x0000
      ub2 kxidslt                           @22       0x0020
      ub4 kxidsqn                           @24       0x00000029
   ub2 ktubhseq                             @28       0x0037
   ub1 ktubhcnt                             @30       0x23
   ub1 ktubhirb                             @31       0x23
   ub1 ktubhicl                             @32       0x00
   ub1 ktubhflg                             @33       0x00
   ub2 ktubhidx[0]                          @34       0x1fe8
   …………
   ub2 ktubhidx[35]                         @104      0x00b4

BBED> set block 9
        BLOCK#          9

BBED> set count 16
        COUNT           16

BBED> m /x 12004000 offset 4192
Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y
 File: /u01/oracle/oradata/XFF/system01.dbf (1)
 Block: 9                Offsets: 4192 to 4207           Dba:0x00400009
------------------------------------------------------------------------
 12004000 37000500 0100201c 00000000 

 <32 bytes per line>

BBED>  p ktuxc
struct ktuxc, 104 bytes                     @4148    
   struct ktuxcscn, 8 bytes                 @4148    
      ub4 kscnbas                           @4148     0x0006c75b
      ub2 kscnwrp                           @4152     0x0000
   struct ktuxcuba, 8 bytes                 @4156    
      ub4 kubadba                           @4156     0x00400012
      ub2 kubaseq                           @4160     0x0037
      ub1 kubarec                           @4162     0x1f
   sb2 ktuxcflg                             @4164     1 (KTUXCFSK)
   ub2 ktuxcseq                             @4166     0x0037
   sb2 ktuxcnfb                             @4168     1
   ub4 ktuxcinc                             @4172     0x00000000
   sb2 ktuxcchd                             @4176     34
   sb2 ktuxcctl                             @4178     32
   ub2 ktuxcmgc                             @4180     0x8002
   ub4 ktuxcopt                             @4188     0x7ffffffe
   struct ktuxcfbp[0], 12 bytes             @4192    
      struct ktufbuba, 8 bytes              @4192    
         ub4 kubadba                        @4192     0x00400012  <==uba已经被修改
         ub2 kubaseq                        @4196     0x0037
         ub1 kubarec                        @4198     0x05
      sb2 ktufbext                          @4200     1
      sb2 ktufbspc                          @4202     7200
   struct ktuxcfbp[1], 12 bytes             @4204    
      struct ktufbuba, 8 bytes              @4204    
         ub4 kubadba                        @4204     0x00000000
         ub2 kubaseq                        @4208     0x0035
         ub1 kubarec                        @4210     0x2a
      sb2 ktufbext                          @4212     5
      sb2 ktufbspc                          @4214     3446
   struct ktuxcfbp[2], 12 bytes             @4216    
      struct ktufbuba, 8 bytes              @4216    
         ub4 kubadba                        @4216     0x00000000
         ub2 kubaseq                        @4220     0x0035
         ub1 kubarec                        @4222     0x37
      sb2 ktufbext                          @4224     5
      sb2 ktufbspc                          @4226     1336
   struct ktuxcfbp[3], 12 bytes             @4228    
      struct ktufbuba, 8 bytes              @4228    
         ub4 kubadba                        @4228     0x00000000
         ub2 kubaseq                        @4232     0x0000
         ub1 kubarec                        @4234     0x00
      sb2 ktufbext                          @4236     0
      sb2 ktufbspc                          @4238     0
   struct ktuxcfbp[4], 12 bytes             @4240    
      struct ktufbuba, 8 bytes              @4240    
         ub4 kubadba                        @4240     0x00000000
         ub2 kubaseq                        @4244     0x0000
         ub1 kubarec                        @4246     0x00
      sb2 ktufbext                          @4248     0
      sb2 ktufbspc                          @4250     0

BBED> sum apply
Check value for File 1, Block 9:
current = 0xe686, required = 0xe686

启动数据库

SQL> startup
ORACLE instance started.

Total System Global Area  318767104 bytes
Fixed Size                  1219160 bytes
Variable Size              96470440 bytes
Database Buffers          213909504 bytes
Redo Buffers                7168000 bytes
Database mounted.
ORA-01092: ORACLE instance terminated. Disconnection forced

alert日志

Fri Nov  4 23:10:37 2011
SMON: enabling cache recovery
Fri Nov  4 23:10:37 2011
ARC2: Archival started
ARC0: STARTING ARCH PROCESSES COMPLETE
ARC0: Becoming the heartbeat ARCH
ARC2 started with pid=18, OS id=21535
Fri Nov  4 23:10:38 2011
Errors in file /u01/oracle/admin/XFF/udump/xff_ora_21529.trc:
ORA-00600: internal error code, arguments: [4194], [35], [6], [], [], [], [], []
Fri Nov  4 23:10:41 2011
Doing block recovery for file 1 block 18
Block recovery from logseq 2, block 48668 to scn 458453
Fri Nov  4 23:10:41 2011
Recovery of Online Redo Log: Thread 1 Group 1 Seq 2 Reading mem 0
  Mem# 0 errs 0: /u01/oracle/oradata/XFF/redo01.log
Block recovery stopped at EOT rba 2.48670.16
Block recovery completed at rba 2.48670.16, scn 0.458451
Doing block recovery for file 1 block 9
Block recovery from logseq 2, block 48668 to scn 458450
Fri Nov  4 23:10:41 2011
Recovery of Online Redo Log: Thread 1 Group 1 Seq 2 Reading mem 0
  Mem# 0 errs 0: /u01/oracle/oradata/XFF/redo01.log
Block recovery completed at rba 2.48670.16, scn 0.458451
Fri Nov  4 23:10:41 2011
Errors in file /u01/oracle/admin/XFF/udump/xff_ora_21529.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-00607: Internal error occurred while making a change to a data block
ORA-00600: internal error code, arguments: [4194], [35], [6], [], [], [], [], []
Error 604 happened during db open, shutting down database
USER: terminating instance due to error 604
Instance terminated by USER, pid = 21529
ORA-1092 signalled during: ALTER DATABASE OPEN...

