一个错误的数据文件的恢复
环境:RHEL AS3 测试库
12:03:07 SQL> select * from v$version;
BANNER
----------------------------------------------------------------
Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
PL/SQL Release 9.2.0.4.0 - Production
CORE 9.2.0.3.0 Production
TNS for Linux: Version 9.2.0.4.0 - Production
NLSRTL Version 9.2.0.4.0 – Production
问题: 测试库不能正常SHUTDOWN
SQL>shutdown immediate;
ORA-01116: error in opening database file 15
ORA-01110: data file 15: '/SERVER/ora9/oradata/ora9
'
ORA-27041: unable to open file
Linux Error: 2: No such file or directory
查看数据文件.
SQL>select file_id,file_name,tablespace_name from dba_data_files
1 /SERVER/ora9/oradata/ora9/system01.dbf SYSTEM
2 /SERVER/ora9/oradata/ora9/hyf.dbf HYF
3 /SERVER/ora9/oradata/ora9/cwmlite01.dbf CWMLITE
4 /SERVER/ora9/oradata/ora9/drsys01.dbf DRSYS
5 /SERVER/ora9/oradata/ora9/indx01.dbf INDX
6 /SERVER/ora9/oradata/ora9/odm01.dbf ODM
7 /SERVER/ora9/oradata/ora9/tools01.dbf TOOLS
8 /SERVER/ora9/oradata/ora9/users01.dbf USERS
9 /SERVER/ora9/oradata/ora9/xdb01.dbf XDB
10 /SERVER/ora9/oradata/ora9/t2007q1.dbf T2007Q1
11 /SERVER/ora9/oradata/ora9/t2007q2.dbf T2007Q2
12 /SERVER/ora9/oradata/ora9/t2007q3.dbf T2007Q3
13 /SERVER/ora9/oradata/ora9/t2007q4.dbf T2007Q4
14 /SERVER/ora9/oradata/ora9/undo.dbf UNDO
15 /SERVER/ora9/oradata/ora9 USERDATA
16 /SERVER/ora9/oradata/ora9/atu.dbf ATU
发现datafile 15 的文件名跟我的目录名一样.
想直接删除表空间:
SQL>drop tablespace USERDATA ;
ORA-01116: error in opening database file 15
ORA-01110: data file 15: '/SERVER/ora9/oradata/ora9
'
ORA-27041: unable to open file
Linux Error: 2: No such file or directory
OFFLINE:
SQL>alter tablespace UESRDATA offline;
ORA-01116: error in opening database file 15
ORA-01110: data file 15: '/SERVER/ora9/oradata/ora9
'
ORA-27041: unable to open file
Linux Error: 2: No such file or directory
试着更名,可是不能OFFLINE也不能改名.
想到的办法是:重建控制文件了.
- 先SHUTDOWN ABORT;
- STARTUP MOUNT:
- Alter database backup controlfile to trace;
得到重建控制文件脚本;
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "ORA9" RESETLOGS FORCE LOGGING ARCHIVELOG
-- SET STANDBY TO MAXIMIZE PERFORMANCE
MAXLOGFILES 5
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 1
MAXLOGHISTORY 226
LOGFILE
GROUP 1 '/SERVER/ora9/oradata/ora9/redo01.log' SIZE 20M,
GROUP 2 '/SERVER/ora9/oradata/ora9/redo02.log' SIZE 20M,
GROUP 3 '/SERVER/ora9/oradata/ora9/redo03.log' SIZE 20M
-- STANDBY LOGFILE
DATAFILE
'/SERVER/ora9/oradata/ora9/drsys01.dbf',
'/SERVER/ora9/oradata/ora9/indx01.dbf',
'/SERVER/ora9/oradata/ora9/odm01.dbf',
'/SERVER/ora9/oradata/ora9/tools01.dbf',
'/SERVER/ora9/oradata/ora9/users01.dbf',
'/SERVER/ora9/oradata/ora9/xdb01.dbf',
'/SERVER/ora9/oradata/ora9/t2007q1.dbf',
'/SERVER/ora9/oradata/ora9/t2007q2.dbf',
'/SERVER/ora9/oradata/ora9/t2007q3.dbf',
'/SERVER/ora9/oradata/ora9/t2007q4.dbf',
'/SERVER/ora9/oradata/ora9/undo.dbf',
'/SERVER/ora9/oradata/ora9',
'/SERVER/ora9/oradata/ora9/atu.dbf'
CHARACTER SET ZHS16GBK
并在脚本中删除错误的数据文件: '/SERVER/ora9/oradata/ora9'
在重建控制文件后,试着打开数据库:
11:37:28 SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/SERVER/ora9/oradata/ora9/system01.dbf'
//需要恢复
11:38:13 SQL> recover database using backup controlfile;
ORA-00279: change 10703011 generated at 12/19/2007 07:22:31 needed for thread
ORA-00289: suggestion : /SERVER/ora9/arc/1_108.dbf
ORA-00280: change 10703011 for thread 1 is in sequence #108
11:38:31 Specify log: {
/SERVER/ora9/oradata/ora9/redo02.log
ORA-00310: archived log contains sequence 107; sequence 108 required
ORA-00334: archived log: '/SERVER/ora9/oradata/ora9/redo02.log'
11:38:41 SQL> recover database using backup controlfile;
