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  • Oracle内部错误:ORA00600[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:
    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!
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  • 原文地址:https://www.cnblogs.com/macleanoracle/p/2967745.html
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