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ORA-00600: internal error code, arguments:[2608] 一例

ORA-00600: internal error code, arguments:[2608] 一例

一套10.2.0.4的单节点数据库在恢复数据文件时出现了ORA-00600: internal error code, arguments: [2608], [1], [0], [690423], [0], [690425], [], []内部错误,其日志如下:

 

ORA-00600: internal error code, arguments:[2608] 

 

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Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORACLE_HOME = /s01/db_1
System name:    Linux
Node name:      rh2.oracle.com
Release:        2.6.18-194.el5
Version:        #1 SMP Mon Mar 29 22:10:29 EDT 2010
Machine:        x86_64
Instance name: G10R2
Redo thread mounted by this instance: 1
Oracle process number: 15
Unix process pid: 21360, image: oracle@rh2.oracle.com (TNS V1-V3)

*** 2011-04-27 21:20:40.979
*** ACTION NAME:() 2011-04-27 21:20:40.979
*** MODULE NAME:(sqlplus@rh2.oracle.com (TNS V1-V3)) 2011-04-27 21:20:40.979
*** SERVICE NAME:(SYS$USERS) 2011-04-27 21:20:40.979
*** SESSION ID:(159.3) 2011-04-27 21:20:40.979
kwqmnich: current time:: 13: 20: 40
kwqmnich: instance no 0 check_only flag 1
kwqmnich: initialized job cache structure
Recovery target incarnation = 2, activation ID = 0
Influx buffer limit = 52443 (50% x 104887)
Successfully allocated 2 recovery slaves
Using 550 overflow buffers per recovery slave
Start recovery at thread 1 ckpt scn 690423 logseq 1 block 3183
*** 2011-04-27 21:20:46.165
Media Recovery add redo thread 1
*** 2011-04-27 21:20:46.172
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [2608], [1], [0], [690423], [0], [690425], [], []
Current SQL statement for this session:
ALTER DATABASE RECOVER  datafile 9
----- Call Stack Trace -----
calling              call     entry                argument values in hex
location             type     point                (? means dubious value)
-------------------- -------- -------------------- ----------------------------
ksedst()+31          call     ksedst1()            000000000 ? 000000001 ?
ksedmp()+610         call     ksedst()             000000000 ? 000000001 ?
                                                   7FFF6F1795E0 ? 7FFF6F179640 ?
                                                   7FFF6F179580 ? 000000000 ?
ksfdmp()+21          call     ksedmp()             000000003 ? 000000001 ?
                                                   7FFF6F1795E0 ? 7FFF6F179640 ?
                                                   7FFF6F179580 ? 000000000 ?
kgeriv()+176         call     ksfdmp()             000000003 ? 000000001 ?
                                                   7FFF6F1795E0 ? 7FFF6F179640 ?
                                                   7FFF6F179580 ? 000000000 ?
kgesiv()+119         call     kgeriv()             0068966E0 ? 00A81E650 ?
                                                   000000000 ? 7FFF6F178F08 ?
                                                   7FFF6F179580 ? 000000000 ?
ksesic5()+215        call     kgesiv()             0068966E0 ? 00A81E650 ?
                                                   000000A30 ? 000000005 ?
                                                   7FFF6F17A360 ? 000000000 ?
kcrfro()+6796        call     ksesic5()            000000A30 ? 000000000 ?
                                                   000000001 ? 000000000 ?
                                                   000000000 ? 000000000 ?
kcramr()+7872        call     kcrfro()             2B9DB2D29400 ? 000000000 ?
                                                   000000001 ? 000000000 ?
                                                   000000000 ? 000000000 ?
krddmr()+1290        call     kcramr()             2B9DB2CF70E0 ? 00A7F8280 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000000 ?
adbdrv()+10248       call     krddmr()             00A7F8280 ? 000000000 ?
                                                   7FFF6F182FC4 ? 000000000 ?
                                                   2B9DB2CF70E0 ?
                                                   A7F828000000001 ?
opiexe()+13505       call     adbdrv()             00A7F8280 ? 000000000 ?
                                                   0A2806BD8 ? 000000000 ?
                                                   2B9DB2CF70E0 ?
                                                   A7F828000000001 ?
opiosq0()+3316       call     opiexe()             000000004 ? 000000000 ?
                                                   7FFF6F184238 ? 000000012 ?
                                                   2B9DB2CF70E0 ?
                                                   A7F828000000001 ?
kpooprx()+315        call     opiosq0()            000000003 ? 00000000E ?
                                                   7FFF6F1843A8 ? 0000000A4 ?
                                                   2B9DB2CF70E0 ?
                                                   A7F828000000001 ?
kpoal8()+799         call     kpooprx()            7FFF6F187554 ? 7FFF6F185530 ?
                                                   000000024 ? 000000001 ?
                                                   000000000 ? A7F828000000001 ?
opiodr()+984         call     kpoal8()             00000005E ? 000000017 ?
                                                   7FFF6F187550 ? 000000001 ?
                                                   000000001 ? A7F828000000001 ?
ttcpip()+1012        call     opiodr()             00000005E ? 000000017 ?
                                                   7FFF6F187550 ? 000000000 ?
                                                   0059C0990 ? A7F828000000001 ?
opitsk()+1322        call     ttcpip()             00689E3B0 ? 000000001 ?
                                                   7FFF6F187550 ? 000000000 ?
                                                   7FFF6F187048 ? 7FFF6F1876B8 ?
opiino()+1026        call     opitsk()             000000003 ? 000000000 ?
                                                   7FFF6F187550 ? 000000001 ?
=========================================================

