参考 ：
http://www.lunar2013.com/2013/06/linux-%E8%AF%AF%E5%88%A0%E9%99%A4%E6%96%87%E4%BB%B6%E6%81%A2%E5%A4%8D.html
Last
login: Sun Jan 26 22:36:10 2014 from 10.10.10.5
root>/root#su -
oracle
oracle>/home/oracle$sqlplus / as sysdba
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Jan 29 02:32:35
2014
Copyright (c) 1982, 2007, Oracle. All Rights
Reserved.
--查看表空间信息
SYS@ora10gr2>select tablespace_name
from dba_tablespaces
;
TABLESPACE_NAME
------------------------------------------------------------
SYSTEM
UNDOTBS1
SYSAUX
TEMP
USERS
--
查看数据文件信息
SYS@ora10gr2>select name from v$datafile
;
NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/orcl/system01.dbf
/u01/app/oracle/oradata/orcl/undotbs01.dbf
/u01/app/oracle/oradata/orcl/sysaux01.dbf
/u01/app/oracle/oradata/orcl/users01.dbf
--创建测试表空间
SYS@ora10gr2>create
tablespace ziyoo_test datafile ‘/home/oracle/ziyoo_test01.dbf‘ size 10m
;
Tablespace created.
--创建测试用户
SYS@ora10gr2>create user
ziyoo default tablespace ziyoo_test identified by "oracle_4U"
;
User created.
--授予用户权限
SYS@ora10gr2>grant connect
,resource to ziyoo ;
Grant
succeeded.
--以测试用户登录
SYS@ora10gr2>conn ziyoo
Enter password:
Connected.
--创建测试表
ZIYOO@ora10gr2>create table test_ziyoo (
name varchar2(300)) tablespace ziyoo_test;
Table
created.
--插入测试数据
ZIYOO@ora10gr2>insert into test_ziyoo values
(‘Love you foreve,my baby,Happy new Year!‘) ;
1 row
created.
ZIYOO@ora10gr2>commit ;
Commit
complete.
ZIYOO@ora10gr2>select * from test_ziyoo
;
NAME
--------------------------------------------------------------------------------
Love
you foreve,my baby,Happy new Year!
--删除数据文件
ZIYOO@ora10gr2>! rm
-rf /home/oracle/ziyoo_test01.dbf
--确认是否删除
ZIYOO@ora10gr2>! ls -l
/home/oracle/ziyoo_test01.dbf
ls: /home/oracle/ziyoo_test01.dbf: No
such file or directory
ZIYOO@ora10gr2>conn ziyoo
Enter
password:
Connected.
--查询数据
ZIYOO@ora10gr2>select * from
test_ziyoo
;
NAME
--------------------------------------------------------------------------------
Love
you foreve,my baby,Happy new Year!
ZIYOO@ora10gr2>conn / as
sysdba
Connected.
--上面有数据是由于data buffer的原因，清空缓存
SYS@ora10gr2>alter system flush buffer_cache ;
System
altered.
SYS@ora10gr2>conn ziyoo
Enter password:
Connected.
--验证数据丢失
ZIYOO@ora10gr2>select * from test_ziyoo
;
select * from test_ziyoo
*
ERROR at line 1:
ORA-01116: error
in opening database file 5
ORA-01110: data file 5:
‘/home/oracle/ziyoo_test01.dbf‘
ORA-27041: unable to open file
Linux
Error: 2: No such file or directory
Additional information: 3
--
获取dbwr进程信息
ZIYOO@ora10gr2>! ps -ef | grep
dbw
oracle 6400 1 0
02:49 ? 00:00:01
ora_dbw0_ora10gr2
oracle 6523 6388 12 02:58
pts/1 00:00:00 /bin/bash -c ps -ef | grep
dbw
oracle 6525 6523 6 02:58
pts/1 00:00:00 grep dbw
--lsof 显示系统打开的文件
ZIYOO@ora10gr2>!/usr/sbin/lsof -p 6400
COMMAND
PID USER FD TYPE
DEVICE SIZE NODE
NAME
oracle 6400 oracle cwd
DIR 8,3 4096
163398 /u01/app/oracle/product/10.2/db_1/dbs
oracle 6400
oracle rtd DIR
8,3
4096 2 /
oracle 6400
oracle txt REG 8,3
96725784 174475
/u01/app/oracle/product/10.2/db_1/bin/oracle
oracle 6400
oracle mem REG
8,3 112388 1060803
/lib/ld-2.3.4.so
oracle 6400 oracle mem
REG 8,3 1551908 81891
/lib/tls/libc-2.3.4.so
oracle 6400 oracle
mem REG
8,3 16808 1060804
/lib/libdl-2.3.4.so
oracle 6400 oracle
mem REG 8,3
215180 81892 /lib/tls/libm-2.3.4.so
oracle 6400
oracle mem REG
8,3 108536 81893
/lib/tls/libpthread-2.3.4.so
