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在操作系統損壞時恢復Oracle10g全過程

  環境:oracle10g,操作系統5.2

  數據庫系統在rootvg下/oracle文件系統下,

  數據文件在datavg下/oradata文件系統下

  控制文件在 $/ORACLE_HOME/dbs/一個和/oradata下兩個

  重做日志文件在 $/ORACLE_HOME/dbs/和/oradata下每組日志文件各一個,共三組

  有最新spfile文件備份。

  1、rootvg損壞,重新安裝操作系統。

  2、安裝oracle數據庫系統文件

  3、恢復spfile文件到$/ORACLE_HOME/dbs/下,

  4、startup nomount,出現錯誤提示,建立$/ORACLE_BASE/hb052500/cdump 和udump

  5、startup nomount,出現錯誤提示

  SQL> startup nomount

  ORA-00444: background process "MMAN" failed while starting

  ORA-07446: sdnfy: bad value '' for parameter .

  ORA-07446 sdnfy: bad value 'string' for parameter string.

  Cause: The directory specified as the value for the stated parameter could not

  be used.

  Action: Make sure the directory you have specified is a valid directory/file

  specification.

  6、建立pfile文件

  SQL> create pfile from spfile;

  File created.

  7、查看pfile文件,按照pfile文件中列出的路徑,建立相應路徑後台進程目錄和歸檔目錄

  *.log_archive_dest_1='LOCATION=/oracle/app/oracle/OraHome/dbs/archive'

  *.background_dump_dest='/oracle/app/oracle/admin/hb052500/bdump'

  $ cd $/ORACLE_BASE/hb052500/

  $ ls

  cdump udump

  $ mkdir bdump

  $ cd $ORACLE_HOME/dbs/

  $ ls

  hb052500 init.ora inithb052500.ora

  hc_hb052500.dat initdw.ora spfilehb052500.ora

  $ mkdir archive

  8、startup nomount成功。

  $ sqlplus /nolog

  SQL*Plus: Release 10.1.0.2.0 - Production on Sun Oct 16 21:23:17 2005

  Copyright (c) 1982, 2004, Oracle. All rights reserved.

  SQL> conn / as sysdba

  Connected to an idle instance.

  SQL> startup nomount;

  ORACLE instance started.

  Total System Global Area 289406976 bytes

  Fixed Size 1328912 bytes

  Variable Size 262387952 bytes

  Database Buffers 25165824 bytes

  Redo Buffers 524288 bytes

  SQL>

  9、alter database mount,出現錯誤提示

  SQL> alter database mount;

  alter database mount

  *

  ERROR at line 1:

  ORA-01990: error opening password file '/oracle/app/oracle/OraHome/dbs/orapw'

  ORA-27037: unable to obtain file status

  IBM AIX RISC System/6000 Error: 2: No such file or directory

  Additional information: 3

  10、建立口令文件

  orapwd file=$ORACLE_HOME/dbs/orapwd.ora password=oracle

  11、

  SQL> alter database mount;

  alter database mount

  *

  ERROR at line 1:

  ORA-01100: database already mounted

  SQL> alter database open;

  alter database open

  *

  ERROR at line 1:

  ORA-38760: This database instance failed to turn on flashback database

  SQL> alter database flashback off;

  Database altered.

  SQL> alter database open;

  Database altered.

  SQL> archive log list;

  Database log mode Archive Mode

  Automatic archival Enabled

  Archive destination /oracle/app/oracle/OraHome/dbs/archive

  Oldest online log sequence 614

  Next log sequence to archive 616

  Current log sequence 616

 

  SQL>

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