该ORA-00600[2608]可能由数据文件头中记录的checkpoint scn过小造成,Oracle会将该checkpoint scn与块中的resetlogs scn以及控制文件中记录的日志文件的Low scn相比较,若文件头中的checkpoint scn远小于对比值,那么就会出现ORA-00600[2608]内部错误。

下面我们通过修改数据文件头中kcvfhckp结构中记录的checkpoint scn到一个较小值,来模拟出发ORA-00600[2608]内部错误:

SQL> oradebug setmypid;
Statement processed.

SQL> oradebug dump file_hdrs 8;
Statement processed.

SQL> oradebug tracefile_name;

DATA FILE #11:
  (name #17) /u01/data02.dbf
creation size=6400 block size=8192 status=0x1c head=17 tail=17 dup=1
 tablespace 12, index=12 krfil=11 prev_file=0
 unrecoverable scn: 0x0000.00000000 01/01/1988 00:00:00
 Checkpoint cnt:4 scn: 0x0000.000b01c2 04/27/2011 22:52:31
 Stop scn: 0x0000.000b01c5 04/27/2011 22:52:39
 Creation Checkpointed at scn:  0x0000.000b01a8 04/27/2011 22:52:24
 thread:1 rba:(0xb.e.10)
....................................................
 Hot Backup end marker scn: 0x0000.00000000
 aux_file is NOT DEFINED
 V10 STYLE FILE HEADER:
        Compatibility Vsn = 169870080=0xa200300
        Db ID=2894437650=0xac859d12, Db Name='G10R2'
        Activation ID=0=0x0
        Control Seq=740=0x2e4, File size=6400=0x1900
        File Number=11, Blksiz=8192, File Type=3 DATA
Tablespace #12 - DATA02  rel_fn:11
Creation   at   scn: 0x0000.000b01a8 04/27/2011 22:52:24
Backup taken at scn: 0x0000.00000000 01/01/1988 00:00:00 thread:0
 reset logs count:0x2cade887 scn: 0x0000.000a88f9 reset logs terminal rcv data:0x0 scn: 0x0000.00000000
 prev reset logs count:0x2cadd4e7 scn: 0x0000.000a7f86 prev reset logs terminal rcv data:0x0 scn: 0x0000.00000000
 recovered at 01/01/1988 00:00:00
 status:0x4 root dba:0x00000000 chkpt cnt: 4 ctl cnt:3
begin-hot-backup file size: 0
Checkpointed at scn:  0x0000.000b01c2 04/27/2011 22:52:31

