重建控制文件.docx

范例一Oracle提供两种方式备份控制文件:1.生成可以重建控制文件的脚本2.备份二进制的控制文件如何获得可以重建控制文件的脚本.在mount状态下获得trc文件sqlview plaincopysqlalterdatabasebackupcontrolfiletotraceas/home/oracle/crontol_trace.trc;sqlview plaincopy1. oraclehbgforacle$more/home/oracle/crontol_trace.trc2. -ThefollowingarecurrentSystem-scopeREDOLogArchivalrelated3. -parametersandcanbeincludedinthedatabaseinitializationfile.4. -5. -LOG_ARCHIVE_DEST=6. -LOG_ARCHIVE_DUPLEX_DEST=7. -8. -LOG_ARCHIVE_FORMAT=%t_%s_%r.dbf9. -10. -DB_UNIQUE_NAME=uniguard11. -12. -LOG_ARCHIVE_CONFIG=SEND,RECEIVE,NODG_CONFIG13. -LOG_ARCHIVE_MAX_PROCESSES=214. -STANDBY_FILE_MANAGEMENT=MANUAL15. -STANDBY_ARCHIVE_DEST=?/dbs/arch16. -FAL_CLIENT=17. -FAL_SERVER=18. -19. -LOG_ARCHIVE_DEST_10=LOCATION=USE_DB_RECOVERY_FILE_DEST20. -LOG_ARCHIVE_DEST_10=OPTIONALREOPEN=300NODELAY21. -LOG_ARCHIVE_DEST_10=ARCHNOAFFIRMNOEXPEDITENOVERIFYSYNC22. -LOG_ARCHIVE_DEST_10=REGISTERNOALTERNATENODEPENDENCY23. -LOG_ARCHIVE_DEST_10=NOMAX_FAILURENOQUOTA_SIZENOQUOTA_USEDNODB_UNIQUE_NAME24. -LOG_ARCHIVE_DEST_10=VALID_FOR=(PRIMARY_ROLE,ONLINE_LOGFILES)25. -LOG_ARCHIVE_DEST_STATE_10=ENABLE-26. -BelowaretwosetsofSQLstatements,eachofwhichcreatesanew27. -controlfileandusesittoopenthedatabase.Thefirstsetopens28. -thedatabasewiththeNORESETLOGSoptionandshouldbeusedonlyif29. -thecurrentversionsofallonlinelogsareavailable.Thesecond30. -setopensthedatabasewiththeRESETLOGSoptionandshouldbeused31. -ifonlinelogsareunavailable.32. -Theappropriatesetofstatementscanbecopiedfromthetraceinto33. -ascriptfile,editedasnecessary,andexecutedwhenthereisa34. -needtore-createthecontrolfile.35. -36. -Set#1.NORESETLOGScase37. -38. -Thefollowingcommandswillcreateanewcontrolfileanduseit39. -toopenthedatabase.40. -DatausedbyRecoveryManagerwillbelost.41. -Additionallogsmayberequiredformediarecoveryofoffline42. -Usethisonlyifthecurrentversionsofallonlinelogsare43. -available.44. -Aftermountingthecreatedcontrolfile,thefollowingSQL45. -statementwillplacethedatabaseintheappropriate46. -protectionmode:47. -ALTERDATABASESETSTANDBYDATABASETOMAXIMIZEPERFORMANCESTARTUPNOMOUNT48. CREATECONTROLFILEREUSEDATABASEUNIGUARDNORESETLOGSNOARCHIVELOG49. MAXLOGFILES1650. MAXLOGMEMBERS351. MAXDATAFILES10052. MAXINSTANCES853. MAXLOGHISTORY467254. LOGFILE55. GROUP1/product/app/oracle/oradata/uniguard/redo01.logSIZE50M,56. GROUP2/product/app/oracle/oradata/uniguard/redo02.logSIZE50M,57. GROUP3/product/app/oracle/oradata/uniguard/redo03.logSIZE50M58. -STANDBYLOGFILEDATAFILE59. /product/app/oracle/oradata/uniguard/system01.dbf,60. /product/app/oracle/oradata/uniguard/undotbs01.dbf,61. /product/app/oracle/oradata/uniguard/sysaux01.dbf,62. /product/app/oracle/oradata/uniguard/users01.dbf,63. /product/app/oracle/oradata/uniguard/info01.dbf,64. /product/app/oracle/oradata/uniguard/index01.dbf,65. /product/app/oracle/oradata/uniguard/dev01.dbf,66. /product/app/oracle/oradata/uniguard/index02.dbf,67. /product/app/oracle/oradata/uniguard/dev02.dbf,68. /product