基於使用者控制的oracle熱備檔案的異機恢複

來源:互聯網
上載者:User

測試目的:檢測windows下oracle熱備檔案含spfile,控制檔案,資料檔案,歸檔日誌,非rman方式)異機恢複,非原路徑下的恢複可用性。

測試環境:windows 2003 R2,ORACLE 11G R2

測試步驟:

1,將原執行個體的熱備檔案拷貝到待測試環境中

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2,將spfile備份檔案拷貝到$ORACLE_HOME/dbs/中,通過該參數檔案在sqlplus下建立一份靜態參數檔案:

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3,編輯產生的靜態參數檔案,採用測試平台適用的參數,並刪除spfile檔案已讓執行個體從靜態參數檔案啟動),這裡主要修改了一些路經參數:

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4,將資料庫啟動的mount狀態,已讀取來源資料庫中資料檔案的儲存資訊,並修改成測試平台資料檔案的儲存資訊,通過以下語句產生批量修改sql:

select 'alter database rename file '''||name||''' to ''E:\hot_backup_2013-12-06\'||substr(name,36)||''' ;' from v$datafile;

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5,複製產生的sql語句並執行,檢查是否修改成功:

select name from v$datafile;




6,由於重做記錄檔無法在這種情況下修改路徑,所以必須通過備份控制檔案到trace中,然後手動修改重做記錄檔地址的方式實現重新命名重做記錄檔:

alter database backup controlfile to trace;

查看警示日誌,定位到trace檔案名稱:

alter database backup controlfile to trace    
Backup controlfile written to trace file e:\app\administrator\log\diagnostic_dest\diag\rdbms\zstoa\zstoa\trace\zstoa_ora_3520.trc    
Completed: alter database backup controlfile to trace

複製trace中的建立controlfile代碼將"NORESETLOGS”修改為"RESETLOGS"),修改其中的重做日誌資訊,一定要注意的是編輯格式,多一個空格或單引號寫錯都會造成建立失敗:

   1:CREATE CONTROLFILE REUSE DATABASE "ZSTOA" RESETLOGS FORCE LOGGING ARCHIVELOG
   2:     MAXLOGFILES 16
   3:     MAXLOGMEMBERS 3
   4:     MAXDATAFILES 100
   5:     MAXINSTANCES 8
   6:     MAXLOGHISTORY 292
   7: LOGFILE
   8:GROUP 4 (
   9:'E:\ZSTOA\REDO04_01.LOG',
  10:'E:\ZSTOA\REDO04_02.LOG'
  11:   ) SIZE 200M BLOCKSIZE 512,
  12:GROUP 5 (
  13:'E:\ZSTOA\REDO05_01.LOG',
  14:'E:\ZSTOA\REDO05_02.LOG'
  15:   ) SIZE 200M BLOCKSIZE 512,
  16:GROUP 6 (
  17:'E:\ZSTOA\REDO06_01.LOG',
  18:'E:\ZSTOA\REDO06_02.LOG'
  19:   ) SIZE 200M BLOCKSIZE 512
  20: DATAFILE
  21:'E:\ZSTOA\SYSTEM01.DBF',
  22:'E:\ZSTOA\SYSAUX01.DBF',
  23:'E:\ZSTOA\UNDOTBS01.DBF',
  24:'E:\ZSTOA\USERS01.DBF',
  25:'E:\ZSTOA\TBS_V3XSPACE_01.DBF',
  26:'E:\ZSTOA\TBS_V3XSPACE_02.DBF',
  27:'E:\ZSTOA\TBS_V3XSPACE_03.DBF',
  28:'E:\ZSTOA\UNDOTBS_FILE2'
  29:CHARACTERSET AL32UTF8

7,關閉資料庫,啟動到nomount模式,刪除或重新命名之前用的控制檔案,執行上面代碼建立控制檔案:

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8,將資料庫啟動到mount模式

alter database mount;

9,通過歸檔日誌還原資料庫,恢複過程中指定歸檔檔案路徑

recover database using backup controlfile until cancel

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10,恢複完成後,通過resetlogs模式啟動資料庫:

alter database open resetlogs;

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