/* 可以看到以上11号数据文件头的Checkpoint scn为0x0000.000b01c2 ,
    而resetlogs scn为0x0000.000a88f9                                        */

/* 我们将Checkpoint scn修改为0x0000.000a88f7                      */

[oracle@rh2 u01]$ bbed filename=data02.dbf blocksize=8192 password=blockedit mode=edit

BBED: Release 2.0.0.0.0 - Limited Production on Wed Apr 27 22:55:30 2011

Copyright (c) 1982, 2007, Oracle.  All rights reserved.

************* !!! For Oracle Internal Use only !!! ***************
BBED> set blocksize 8192
        BLOCKSIZE       8192

BBED> set block 2
        BLOCK#          2

BBED> map
 File: data02.dbf (0)
 Block: 2                                     Dba:0x00000000
------------------------------------------------------------
 Data File Header

 struct kcvfh, 676 bytes                    @0       

 ub4 tailchk                                @8188    

BBED> p kcvfh
struct kcvfh, 676 bytes                     @0       
   struct kcvfhbfh, 20 bytes                @0       
      ub1 type_kcbh                         @0        0x0b
      ub1 frmt_kcbh                         @1        0xa2
      ub1 spare1_kcbh                       @2        0x00
      ub1 spare2_kcbh                       @3        0x00
      ub4 rdba_kcbh                         @4        0x02c00001
      ub4 bas_kcbh                          @8        0x00000000
      ub2 wrp_kcbh                          @12       0x0000
      ub1 seq_kcbh                          @14       0x01
      ub1 flg_kcbh                          @15       0x04 (KCBHFCKV)
      ub2 chkval_kcbh                       @16       0xb4a1
      ub2 spare3_kcbh                       @18       0x0000
   struct kcvfhhdr, 76 bytes                @20      
      ub4 kccfhswv                          @20       0x00000000
      ub4 kccfhcvn                          @24       0x0a200300
      ub4 kccfhdbi                          @28       0xac859d12
      text kccfhdbn[0]                      @32      G
      text kccfhdbn[1]                      @33      1
      text kccfhdbn[2]                      @34      0
      text kccfhdbn[3]                      @35      R
      text kccfhdbn[4]                      @36      2
      text kccfhdbn[5]                      @37       
      text kccfhdbn[6]                      @38       
      text kccfhdbn[7]                      @39       
      ub4 kccfhcsq                          @40       0x000002e4
      ub4 kccfhfsz                          @44       0x00001900
      s_blkz kccfhbsz                       @48       0x00
      ub2 kccfhfno                          @52       0x000b
      ub2 kccfhtyp                          @54       0x0003
      ub4 kccfhacid                         @56       0x00000000
      ub4 kccfhcks                          @60       0x00000000
      text kccfhtag[0]                      @64       
      text kccfhtag[1]                      @65       
      text kccfhtag[2]                      @66       
      text kccfhtag[3]                      @67       
      text kccfhtag[4]                      @68       
      text kccfhtag[5]                      @69       
      text kccfhtag[6]                      @70       
      text kccfhtag[7]                      @71       
      text kccfhtag[8]                      @72       
      text kccfhtag[9]                      @73       
      text kccfhtag[10]                     @74       
      text kccfhtag[11]                     @75       
      text kccfhtag[12]                     @76       
      text kccfhtag[13]                     @77       
      text kccfhtag[14]                     @78       
      text kccfhtag[15]                     @79       
      text kccfhtag[16]                     @80       
      text kccfhtag[17]                     @81       
      text kccfhtag[18]                     @82       
      text kccfhtag[19]                     @83       