创建控制文件遭遇ORA-00600[3753]故障解决

一位网友的数据库正常关闭,然后控制文件意外丢失,需要通过trace中的信息重建控制文件,但是在重建的过程中,出现ORA-00600[3753]错误,远程帮忙处理,记录处理过程如下
1.启动数据库至nomount状态,然后尝试noresetlogs模式重建控制文件

SQL>@XFF_NORESETLOGS_CTL.sql
CREATE CONTROLFILE REUSE DATABASE "ORA10G" NORESETLOGS  ARCHIVELOG
*
第 1 行出现错误:
ORA-01503: CREATE CONTROLFILE 失败
ORA-00600: 内部错误代码, 参数: [3753], [3], [2], [], [], [], [], []

2.检查alert日志

Tue Aug 07 20:40:47 2012
WARNING: Default Temporary Tablespace not specified in CREATE DATABASE command
Default Temporary Tablespace will be necessary for a locally managed database in future release
Tue Aug 07 20:40:48 2012
Errors in file d:\oracle\product\10.2.0\db_1\admin\ora10g\udump\ora10g_ora_11596.trc:
ORA-00600: 内部错误代码, 参数: [3753], [3], [2], [], [], [], [], []

Tue Aug 07 20:40:53 2012
Errors in file d:\oracle\product\10.2.0\db_1\admin\ora10g\udump\ora10g_ora_11596.trc:
ORA-00600: 内部错误代码, 参数: [3753], [3], [2], [], [], [], [], []

ORA-1503 signalled during: CREATE CONTROLFILE REUSE DATABASE "ORA10G" NORESETLOGS  ARCHIVELOG

3.分析trace文件

Tue Aug 07 20:40:48 2012
ORACLE V10.2.0.1.0 - Production vsnsta=0
vsnsql=14 vsnxtr=3
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
Windows NT Version V6.1 Service Pack 1
CPU                 : 2 - type 586, 2 Physical Cores
Process Affinity    : 0x00000000
Memory (Avail/Total): Ph:166M/1901M, Ph+PgF:619M/5536M, VA:812M/2047M
Instance name: ora10g

Redo thread mounted by this instance: 0 <none>

Oracle process number: 16

Windows thread id: 11596, image: ORACLE.EXE (SHAD)


*** SERVICE NAME:() 2012-08-07 20:40:48.413
*** SESSION ID:(158.7) 2012-08-07 20:40:48.413
*** 2012-08-07 20:40:48.413
ksedmp: internal or fatal error
ORA-00600: 内部错误代码, 参数: [3753], [3], [2], [], [], [], [], []
Current SQL statement for this session:
CREATE CONTROLFILE REUSE DATABASE "ORA10G" NORESETLOGS  ARCHIVELOG
…………
----- Call Stack Trace -----
calling              call     entry                argument values in hex      
location             type     point                (? means dubious value)     
-------------------- -------- -------------------- ----------------------------
_ksedst+38           CALLrel  _ksedst1+0           0 1
_ksedmp+898          CALLrel  _ksedst+0            0
_ksfdmp+14           CALLrel  _ksedmp+0            3
603A816A             CALLreg  00000000             87CF110 3
603A83FF             CALLrel  603A80D8             87CF110 8191090 EA9 2 8CCC438
_ksesic2+59          CALLrel  _kgesiv+0            87CF110 8191090 EA9 2 8CCC438
                                                   EA9 2 8CCC438
__VInfreq__kctbce+1  CALLrel  _ksesic2+0           EA9 0 3 0 0 2 0
63                                                 
_kcfccfl+356         CALLrel  _kctbce+0            543414C 81DB8A8
_cdbdrv+1037         CALLrel  _kcfccfl+0           543414C 1 8CCD060 8CCD04C
                                                   19000 3
_opiexe+11999        CALLrel  _cdbdrv+0            1
_opiosq0+6088        CALLrel  _opiexe+0            4 0 8CCD894
_kpooprx+232         CALLrel  _opiosq0+0           3 E 8CCD9AC A4
_kpoal8+775          CALLrel  _kpooprx+0           8CCF6CC 8196414 A16 1 0 A4
_opiodr+1099         CALLreg  00000000             5E 17 8CCF6C8
60FEFF8D             CALLreg  00000000             5E 17 8CCF6C8 0
_opitsk+1017         CALL???  00000000             
_opiino+1087         CALLrel  _opitsk+0            0 0
_opiodr+1099         CALLreg  00000000             3C 4 8CCFC60
_opidrv+819          CALLrel  _opiodr+0            3C 4 8CCFC60 0
_sou2o+45            CALLrel  _opidrv+0            3C 4 8CCFC60
_opimai_real+112     CALLrel  _sou2o+0             8CCFC54 3C 4 8CCFC60
_opimai+92           CALLrel  _opimai_real+0       2 8CCFC8C
_OracleThreadStart@  CALLrel  _opimai+0            
4+708                                              
__pRawDllMain+10931  CALLptr  00000000             
2903                                               
__pRawDllMain+12925  CALLreg  00000000             
4809                                               
__pRawDllMain+12925  CALLrel  __pRawDllMain+12925  
4761                          4772                 
 