/app/oracle/oradata/uniguard/dev03.dbf,69. /product/app/oracle/oradata/uniguard/dev04.dbf70. CHARACTERSETZHS16GBK;71. -Commandstore-createincarnationtable72. -BelowlognamesMUSTbechangedtoexistingfilenameson73. -disk.Anyonelogfilefromeachbranchcanbeusedto74. -re-createincarnationrecords.75. -ALTERDATABASEREGISTERLOGFILE/product/app/oracle/flash_recovery_area/UNIGUARD/archivelog/2012_04_11/o1_mf_1_1_%u_.arc;76. -ALTERDATABASEREGISTERLOGFILE/product/app/oracle/flash_recovery_area/UNIGUARD/archivelog/2012_04_11/o1_mf_1_1_%u_.arc;77. -Recoveryisrequiredifanyofthedatafilesarerestoredbackups,78. -orifthelastshutdownwasnotnormalorimmediate.79. RECOVERDATABASE80. -Databasecannowbeopenednormally.81. ALTERDATABASEOPEN;82. -Commandstoaddtempfilestotemporarytablespaces.83. -Onlinetempfileshavecompletespaceinformation.84. -Othertempfilesmayrequireadjustment.85. ALTERTABLESPACETEMPADDTEMPFILE/product/app/oracle/oradata/uniguard/temp01.dbf86. SIZE737148928REUSEAUTOEXTENDONNEXT655360MAXSIZE32767M;87. -Endoftempfileadditions.88. -89. -Set#2.RESETLOGScase90. -91. -Thefollowingcommandswillcreateanewcontrolfileanduseit编辑这个trace文件,我们就可以获得创建控制文件的sql.htmlview plaincopy1. sqlSTARTUPNOMOUNT2. sqlCREATECONTROLFILEREUSEDATABASEUNIGUARDNORESETLOGSNOARCHIVELOG3. MAXLOGFILES164. MAXLOGMEMBERS35. MAXDATAFILES1006. MAXINSTANCES87. MAXLOGHISTORY46728. LOGFILE9. GROUP1/product/app/oracle/oradata/uniguard/redo01.logSIZE50M,10. GROUP2/product/app/oracle/oradata/uniguard/redo02.logSIZE50M,11. GROUP3/product/app/oracle/oradata/uniguard/redo03.logSIZE50M12. -STANDBYLOGFILE13. DATAFILE14. /product/app/oracle/oradata/uniguard/system01.dbf,15. /product/app/oracle/oradata/uniguard/undotbs01.dbf,16. /product/app/oracle/oradata/uniguard/sysaux01.dbf,17. /product/app/oracle/oradata/uniguard/users01.dbf,18. /product/app/oracle/oradata/uniguard/info01.dbf,19. /index/oradata/uniguard/index01.dbf,20. /devdata/oradata/uniguard/index01.dbf,21. /devdata/oradata/uniguard/indexdata02.dbf,22. /devdata/oradata/uniguard/dev01.dbf23. CHARACTERSETZHS16GBK24. ;25. sqlRECOVERDATABASE26. sqlALTERDATABASEOPEN;27. sqlALTERTABLESPACETEMPADDTEMPFILE/product/app/oracle/oradata/uniguard/temp01.dbf28. SIZE1244667904REUSEAUTOEXTENDONNEXT655360MAXSIZE32767M;29. 以上给出生成创建控制文件脚本并重建控制文件的方法，但是具体恢复中遇到的问题可能需要具体对待,当得不到trace文件，可根据这个格式，查看数据文件，更改相关内容再重建.这种方法通常是在没有控制文件(二进制文件)备份的情况下所采用的，如果存在备份应该使用备份的控制文件尝试恢复.注：sqlview plaincopySQLalterdatabasebackupcontrolfiletohomeoraclebackupcontrol.bkp;1. /备份二进制控制文件范例二重建控制文件2012-06-12 21:37:11分类：Oracle环境:OS:Red Hat Linux As 5DB:在全部控制文件丢失或损坏，而且没有备份的情况下,可以使用重建控制文件的办法打开数据库.以下模拟所有的控制文件丢失的情况下重建控制文件.1.备份控制文件(数据库mount或是open状态)SQL select status from v$instance;STATUS-OPENSQLalter database backup controlfile to trace as /u01/ftp/bak_controlfile;2.删除控制文件oraclehxl oracl$ rm control01.ctlrm: remove regular file control01.ctl? yoraclehxl oracl$ rm control02.ctlrm: remove regular file control02.ctl? yoraclehxl oracl$ rm control03.ctlrm: remove regular file control03.ctl? y3.