      text kccfhtag[20]                     @84       
      text kccfhtag[21]                     @85       
      text kccfhtag[22]                     @86       
      text kccfhtag[23]                     @87       
      text kccfhtag[24]                     @88       
      text kccfhtag[25]                     @89       
      text kccfhtag[26]                     @90       
      text kccfhtag[27]                     @91       
      text kccfhtag[28]                     @92       
      text kccfhtag[29]                     @93       
      text kccfhtag[30]                     @94       
      text kccfhtag[31]                     @95       
   ub4 kcvfhrdb                             @96       0x00000000
   struct kcvfhcrs, 8 bytes                 @100     
      ub4 kscnbas                           @100      0x000b01a8
      ub2 kscnwrp                           @104      0x0000
   ub4 kcvfhcrt                             @108      0x2cae0628
   ub4 kcvfhrlc                             @112      0x2cade887
   struct kcvfhrls, 8 bytes                 @116                             resetlogs scn
      ub4 kscnbas                           @116      0x000a88f9
      ub2 kscnwrp                           @120      0x0000
   ub4 kcvfhbti                             @124      0x00000000
   struct kcvfhbsc, 8 bytes                 @128     
      ub4 kscnbas                           @128      0x00000000
      ub2 kscnwrp                           @132      0x0000
   ub2 kcvfhbth                             @136      0x0000
   ub2 kcvfhsta                             @138      0x0004 (KCVFHOFZ)
   struct kcvfhckp, 36 bytes                @484     
      struct kcvcpscn, 8 bytes              @484                               checkpoint scn 
         ub4 kscnbas                        @484      0x000b01c2
         ub2 kscnwrp                        @488      0x0000
      ub4 kcvcptim                          @492      0x2cae062f
      ub2 kcvcpthr                          @496      0x0001
      union u, 12 bytes                     @500     
         struct kcvcprba, 12 bytes          @500     
            ub4 kcrbaseq                    @500      0x0000000b
            ub4 kcrbabno                    @504      0x0000001b
            ub2 kcrbabof                    @508      0x0010
      ub1 kcvcpetb[0]                       @512      0x02
      ub1 kcvcpetb[1]                       @513      0x00
      ub1 kcvcpetb[2]                       @514      0x00
      ub1 kcvcpetb[3]                       @515      0x00
      ub1 kcvcpetb[4]                       @516      0x00
      ub1 kcvcpetb[5]                       @517      0x00
      ub1 kcvcpetb[6]                       @518      0x00
      ub1 kcvcpetb[7]                       @519      0x00
   ub4 kcvfhcpc                             @140      0x00000004
   ub4 kcvfhrts                             @144      0x00000000
   ub4 kcvfhccc                             @148      0x00000003
   struct kcvfhbcp, 36 bytes                @152     
      struct kcvcpscn, 8 bytes              @152     
         ub4 kscnbas                        @152      0x00000000
         ub2 kscnwrp                        @156      0x0000
      ub4 kcvcptim                          @160      0x00000000
      ub2 kcvcpthr                          @164      0x0000
      union u, 12 bytes                     @168     
         struct kcvcprba, 12 bytes          @168     
            ub4 kcrbaseq                    @168      0x00000000
            ub4 kcrbabno                    @172      0x00000000
            ub2 kcrbabof                    @176      0x0000
      ub1 kcvcpetb[0]                       @180      0x00
      ub1 kcvcpetb[1]                       @181      0x00
      ub1 kcvcpetb[2]                       @182      0x00