--------------------- Binary Stack Dump ---------------------

    ----------------------------------------
    SO: 4FB3DF5C, type: 4, owner: 4FA4CBFC, flag: INIT/-/-/0x00
    (session) sid: 158 trans: 4EBB8954, creator: 4FA4CBFC, flag: (41) USR/- BSY/-/-/-/-/-
              DID: 0000-0010-0000000A, short-term DID: 0000-0000-00000000
              txn branch: 00000000
              oct: 0, prv: 0, sql: 00000000, psql: 4F707298, user: 0/SYS
    O/S info: user: superv06-PC\superv06, term: SUPERV06-PC, ospid: 7788:11636, machine: WORKGROUP\SUPERV06-PC
              program: sqlplus.exe
    application name: sqlplus.exe, hash value=0
    last wait for 'log file sequential read' blocking sess=0x00000000 seq=31 
    wait_time=159 seconds since wait started=0
                log#=0, block#=1, blocks=1
    Dumping Session Wait History
     for 'log file sequential read' count=1 wait_time=159
                log#=0, block#=1, blocks=1
     for 'log file sequential read' count=1 wait_time=502
                log#=0, block#=1, blocks=1
     for 'log file sequential read' count=1 wait_time=163
                log#=0, block#=1, blocks=1
     for 'db file sequential read' count=1 wait_time=18840
                file#=ffffffff, block#=1, blocks=1
     for 'db file sequential read' count=1 wait_time=254
                file#=ffffffff, block#=1, blocks=1
     for 'db file sequential read' count=1 wait_time=7654
                file#=ffffffff, block#=1, blocks=1
     for 'db file sequential read' count=1 wait_time=150
                file#=ffffffff, block#=1, blocks=1
     for 'db file sequential read' count=1 wait_time=102
                file#=ffffffff, block#=1, blocks=1
     for 'db file sequential read' count=1 wait_time=123
                file#=ffffffff, block#=1, blocks=1
     for 'db file sequential read' count=1 wait_time=14010
                file#=ffffffff, block#=1, blocks=1

通过这里我们发现创建控制文件的进程在读取redo log的时候出现了等待比较多而且时间比较长,而对于ORA-00600[3753]错误互联网上没有任何更多的信息.通过对于创建控制文件时候因为使用noresetlogs的分析:这种模式下需要读取redo log,所以导致等待较多,从而出现ORA-00600[3753]错误使得创建控制文件失败.因为本库是shutdown immediate关闭,所以我们完全可以通过resetlogs模式来创建控制文件,从而避免读取redo log.

4.创建resetlogs控制文件

SQL>@XFF_RESETLOGS_CTL.sql

Control file created.

5.然后不完全恢复使用resetlogs open数据库

这次的处理我也没有什么经验可以借鉴,MOS和互联网上没有该错误的任何信息,解决这个问题关键凭的是自己对于noresetlogs和resetlogs的理解.对于数据库原理的理解,对解决一些陌生问题帮助很大;在学习ORACLE过程中注重对原理的理解和消化

通过bbed解决ORA-00600[4000]案例

数据库启动出现ORA-00600[4000]错误

Fri Nov  4 06:50:38 2011
Errors in file /u01/oracle/admin/XFF/udump/xff_ora_7046.trc:
ORA-00600: internal error code, arguments: [4000], [5], [], [], [], [], [], []
Fri Nov  4 06:50:40 2011
Errors in file /u01/oracle/admin/XFF/udump/xff_ora_7046.trc:
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00600: internal error code, arguments: [4000], [5], [], [], [], [], [], []
Fri Nov  4 06:50:40 2011
Error 704 happened during db open, shutting down database
USER: terminating instance due to error 704
Instance terminated by USER, pid = 7046
ORA-1092 signalled during: ALTER DATABASE OPEN...

查看trace文件

*** 2011-11-04 06:50:38.942
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [4000], [5], [], [], [], [], [], []
Current SQL statement for this session:
select ctime, mtime, stime from obj$ where obj# = :1


Block header dump:  0x0040007a
 Object id on Block? Y
 seg/obj: 0x12  csc: 0x00.1020770d  itc: 1  flg: -  typ: 1 - DATA
     fsl: 0  fnx: 0x0 ver: 0x01
 
 Itl           Xid                  Uba         Flag  Lck        Scn/Fsc
0x01   0x0005.029.0000029a  0x00802381.01f9.03  --U-    1  fsc 0x0000.1020770e

查询trace相关数据对应值

SQL> select DBMS_UTILITY.data_block_address_file (TO_NUMBER ('0040007a','xxxxxxxx')) file_no,
  2  DBMS_UTILITY.data_block_address_block (TO_NUMBER ('0040007a','xxxxxxxx')) block_no
  3  from dual;

   FILE_NO   BLOCK_NO
---------- ----------
         1        122


SQL> select to_number('1020770e','xxxxxxxxxxx') itl_commit from dual;

ITL_COMMIT
----------
 270563086

SQL> select to_number('1020770d','xxxxxxxxxxxx') csc from dual;