关闭数据库后尝试打开数据库SQL shutdown immediateDatabase closed.Database dismounted.ORACLE instance shut down.SQL startupORACLE instance started.Total System Global Area 734003200 bytesFixed Size 1221564 bytesVariable Size 218106948 bytesDatabase Buffers 511705088 bytesRedo Buffers 2969600 bytesORA-00205: error in identifying control file, check alert log for more info这个时候数据无法打开,以为我们已经删除了控制文件.4.查看备份控制文件的内容oraclehxl ftp$ more bak_controlfile- The following are current System-scope REDO Log Archival related- parameters and can be included in the database initialization file.- LOG_ARCHIVE_DEST=- LOG_ARCHIVE_DUPLEX_DEST=- LOG_ARCHIVE_FORMAT=%t_%s_%r.dbf- DB_UNIQUE_NAME=oracl- LOG_ARCHIVE_CONFIG=SEND, RECEIVE, NODG_CONFIG- LOG_ARCHIVE_MAX_PROCESSES=2- STANDBY_FILE_MANAGEMENT=MANUAL- STANDBY_ARCHIVE_DEST=?/dbs/arch- FAL_CLIENT=- FAL_SERVER=- LOG_ARCHIVE_DEST_10=LOCATION=USE_DB_RECOVERY_FILE_DEST- LOG_ARCHIVE_DEST_10=OPTIONAL REOPEN=300 NODELAY- LOG_ARCHIVE_DEST_10=ARCH NOAFFIRM NOEXPEDITE NOVERIFY SYNC- LOG_ARCHIVE_DEST_10=REGISTER NOALTERNATE NODEPENDENCY- LOG_ARCHIVE_DEST_10=NOMAX_FAILURE NOQUOTA_SIZE NOQUOTA_USED NODB_UNIQUE_NAME- LOG_ARCHIVE_DEST_10=VALID_FOR=(PRIMARY_ROLE,ONLINE_LOGFILES)- LOG_ARCHIVE_DEST_STATE_10=ENABLE- Below are two sets of SQL statements, each of which creates a new- control file and uses it to open the database. The first set opens- the database with the NORESETLOGS option and should be used only if- the current versions of all online logs are available. The second- set opens the database with the RESETLOGS option and should be used- if online logs are unavailable.- The appropriate set of statements can be copied from the trace into- a script file, edited as necessary, and executed when there is a- need to re-create the control file.- Set #1. NORESETLOGS case- The following commands will create a new control file and use it- to open the database.- Data used by Recovery Manager will be lost.- Additional logs may be required for media recovery of offline- Use this only if the current versions of all online logs are- available.- After mounting the created controlfile, the following SQL- statement will place the database in the appropriate- protection mode:- ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCESTARTUP NOMOUNTCREATE CONTROLFILE REUSE DATABASE ORACL NORESETLOGS ARCHIVELOG MAXLOGFILES 16 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 8 MAXLOGHISTORY 292LOGFILE GROUP 1 /u01/app/oracle/oradata/oracl/redo01.log SIZE 50M, GROUP 2 /u01/app/oracle/oradata/oracl/redo02.log SIZE 50M, GROUP 3 /u01/app/oracle/oradata/oracl/redo03.log SIZE 50M- STANDBY LOGFILEDATAFILE /u01/app/oracle/oradata/oracl/system01.dbf, /u01/app/oracle/oradata/oracl/undotbs01.dbf, /u01/app/oracle/oradata/oracl/sysaux01.dbf, /u01/app/oracle/oradata/oracl/users01.dbfCHARACTER SET WE8ISO8859P1;- Commands to re-create incarnation table- Below log names MUST be changed to existing filenames on- disk. Any one log file from each branch can be used to- re-create incarnation records.