      ub1 kcvcpetb[3]                       @183      0x00
      ub1 kcvcpetb[4]                       @184      0x00
      ub1 kcvcpetb[5]                       @185      0x00
      ub1 kcvcpetb[6]                       @186      0x00
      ub1 kcvcpetb[7]                       @187      0x00
   ub4 kcvfhbhz                             @312      0x00000000
   struct kcvfhxcd, 16 bytes                @316     
      ub4 space_kcvmxcd[0]                  @316      0x00000000
      ub4 space_kcvmxcd[1]                  @320      0x00000000
      ub4 space_kcvmxcd[2]                  @324      0x00000000
      ub4 space_kcvmxcd[3]                  @328      0x00000000
   word kcvfhtsn                            @332      12
   ub2 kcvfhtln                             @336      0x0006
   text kcvfhtnm[0]                         @338     D
   text kcvfhtnm[1]                         @339     A
   text kcvfhtnm[2]                         @340     T
   text kcvfhtnm[3]                         @341     A
   text kcvfhtnm[4]                         @342     0
   text kcvfhtnm[5]                         @343     2
   text kcvfhtnm[6]                         @344      
   text kcvfhtnm[7]                         @345      
   text kcvfhtnm[8]                         @346      
   text kcvfhtnm[9]                         @347      
   text kcvfhtnm[10]                        @348      
   text kcvfhtnm[11]                        @349      
   text kcvfhtnm[12]                        @350      
   text kcvfhtnm[13]                        @351      
   text kcvfhtnm[14]                        @352      
   text kcvfhtnm[15]                        @353      
   text kcvfhtnm[16]                        @354      
   text kcvfhtnm[17]                        @355      
   text kcvfhtnm[18]                        @356      
   text kcvfhtnm[19]                        @357      
   text kcvfhtnm[20]                        @358      
   text kcvfhtnm[21]                        @359      
   text kcvfhtnm[22]                        @360      
   text kcvfhtnm[23]                        @361      
   text kcvfhtnm[24]                        @362      
   text kcvfhtnm[25]                        @363      
   text kcvfhtnm[26]                        @364      
   text kcvfhtnm[27]                        @365      
   text kcvfhtnm[28]                        @366      
   text kcvfhtnm[29]                        @367      
   ub4 kcvfhrfn                             @368      0x0000000b
   struct kcvfhrfs, 8 bytes                 @372     
      ub4 kscnbas                           @372      0x00000000
      ub2 kscnwrp                           @376      0x0000
   ub4 kcvfhrft                             @380      0x00000000
   struct kcvfhafs, 8 bytes                 @384     
      ub4 kscnbas                           @384      0x00000000
      ub2 kscnwrp                           @388      0x0000
   ub4 kcvfhbbc                             @392      0x00000000
   ub4 kcvfhncb                             @396      0x00000000
   ub4 kcvfhmcb                             @400      0x00000000
   ub4 kcvfhlcb                             @404      0x00000000
   ub4 kcvfhbcs                             @408      0x00000000
   ub2 kcvfhofb                             @412      0x0000
   ub2 kcvfhnfb                             @414      0x0000
   ub4 kcvfhprc                             @416      0x2cadd4e7
   struct kcvfhprs, 8 bytes                 @420     
      ub4 kscnbas                           @420      0x000a7f86
      ub2 kscnwrp                           @424      0x0000
   struct kcvfhprfs, 8 bytes                @428     
      ub4 kscnbas                           @428      0x00000000
      ub2 kscnwrp                           @432      0x0000
   ub4 kcvfhtrt                             @444      0x00000000