       CSC
----------
 270563085

通过这里的分析,我们可以得出file 1 block 122的内容未提交,可能是导致错误ORA-00600[4000],尝试这手工提交该事务

BBED> set file 1 block 122
        FILE#           1
        BLOCK#          122

BBED> map
 File: /u01/oracle/oradata/XFF/system01.dbf (1)
 Block: 122                                   Dba:0x0040007a
------------------------------------------------------------
 KTB Data Block (Table/Cluster)

 struct kcbh, 20 bytes                      @0       

 struct ktbbh, 48 bytes                     @20      

 struct kdbh, 14 bytes                      @68      

 struct kdbt[1], 4 bytes                    @82      

 sb2 kdbr[108]                              @86      

 ub1 freespace[873]                         @302     

 ub1 rowdata[7013]                          @1175    

 ub4 tailchk                                @8188    


BBED> p ktbbh
struct ktbbh, 48 bytes                      @20      
   ub1 ktbbhtyp                             @20       0x01 (KDDBTDATA)
   union ktbbhsid, 4 bytes                  @24      
      ub4 ktbbhsg1                          @24       0x00000012
      ub4 ktbbhod1                          @24       0x00000012
   struct ktbbhcsc, 8 bytes                 @28      
      ub4 kscnbas                           @28       0x1020770d
      ub2 kscnwrp                           @32       0x0000
   sb2 ktbbhict                             @36       1
   ub1 ktbbhflg                             @38       0x02 (NONE)
   ub1 ktbbhfsl                             @39       0x00
   ub4 ktbbhfnx                             @40       0x00000000
   struct ktbbhitl[0], 24 bytes             @44      
      struct ktbitxid, 8 bytes              @44      
         ub2 kxidusn                        @44       0x0005
         ub2 kxidslt                        @46       0x0029
         ub4 kxidsqn                        @48       0x0000029a
      struct ktbituba, 8 bytes              @52      
         ub4 kubadba                        @52       0x00802381
         ub2 kubaseq                        @56       0x01f9
         ub1 kubarec                        @58       0x03
      ub2 ktbitflg                          @60       0x2001 (KTBFUPB)
      union _ktbitun, 2 bytes               @62      
         sb2 _ktbitfsc                      @62       0
         ub2 _ktbitwrp                      @62       0x0000
      ub4 ktbitbas                          @64       0x1020770e

BBED> set count 16
        COUNT           16

BBED> m /x 0180 offset 60 
 File: /u01/oracle/oradata/XFF/system01.dbf (1)
 Block: 122              Offsets:   60 to   75           Dba:0x0040007a
------------------------------------------------------------------------
 01800000 0e772010 00016c00 ffffea00 

 <32 bytes per line>

BBED> p ktbbh
struct ktbbh, 48 bytes                      @20      
   ub1 ktbbhtyp                             @20       0x01 (KDDBTDATA)
   union ktbbhsid, 4 bytes                  @24      
      ub4 ktbbhsg1                          @24       0x00000012
      ub4 ktbbhod1                          @24       0x00000012
   struct ktbbhcsc, 8 bytes                 @28      
      ub4 kscnbas                           @28       0x1020770d
      ub2 kscnwrp                           @32       0x0000
   sb2 ktbbhict                             @36       1
   ub1 ktbbhflg                             @38       0x02 (NONE)
   ub1 ktbbhfsl                             @39       0x00
   ub4 ktbbhfnx                             @40       0x00000000
   struct ktbbhitl[0], 24 bytes             @44      
      struct ktbitxid, 8 bytes              @44      
         ub2 kxidusn                        @44       0x0005
         ub2 kxidslt                        @46       0x0029
         ub4 kxidsqn                        @48       0x0000029a
      struct ktbituba, 8 bytes              @52      
         ub4 kubadba                        @52       0x00802381
         ub2 kubaseq                        @56       0x01f9
         ub1 kubarec                        @58       0x03
      ub2 ktbitflg                          @60       0x8001 (KTBFCOM)
      union _ktbitun, 2 bytes               @62      
         sb2 _ktbitfsc                      @62       0
         ub2 _ktbitwrp                      @62       0x0000
      ub4 ktbitbas                          @64       0x1020770e

BBED> sum apply
Check value for File 1, Block 122:
current = 0x6902, required = 0x6902

尝试重启库

SQL> startup
ORACLE instance started.

Total System Global Area  318767104 bytes
Fixed Size                  1219160 bytes
Variable Size              92276136 bytes
Database Buffers          218103808 bytes
Redo Buffers                7168000 bytes
Database mounted.
ORA-01092: ORACLE instance terminated. Disconnection forced

查看alert日志

Fri Nov  4 07:42:46 2011
Errors in file /u01/oracle/admin/XFF/udump/xff_ora_7702.trc:
ORA-00600: internal error code, arguments: [ktbdchk1: bad dscn], [], [], [], [], [], [], []
Fri Nov  4 07:42:46 2011
Errors in file /u01/oracle/admin/XFF/udump/xff_ora_7702.trc:
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00600: internal error code, arguments: [ktbdchk1: bad dscn], [], [], [], [], [], [], []
Fri Nov  4 07:42:46 2011
Error 704 happened during db open, shutting down database
USER: terminating instance due to error 704
Instance terminated by USER, pid = 7702
ORA-1092 signalled during: ALTER DATABASE OPEN...

分析trace文件

*** 2011-11-04 07:42:46.273
Recovery of Online Redo Log: Thread 1 Group 1 Seq 40 Reading mem 0
----- Recovery Hash Table Statistics ---------
Hash table buckets = 32768
Longest hash chain = 0
Average hash chain = 0/0 = 0.0
Max compares per lookup = 0
Avg compares per lookup = 0/0 = 0.0
----------------------------------------------
tkcrrsarc: (WARN) Failed to find ARCH for message (message:0x1)
tkcrrpa: (WARN) Failed initial attempt to send ARCH message (message:0x1)
[ktbdchk] -- readers_dsz -- bad dscn
scn: 0x0000.1020770escn: 0x0000.0021fa09
*** 2011-11-04 07:42:46.530
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [ktbdchk1: bad dscn], [], [], [], [], [], [], []
Current SQL statement for this session:
select ctime, mtime, stime from obj$ where obj# = :1

Block header dump:  0x0040007a
 Object id on Block? Y
 seg/obj: 0x12  csc: 0x00.1020770d  itc: 1  flg: -  typ: 1 - DATA
     fsl: 0  fnx: 0x0 ver: 0x01