- ALTER DATABASE REGISTER LOGFILE /u01/app/oracle/flash_recovery_area/ORACL/archivelog/2012_06_12/o1_mf_1_1_%u_.arc;- ALTER DATABASE REGISTER LOGFILE /u01/app/oracle/flash_recovery_area/ORACL/archivelog/2012_06_12/o1_mf_1_1_%u_.arc;- ALTER DATABASE REGISTER LOGFILE /u01/app/oracle/flash_recovery_area/ORACL/archivelog/2012_06_12/o1_mf_1_1_%u_.arc;- ALTER DATABASE REGISTER LOGFILE /u01/app/oracle/flash_recovery_area/ORACL/archivelog/2012_06_12/o1_mf_1_1_%u_.arc;- Recovery is required if any of the datafiles are restored backups,- or if the last shutdown was not normal or immediate.RECOVER DATABASE- All logs need archiving and a log switch is needed.ALTER SYSTEM ARCHIVE LOG ALL;- Database can now be opened normally.ALTER DATABASE OPEN;- Commands to add tempfiles to temporary tablespaces.- Online tempfiles have complete space information.- Other tempfiles may require adjustment.ALTER TABLESPACE TEMP ADD TEMPFILE /u01/app/oracle/oradata/oracl/temp01.dbf SIZE 20971520 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;- End of tempfile additions.- Set #2. RESETLOGS case- The following commands will create a new control file and use it- to open the database.- Data used by Recovery Manager will be lost.- The contents of online logs will be lost and all backups will- be invalidated. Use this only if online logs are damaged.- After mounting the created controlfile, the following SQL- statement will place the database in the appropriate- protection mode:- ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCESTARTUP NOMOUNTCREATE CONTROLFILE REUSE DATABASE ORACL RESETLOGS ARCHIVELOG MAXLOGFILES 16 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 8 MAXLOGHISTORY 292LOGFILE GROUP 1 /u01/app/oracle/oradata/oracl/redo01.log SIZE 50M, GROUP 2 /u01/app/oracle/oradata/oracl/redo02.log SIZE 50M, GROUP 3 /u01/app/oracle/oradata/oracl/redo03.log SIZE 50M- STANDBY LOGFILEDATAFILE /u01/app/oracle/oradata/oracl/system01.dbf, /u01/app/oracle/oradata/oracl/undotbs01.dbf, /u01/app/oracle/oradata/oracl/sysaux01.dbf, /u01/app/oracle/oradata/oracl/users01.dbfCHARACTER SET WE8ISO8859P1;- Commands to re-create incarnation table- Below log names MUST be changed to existing filenames on- disk. Any one log file from each branch can be used to- re-create incarnation records.- ALTER DATABASE REGISTER LOGFILE /u01/app/oracle/flash_recovery_area/ORACL/archivelog/2012_06_12/o1_mf_1_1_%u_.arc;- ALTER DATABASE REGISTER LOGFILE /u01/app/oracle/flash_recovery_area/ORACL/archivelog/2012_06_12/o1_mf_1_1_%u_.arc;- ALTER DATABASE REGISTER LOGFILE /u01/app/oracle/flash_recovery_area/ORACL/archivelog/2012_06_12/o1_mf_1_1_%u_.arc;- ALTER DATABASE REGISTER LOGFILE /u01/app/oracle/flash_recovery_area/ORACL/archivelog/2012_06_12/o1_mf_1_1_%u_.arc;- Recovery is required if any of the datafiles are restored backups,-