BBED> set offset 484
        OFFSET          484

BBED> p                 
pad
---
ub1 pad                                     @484      0xc2

BBED> modify /x f788
Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y
 File: data02.dbf (0)
 Block: 2                Offsets:  484 to  995           Dba:0x00000000
------------------------------------------------------------------------
 f7880b00 00000000 2f06ae2c 01000000 0b000000 1b000000 1000e880 02000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 0d000d00 0d000100 00000000 00000000 00000000 0200c002 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 

 <32 bytes per line>

BBED> set offset 486
        OFFSET          486

BBED> p
pad
---
ub1 pad                                     @486      0x00

BBED> modify /x 0x0a00
 File: data02.dbf (0)
 Block: 2                Offsets:  486 to  997           Dba:0x00000000
------------------------------------------------------------------------
 0a000000 00002f06 ae2c0100 00000b00 00001b00 00001000 e8800200 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000d00 
 0d000d00 01000000 00000000 00000000 00000200 c0020000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 

 <32 bytes per line>

BBED> p kcvfhckp
struct kcvfhckp, 36 bytes                   @484     
   struct kcvcpscn, 8 bytes                 @484     
      ub4 kscnbas                           @484      0x000a88f7
      ub2 kscnwrp                           @488      0x0000
   ub4 kcvcptim                             @492      0x2cae062f
   ub2 kcvcpthr                             @496      0x0001
   union u, 12 bytes                        @500     
      struct kcvcprba, 12 bytes             @500     
         ub4 kcrbaseq                       @500      0x0000000b
         ub4 kcrbabno                       @504      0x0000001b
         ub2 kcrbabof                       @508      0x0010
   ub1 kcvcpetb[0]                          @512      0x02
   ub1 kcvcpetb[1]                          @513      0x00
   ub1 kcvcpetb[2]                          @514      0x00
   ub1 kcvcpetb[3]                          @515      0x00
   ub1 kcvcpetb[4]                          @516      0x00
   ub1 kcvcpetb[5]                          @517      0x00
   ub1 kcvcpetb[6]                          @518      0x00
   ub1 kcvcpetb[7]                          @519      0x00

BBED> sum
Check value for File 0, Block 2:
current = 0xb4a1, required = 0x3d95

BBED> sum apply
Check value for File 0, Block 2:
current = 0x3d95, required = 0x3d95

/* 如我们所期待地出现了ORA-00600[2608]内部错误 */

SQL> recover datafile 11;
ORA-00283: recovery session canceled due to errors
ORA-00600: internal error code, arguments: [2608], [2], [0], [690423], [0],
[721306], [], []

这里的690423也就是16进制的0x000a88f7,是我们之前所修改的checkpoint scn,
而721306等于0xb019a,为当前日志文件的Low scn:
LOG FILE #1:
  (name #5) /flashcard/oradata/G10R2/onlinelog/o1_mf_1_6v34jnkn_.log
  (name #6) /s01/flash_recovery_area/G10R2/onlinelog/o1_mf_1_6v34jnst_.log
 Thread 1 redo log links: forward: 2 backward: 0
 siz: 0x19000 seq: 0x0000000a hws: 0x2 bsz: 512 nab: 0x2 flg: 0x1 dup: 2
 Archive links: fwrd: 0 back: 0 Prev scn: 0x0000.000b0193
 Low scn: 0x0000.000b0196 04/27/2011 22:52:05
 Next scn: 0x0000.000b019a 04/27/2011 22:52:10
LOG FILE #2:
  (name #3) /flashcard/oradata/G10R2/onlinelog/o1_mf_2_6v34jokt_.log
  (name #4) /s01/flash_recovery_area/G10R2/onlinelog/o1_mf_2_6v34jotq_.log
 Thread 1 redo log links: forward: 3 backward: 1
 siz: 0x19000 seq: 0x0000000b hws: 0x1 bsz: 512 nab: 0xffffffff flg: 0x8 dup: 2
 Archive links: fwrd: 0 back: 0 Prev scn: 0x0000.000b0196
 Low scn: 0x0000.000b019a 04/27/2011 22:52:10
 Next scn: 0xffff.ffffffff 01/01/1988 00:00:00
LOG FILE #3:
  (name #1) /flashcard/oradata/G10R2/onlinelog/o1_mf_3_6v34jpmp_.log
  (name #2) /s01/flash_recovery_area/G10R2/onlinelog/o1_mf_3_6v34jpyn_.log
 Thread 1 redo log links: forward: 0 backward: 2
 siz: 0x19000 seq: 0x00000009 hws: 0x2 bsz: 512 nab: 0x2 flg: 0x1 dup: 2
 Archive links: fwrd: 0 back: 0 Prev scn: 0x0000.000b0190
 Low scn: 0x0000.000b0193 04/27/2011 22:52:04
 Next scn: 0x0000.000b0196 04/27/2011 22:52:05

记以录之!