 Itl           Xid                  Uba         Flag  Lck        Scn/Fsc
0x01   0x0005.029.0000029a  0x00802381.01f9.03  C---    0  scn 0x0000.1020770e

根据这个错误提示ktbdchk–>bad dscn,猜测ktbdchk是header scn中的ktbdchk,查找1020770e发现是itl comomit scn,通过bbed查看

BBED>  p kcvfhckp.kcvcpscn
struct kcvcpscn, 8 bytes                    @484     
   ub4 kscnbas                              @484      0x0021fa09
   ub2 kscnwrp                              @488      0x0000

通过这里可以知道ORA-00600[ktbdchk1: bad dscn]是因为itl comomit scn远大于datafile header scn,从而oracle认为datafile header scn是错误的,从而提示ktbdchk1: bad dscn.尝试bbed修改itl comomit scn

BBED> p ktbbh
struct ktbbh, 48 bytes                      @20      
   ub1 ktbbhtyp                             @20       0x01 (KDDBTDATA)
   union ktbbhsid, 4 bytes                  @24      
      ub4 ktbbhsg1                          @24       0x00000012
      ub4 ktbbhod1                          @24       0x00000012
   struct ktbbhcsc, 8 bytes                 @28      
      ub4 kscnbas                           @28       0x1020770d
      ub2 kscnwrp                           @32       0x0000
   sb2 ktbbhict                             @36       1
   ub1 ktbbhflg                             @38       0x02 (NONE)
   ub1 ktbbhfsl                             @39       0x00
   ub4 ktbbhfnx                             @40       0x00000000
   struct ktbbhitl[0], 24 bytes             @44      
      struct ktbitxid, 8 bytes              @44      
         ub2 kxidusn                        @44       0x0005
         ub2 kxidslt                        @46       0x0029
         ub4 kxidsqn                        @48       0x0000029a
      struct ktbituba, 8 bytes              @52      
         ub4 kubadba                        @52       0x00802381
         ub2 kubaseq                        @56       0x01f9
         ub1 kubarec                        @58       0x03
      ub2 ktbitflg                          @60       0x8001 (KTBFCOM)
      union _ktbitun, 2 bytes               @62      
         sb2 _ktbitfsc                      @62       0
         ub2 _ktbitwrp                      @62       0x0000
      ub4 ktbitbas                          @64       0x1020770e

BBED> m /x 09fa2100 offset 64
 File: /u01/oracle/oradata/XFF/system01.dbf (1)
 Block: 122              Offsets:   64 to   79           Dba:0x0040007a
------------------------------------------------------------------------
 09fa2100 00016c00 ffffea00 53046903 

 <32 bytes per line>

BBED> sum apply
Check value for File 1, Block 122:
current = 0xf404, required = 0xf404

启动数据库

SQL> conn / as sysdba
Connected to an idle instance.
SQL> startup
ORACLE instance started.

Total System Global Area  318767104 bytes
Fixed Size                  1219160 bytes
Variable Size              92276136 bytes
Database Buffers          218103808 bytes
Redo Buffers                7168000 bytes
Database mounted.
Database opened.

dul 10支持oracle 11g r2

以前一直以为dul对应的版本只能恢复最高的数据库版本一致,今天测试发现dul 10可以恢复11g最新版的数据库.
模拟环境

SQL> select * from v$version;

BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
PL/SQL Release 11.2.0.3.0 - Production
CORE    11.2.0.3.0      Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production

SQL> select to_char(sysdate,'yyyy-mm-dd hh:mi:ss') "WWW.XIFENFEI.COM" FROM DUAL;

WWW.XIFENFEI.COM
-------------------
2012-08-04 12:49:29

SQL> create table t_xifenfei 
  2  as
  3  select * from dba_objects;

Table created.

SQL> select count(*) from t_xifenfei;

  COUNT(*)
----------
     74491

SQL> alter system checkpoint;

System altered.

SQL> /

System altered.

dul 参数配置

[oracle@xifenfei dul]$ more init.dul 
osd_big_endian_flag=false
osd_dba_file_bits=10
osd_c_struct_alignment=32
osd_file_leader_size=0
osd_word_size = 32
dc_columns=2000000
dc_tables=10000
dc_objects=1000000
dc_users=400
dc_segments=100000
control_file = control11.dul
db_block_size=8192
export_mode=false
compatible=11
BUFFER=10000000
LDR_ENCLOSE_CHAR=|

[oracle@xifenfei dul]$ more control11.dul 
         0          1 /u01/oracle/oradata/ora11g/system01.dbf
         1          2 /u01/oracle/oradata/ora11g/sysaux01.dbf
         2          3 /u01/oracle/oradata/ora11g/undotbs01.dbf
         4          4 /u01/oracle/oradata/ora11g/users01.dbf

dul恢复11g数据库

[oracle@xifenfei dul]$ ./dul10

Data UnLoader: 10.2.0.5.13 - Internal Only - on Sat Aug  4 00:36:15 2012
with 64-bit io functions

Copyright (c) 1994 2012 Bernard van Duijnen All rights reserved.