ORA-00279: change 10703011 generated at 12/19/2007 07:22:31 needed for thread
ORA-00289: suggestion : /SERVER/ora9/arc/1_108.dbf
ORA-00280: change 10703011 for thread 1 is in sequence #108
11:39:16 Specify log: {
/SERVER/ora9/oradata/ora9/redo03.log (使用的是当前日志)
ORA-00283: recovery session canceled due to errors
ORA-01244: unnamed datafile(s) added to controlfile by media recovery
ORA-01110: data file 15: '/SERVER/ora9/oradata/ora9
'
ORA-01112: media recovery not started
11:42:07 SQL> recover database using backup controlfile;
ORA-00283: recovery session canceled due to errors
ORA-01111: name for data file 15 is unknown - rename to correct file
ORA-01110: data file 15: '/SERVER/ora9/product/9.2/dbs/UNNAMED00015'
ORA-01157: cannot identify/lock data file 15 - see DBWR trace file
ORA-01111: name for data file 15 is unknown - rename to correct file
ORA-01110: data file 15: '/SERVER/ora9/product/9.2/dbs/UNNAMED00015'
由于系统表空间中,在记录这个数据文件,而在控制文件中没有,所以系统报这个错误.
11:49:00 SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/SERVER/ora9/oradata/ora9/system01.dbf
/SERVER/ora9/oradata/ora9/hyf.dbf
/SERVER/ora9/oradata/ora9/cwmlite01.dbf
/SERVER/ora9/oradata/ora9/drsys01.dbf
/SERVER/ora9/oradata/ora9/indx01.dbf
/SERVER/ora9/oradata/ora9/odm01.dbf
/SERVER/ora9/oradata/ora9/tools01.dbf
/SERVER/ora9/oradata/ora9/users01.dbf
/SERVER/ora9/oradata/ora9/xdb01.dbf
/SERVER/ora9/oradata/ora9/t2007q1.dbf
/SERVER/ora9/oradata/ora9/t2007q2.dbf
NAME
--------------------------------------------------------------------------------
/SERVER/ora9/oradata/ora9/t2007q3.dbf
/SERVER/ora9/oradata/ora9/t2007q4.dbf
/SERVER/ora9/oradata/ora9/undo.dbf
/SERVER/ora9/product/9.2/dbs/UNNAMED00015
/SERVER/ora9/oradata/ora9/atu.dbf
16 rows selected.
11:49:07 SQL> alter database datafile '/SERVER/ora9/product/9.2/dbs/UNNAMED00015' offline;
Database altered.
11:53:43 SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-01113: file 1 needs media recovery
ORA-01110: data file 1: '/SERVER/ora9/oradata/ora9/system01.dbf'
11:54:34 SQL> recover database using backup controlfile;
ORA-00279: change 10712117 generated at 12/19/2007 10:12:24 needed for thread 1
ORA-00289: suggestion : /SERVER/ora9/arc/1_108.dbf
ORA-00280: change 10712117 for thread 1 is in sequence #108
11:54:45 Specify log: {
/SERVER/ora9/oradata/ora9/redo03.log (当前日志)
Log applied.
Media recovery complete.
11:55:01 SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-01245: offline file 15 will be lost if RESETLOGS is done
ORA-01111: name for data file 15 is unknown - rename to correct file
ORA-01110: data file 15: '/SERVER/ora9/product/9.2/dbs/UNNAMED00015'
11:55:09 SQL> alter database datafile '/SERVER/ora9/product/9.2/dbs/UNNAMED00015' offline;
Database altered.
11:55:32 SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-01245: offline file 15 will be lost if RESETLOGS is done
ORA-01111: name for data file 15 is unknown - rename to correct file
ORA-01110: data file 15: '/SERVER/ora9/product/9.2/dbs/UNNAMED00015'
11:58:47 SQL> alter database datafile 15 offline drop;
Database altered.
12:01:55 SQL> alter database open resetlogs;
Database altered.
到此,数据库正常打开,恢复全部完成.
后绪工作:
1. 增加临时文件:
alter tablespace temp add tempfile
'/SERVER/ora9/oradata/ora9/temp01.dbf' size 200M reuse;
2 . 做一个RMAN全备.
后续思考的问题:
这个错误的数据文件是怎么被系统(LINUX,ORACLE)接受的??
当我在安全备份后,想重演一下错误的发生过程时:却不成功. 13:50: SQL> create tablespace test1 datafile ' RVER/ora9/oradata/ora9' size 20M ;13:52:06 2 create tablespace test1 * ERROR at line 1: ORA-01119: error in creating database file ' RVER/ora9/oradata/ora9' ORA-27038: skgfrcre: file exists
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