 Strictly Oracle Internal Use Only


DUL: Warning: Recreating file "dul.log"
Found db_id = 4185048347
Found db_name = ORA11G
DUL>  bootstrap;
Probing file = 1, block = 520
. unloading table                BOOTSTRAP$
DUL: Warning: block number is non zero but marked deferred trying to process it anyhow
      60 rows unloaded
DUL: Warning: Dictionary cache DC_BOOTSTRAP is empty
Reading BOOTSTRAP.dat 60 entries loaded
Parsing Bootstrap$ contents
Generating dict.ddl for version 11
 OBJ$: segobjno 18, file 1 block 240
 TAB$: segobjno 2, tabno 1, file 1  block 144
 COL$: segobjno 2, tabno 5, file 1  block 144
 USER$: segobjno 10, tabno 1, file 1  block 208
Running generated file "@dict.ddl" to unload the dictionary tables
. unloading table                      OBJ$   74493 rows unloaded
. unloading table                      TAB$    2858 rows unloaded
. unloading table                      COL$   93503 rows unloaded
. unloading table                     USER$      88 rows unloaded
Reading USER.dat 88 entries loaded
Reading OBJ.dat 74493 entries loaded and sorted 74493 entries
Reading TAB.dat 2858 entries loaded
Reading COL.dat 93503 entries loaded and sorted 93503 entries
Reading BOOTSTRAP.dat 60 entries loaded

DUL: Warning: Recreating file "dict.ddl"
Generating dict.ddl for version 11
 OBJ$: segobjno 18, file 1 block 240
 TAB$: segobjno 2, tabno 1, file 1  block 144
 COL$: segobjno 2, tabno 5, file 1  block 144
 USER$: segobjno 10, tabno 1, file 1  block 208
 TABPART$: segobjno 568, file 1 block 3872
 INDPART$: segobjno 573, file 1 block 3912
 TABCOMPART$: segobjno 590, file 1 block 4056
 INDCOMPART$: segobjno 595, file 1 block 4096
 TABSUBPART$: segobjno 580, file 1 block 3976
 INDSUBPART$: segobjno 585, file 1 block 4016
 IND$: segobjno 2, tabno 3, file 1  block 144
 ICOL$: segobjno 2, tabno 4, file 1  block 144
 LOB$: segobjno 2, tabno 6, file 1  block 144
 COLTYPE$: segobjno 2, tabno 7, file 1  block 144
 TYPE$: segobjno 495, tabno 1, file 1  block 3344
 COLLECTION$: segobjno 495, tabno 2, file 1  block 3344
 ATTRIBUTE$: segobjno 495, tabno 3, file 1  block 3344
 LOBFRAG$: segobjno 601, file 1 block 4144
 LOBCOMPPART$: segobjno 604, file 1 block 4168
 UNDO$: segobjno 15, file 1 block 224
 TS$: segobjno 6, tabno 2, file 1  block 176
 PROPS$: segobjno 98, file 1 block 800
Running generated file "@dict.ddl" to unload the dictionary tables
. unloading table                      OBJ$
DUL: Warning: Recreating file "OBJ.ctl"
   74493 rows unloaded
. unloading table                      TAB$
DUL: Warning: Recreating file "TAB.ctl"
    2858 rows unloaded
. unloading table                      COL$
DUL: Warning: Recreating file "COL.ctl"
   93503 rows unloaded
. unloading table                     USER$
DUL: Warning: Recreating file "USER.ctl"
      88 rows unloaded
. unloading table                  TABPART$      90 rows unloaded
. unloading table                  INDPART$     106 rows unloaded
. unloading table               TABCOMPART$       1 row  unloaded
. unloading table               INDCOMPART$       0 rows unloaded
. unloading table               TABSUBPART$      32 rows unloaded
. unloading table               INDSUBPART$       0 rows unloaded
. unloading table                      IND$    5092 rows unloaded
. unloading table                     ICOL$    7518 rows unloaded
. unloading table                      LOB$    1251 rows unloaded
. unloading table                  COLTYPE$    2967 rows unloaded
. unloading table                     TYPE$    2872 rows unloaded
. unloading table               COLLECTION$     985 rows unloaded
. unloading table                ATTRIBUTE$   11127 rows unloaded
. unloading table                  LOBFRAG$       1 row  unloaded
. unloading table              LOBCOMPPART$       0 rows unloaded
. unloading table                     UNDO$      21 rows unloaded
. unloading table                       TS$       6 rows unloaded
. unloading table                    PROPS$      36 rows unloaded
Reading USER.dat 88 entries loaded
Reading OBJ.dat 74493 entries loaded and sorted 74493 entries
Reading TAB.dat 2858 entries loaded
Reading COL.dat 93503 entries loaded and sorted 93503 entries
Reading TABPART.dat 90 entries loaded and sorted 90 entries
Reading TABCOMPART.dat 1 entries loaded and sorted 1 entries
Reading TABSUBPART.dat 32 entries loaded and sorted 32 entries
Reading INDPART.dat 106 entries loaded and sorted 106 entries
Reading INDCOMPART.dat 0 entries loaded and sorted 0 entries
Reading INDSUBPART.dat 0 entries loaded and sorted 0 entries
Reading IND.dat 5092 entries loaded
Reading LOB.dat
DUL: Warning: Increased the size of DC_LOBS from 1024 to 8192 entries
 1251 entries loaded
Reading ICOL.dat 7518 entries loaded
Reading COLTYPE.dat 2967 entries loaded
Reading TYPE.dat 2872 entries loaded
Reading ATTRIBUTE.dat 11127 entries loaded
Reading COLLECTION.dat 985 entries loaded
Reading BOOTSTRAP.dat 60 entries loaded
Reading LOBFRAG.dat 1 entries loaded and sorted 1 entries
Reading LOBCOMPPART.dat 0 entries loaded and sorted 0 entries
Reading UNDO.dat 21 entries loaded
Reading TS.dat 6 entries loaded
Reading PROPS.dat 36 entries loaded
Database character set is ZHS16GBK
Database national character set is AL16UTF16
DUL> desc chf.t_xifenfei;
Table CHF.T_XIFENFEI
obj#= 75562, dataobj#= 75562, ts#= 4, file#= 4, block#=170
      tab#= 0, segcols= 15, clucols= 0
Column information:
icol# 01 segcol# 01        OWNER len   30 type  1 VARCHAR2 cs 852(ZHS16GBK)
icol# 02 segcol# 02  OBJECT_NAME len  128 type  1 VARCHAR2 cs 852(ZHS16GBK)
icol# 03 segcol# 03 SUBOBJECT_NAME len   30 type  1 VARCHAR2 cs 852(ZHS16GBK)
icol# 04 segcol# 04    OBJECT_ID len   22 type  2 NUMBER(0,-127)
icol# 05 segcol# 05 DATA_OBJECT_ID len   22 type  2 NUMBER(0,-127)
icol# 06 segcol# 06  OBJECT_TYPE len   19 type  1 VARCHAR2 cs 852(ZHS16GBK)
icol# 07 segcol# 07      CREATED len    7 type 12 DATE
icol# 08 segcol# 08 LAST_DDL_TIME len    7 type 12 DATE
icol# 09 segcol# 09    TIMESTAMP len   19 type  1 VARCHAR2 cs 852(ZHS16GBK)
icol# 10 segcol# 10       STATUS len    7 type  1 VARCHAR2 cs 852(ZHS16GBK)
icol# 11 segcol# 11    TEMPORARY len    1 type  1 VARCHAR2 cs 852(ZHS16GBK)
icol# 12 segcol# 12    GENERATED len    1 type  1 VARCHAR2 cs 852(ZHS16GBK)
icol# 13 segcol# 13    SECONDARY len    1 type  1 VARCHAR2 cs 852(ZHS16GBK)
icol# 14 segcol# 14    NAMESPACE len   22 type  2 NUMBER(0,-127)
icol# 15 segcol# 15 EDITION_NAME len   30 type  1 VARCHAR2 cs 852(ZHS16GBK)
DUL> unload table chf.t_xifenfei;
. unloading table                T_XIFENFEI   74491 rows unloaded

通过一些列的dul 10测试,发现dul 10功能确实较9强大了很多.支持asm,支持11g,支持字符串换行+lob类型

通过bbed修改回滚段状态解决ORA-00704故障

undo文件丢失

SQL> startup 
ORACLE instance started.

Total System Global Area  313860096 bytes
Fixed Size                  1344652 bytes
Variable Size             218106740 bytes
Database Buffers           88080384 bytes
Redo Buffers                6328320 bytes
Database mounted.
ORA-01157: cannot identify/lock data file 3 - see DBWR trace file
ORA-01110: data file 3: '/u01/oracle/oradata/ora11g/undotbs01.dbf'

[root@xifenfei ~]# ls -l /u01/oracle/oradata/ora11g/undotbs01.dbf
ls: /u01/oracle/oradata/ora11g/undotbs01.dbf: No such file or directory

尝试offline 数据文件


SQL> alter database datafile 3 offline;

Database altered.

SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 2
ORA-00376: file 3 cannot be read at this time
ORA-01110: data file 3: '/u01/oracle/oradata/ora11g/undotbs01.dbf'
Process ID: 16365
Session ID: 125 Serial number: 5

通过这里的错误提示可以看到因为datafile 3丢失并且offline,而在数据库启动的时候需要去使用该数据文件中的回滚段去回滚事务,但是因为该数据文件被offline,使得回滚不能进行从而出现该错误.这里出现ORA-00704和ORA-00604的错误,根据感觉不能轻易的使用屏蔽回滚段的方法实现,但是还是做一尝试.使用其他方法找到回滚段.

屏蔽回滚段后重启库

SQL> startup mount pfile='/tmp/pfile'   force
ORACLE instance started.

Total System Global Area  313860096 bytes
Fixed Size                  1344652 bytes
Variable Size             218106740 bytes
Database Buffers           88080384 bytes
Redo Buffers                6328320 bytes
Database mounted.

SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 2
ORA-00376: file 3 cannot be read at this time
ORA-01110: data file 3: '/u01/oracle/oradata/ora11g/undotbs01.dbf'
Process ID: 16696
Session ID: 125 Serial number: 5

增加了合适的回滚段屏蔽,但是数据库还不能正常启动,而且依然报ORA-00704,决定对数据库启动过程做一个10046跟踪,来判断在哪一步出了问题

对数据库open过程做10046

SQL> conn  / as sysdba
Connected to an idle instance.
SQL> startup pfile='/tmp/pfile' mount;
ORACLE instance started.

Total System Global Area  313860096 bytes
Fixed Size                  1344652 bytes
Variable Size             218106740 bytes
Database Buffers           88080384 bytes
Redo Buffers                6328320 bytes
Database mounted.

SQL> oradebug setmypid 
Statement processed.
SQL> oradebug EVENT 10046 TRACE NAME CONTEXT FOREVER, LEVEL 12
Statement processed.
SQL> oradebug TRACEFILE_NAME
/u01/oracle/diag/rdbms/ora11g/ora11g/trace/ora11g_ora_16869.trc
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 2
ORA-00376: file 3 cannot be read at this time
ORA-01110: data file 3: '/u01/oracle/oradata/ora11g/undotbs01.dbf'
Process ID: 16869
Session ID: 125 Serial number: 5

--trace中发现
PARSE ERROR #3063083528:len=60 dep=1 uid=0 oct=3 lid=0 tim=1342472283605146 err=604
SELECT NULL FROM PROPS$ WHERE NAME='BOOTSTRAP_UPGRADE_ERROR'
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 2
ORA-00376: file 3 cannot be read at this time
ORA-01110: data file 3: '/u01/oracle/oradata/ora11g/undotbs01.dbf'
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 2
ORA-00376: file 3 cannot be read at this time
ORA-01110: data file 3: '/u01/oracle/oradata/ora11g/undotbs01.dbf'

通过这里可以看出来很可能是在SELECT PROPS$表的时候,需要使用到回滚段,这里有两种可能需要使用回滚段(1.有数据未提交[提交事务],2.数据块scn过大[提交事务/推进scn]).对于这个问题,我尝试着修改回滚段状态来解决这个问题

修改回滚段状态

[oracle@xifenfei ~]$ bbed listfile=listfile password=blockedit  mode=edit

BBED: Release 2.0.0.0.0 - Limited Production on Tue Jul 17 09:10:01 2012

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

************* !!! For Oracle Internal Use only !!! ***************

BBED> set file 1 block 225
        FILE#           1
        BLOCK#          225

BBED> map
 File: /u01/oracle/oradata/ora11g/system01.dbf (1)
 Block: 225                                   Dba:0x004000e1
------------------------------------------------------------
 KTB Data Block (Table/Cluster)

 struct kcbh, 20 bytes                      @0       

 struct ktbbh, 48 bytes                     @20      

 struct kdbh, 14 bytes                      @68      

 struct kdbt[1], 4 bytes                    @82      

 sb2 kdbr[21]                               @86      

 ub1 freespace[5357]                        @128     

 ub1 rowdata[2703]                          @5485    

 ub4 tailchk                                @8188    

BBED> p *kdbr[1]
rowdata[1393]
-------------
ub1 rowdata[1393]                           @6878     0x2c

BBED> x /rncnnnnn
rowdata[1393]                               @6878    
-------------
flag@6878: 0x2c (KDRHFL, KDRHFF, KDRHFH)
lock@6879: 0x00
cols@6880:   17

col    0[2] @6881: 1 
col   1[20] @6884: _SYSSMU1_3138885392$
col    2[2] @6905: 1 
col    3[2] @6908: 3 
col    4[3] @6911: 128 
col    5[4] @6915: 822624 
col    6[1] @6920: 0 
col    7[3] @6922: 498 
col    8[2] @6926: 94 
col    9[1] @6929: 0 
col   10[2] @6931: 3 
col   11[2] @6934: 2 
col   12[0] @6937: *NULL*
col   13[0] @6938: *NULL*
col   14[0] @6939: *NULL*
col   15[0] @6940: *NULL*
col   16[2] @6941: 2 


BBED> m /x 02 offset 6933
 File: /u01/oracle/oradata/ora11g/system01.dbf (1)
 Block: 225              Offsets: 6933 to 7444           Dba:0x004000e1
------------------------------------------------------------------------
 0202c103 ffffffff 02c1032c 001102c1 03145f53 5953534d 55325f34 32323832 
 33383232 322402c1 0202c104 03c2022d 04c3531b 16018003 c2075303 c2031401 
 8002c102 02c103ff ffffff02 c1032c00 1102c104 145f5359 53534d55 335f3232 
 31303734 32363432 2402c102 02c10403 c2023d04 c3531b17 018003c2 074903c2 
 02290180 02c10202 c103ffff ffff02c1 032c0011 02c10514 5f535953 534d5534 
 5f313435 35333138 30303624 02c10202 c10403c2 024d04c3 4f4f5101 8003c205 
 4502c164 018002c1 0402c103 ffffffff 02c1032c 001102c1 06145f53 5953534d 
 55355f33 37383736 32323331 362402c1 0202c104 03c2025d 04c3531b 1c018003 
 c2071603 c2021701 8002c102 02c103ff ffffff02 c1032c00 1102c107 145f5359 
 53534d55 365f3234 36303234 38303639 2402c102 02c10403 c2030904 c3531b1d 
 018003c2 075a03c2 02130180 02c10202 c103ffff ffff02c1 032c0011 02c10814 
 5f535953 534d5537 5f313932 34383833 30333724 02c10202 c10403c2 031904c3 
 531b2201 8003c207 5a03c202 1d018002 c10202c1 03ffffff ff02c103 2c001102 
 c109135f 53595353 4d55385f 32373630 33383233 372402c1 0202c104 03c20329 
 04c34f2e 34018003 c2071703 c2024a01 8002c102 02c103ff ffffff02 c1032c00 
 1102c10a 145f5359 53534d55 395f3335 39333435 30363135 2402c102 02c10403 

 <32 bytes per line>

…………类似方法修改其他值

BBED> sum apply
Check value for File 1, Block 225:
current = 0x4d51, required = 0x4d51

启动数据库并解决异常undo

SQL> conn / as sysdba
Connected to an idle instance.
SQL> startup pfile='/tmp/pfile'
ORACLE instance started.

Total System Global Area  313860096 bytes
Fixed Size                  1344652 bytes
Variable Size             218106740 bytes
Database Buffers           88080384 bytes
Redo Buffers                6328320 bytes
Database mounted.
Database opened.

SQL> drop tablespace undotbs1;
drop tablespace undotbs1
*
ERROR at line 1:
ORA-01561: failed to remove all objects in the tablespace specified


SQL> drop tablespace undotbs1 including contents;
drop tablespace undotbs1
*
ERROR at line 1:
ORA-01561: failed to remove all objects in the tablespace specified

SQL> select type# from seg$ where file#=3; 

     TYPE#
----------
        10
        10
        10
        10
        10
        10
        10
        10
        10
        10

10 rows selected.

SQL> update seg$ set type#=3 where file#=3;

10 rows updated.

SQL> commit;

Commit complete.

SQL>  drop tablespace undotbs1 including contents;

Tablespace dropped.

SQL> create undo tablespace undotbs1 datafile '/u01/oracle/oradata/ora11g/undotbs01.dbf' size 10m;

Tablespace created.

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