oracle 6400 oracle
mem REG 8,3
101924 1060811 /lib/libnsl-2.3.4.so
oracle 6400 oracle
DEL REG
0,6
0 /SYSVa0a094cc
oracle 6400 oracle mem
CHR
1,5
2777 /dev/zero
oracle 6400 oracle mem
REG 8,3 1544
174538
/u01/app/oracle/product/10.2/db_1/dbs/hc_ora10gr2.dat
oracle 6400
oracle mem REG
8,3 47488 538610
/lib/libnss_files-2.3.4.so
oracle 6400 oracle
mem REG
8,3 14104 1872904
/usr/lib/libnuma.so.1
oracle 6400 oracle
mem REG
8,3 2628 1876353
/usr/lib/libaio.so.1.0.1
oracle 6400 oracle
mem REG 8,3
5656445 173189
/u01/app/oracle/product/10.2/db_1/lib/libnnz10.so
oracle 6400
oracle mem REG
8,3 102317 167881
/u01/app/oracle/product/10.2/db_1/lib/libdbcfg10.so
oracle 6400
oracle mem REG
8,3 71921 172640
/u01/app/oracle/product/10.2/db_1/lib/libclsra10.so
oracle 6400
oracle mem REG
8,3 9082654 165671
/u01/app/oracle/product/10.2/db_1/lib/libjox10.so
oracle 6400
oracle mem REG
8,3 756215 172606
/u01/app/oracle/product/10.2/db_1/lib/libocrutl10.so
oracle 6400
oracle mem REG
8,3 1314712 172605
/u01/app/oracle/product/10.2/db_1/lib/libocrb10.so
oracle 6400
oracle mem REG
8,3 914160 172604
/u01/app/oracle/product/10.2/db_1/lib/libocr10.so
oracle 6400
oracle mem REG
8,3 8069 167992
/u01/app/oracle/product/10.2/db_1/lib/libskgxn2.so
oracle 6400
oracle mem REG
8,3 2425042 172639
/u01/app/oracle/product/10.2/db_1/lib/libhasgen10.so
oracle 6400
oracle mem REG
8,3 149502 164651
/u01/app/oracle/product/10.2/db_1/lib/libskgxp10.so
oracle 6400
oracle 0r CHR
1,3
2776 /dev/null
oracle 6400 oracle
1r CHR
1,3
2776 /dev/null
oracle 6400 oracle
2r CHR
1,3
2776 /dev/null
oracle 6400 oracle
3r CHR
1,3
2776 /dev/null
oracle 6400 oracle
4r CHR
1,3
2776 /dev/null
oracle 6400 oracle
5w REG
8,3 680 962968
/u01/app/oracle/admin/ora10gr2/udump/ora10gr2_ora_6389.trc
oracle
6400 oracle 6w REG
8,3 110983 343618
/u01/app/oracle/admin/ora10gr2/bdump/alert_ora10gr2.log
oracle
6400 oracle 7u REG
8,3 0 174533
/u01/app/oracle/product/10.2/db_1/dbs/lkinstora10gr2
(deleted)
oracle 6400 oracle 8w
REG 8,3 110983 343618
/u01/app/oracle/admin/ora10gr2/bdump/alert_ora10gr2.log
oracle
6400 oracle 9u REG
8,3 1544 174538
/u01/app/oracle/product/10.2/db_1/dbs/hc_ora10gr2.dat
oracle 6400
oracle 10r CHR
1,5
2777 /dev/zero
oracle 6400 oracle 11r
CHR
1,5
2777 /dev/zero
oracle 6400 oracle 12r
REG 8,3 849408 172673
/u01/app/oracle/product/10.2/db_1/rdbms/mesg/oraus.msb
oracle
6400 oracle 13u REG
8,3 1544 174538
/u01/app/oracle/product/10.2/db_1/dbs/hc_ora10gr2.dat
oracle 6400
oracle 14uR REG
8,3 24 174539
/u01/app/oracle/product/10.2/db_1/dbs/lkORA10GR2
oracle 6400
oracle 15u REG
8,3 7356416 343496
/u01/app/oracle/oradata/orcl/control01.ctl
oracle 6400
oracle 16u REG
8,3 7356416 343497
/u01/app/oracle/oradata/orcl/control02.ctl
oracle 6400
oracle 17u REG
8,3 7356416 343498
/u01/app/oracle/oradata/orcl/control03.ctl
oracle 6400
oracle 18uW REG 8,3
513810432 343490
/u01/app/oracle/oradata/orcl/system01.dbf
oracle 6400
oracle 19uW REG 8,3
183508992 343492
/u01/app/oracle/oradata/orcl/undotbs01.dbf
oracle 6400
oracle 20uW REG 8,3
251666432 343491
/u01/app/oracle/oradata/orcl/sysaux01.dbf
oracle 6400
oracle 21uW REG 8,3 2111578112
343493 /u01/app/oracle/oradata/orcl/users01.dbf
oracle 6400
oracle 22uW REG 8,3
31465472 343510
/u01/app/oracle/oradata/orcl/temp01.dbf
oracle 6400
oracle 23r REG
8,3 849408 172673
/u01/app/oracle/product/10.2/db_1/rdbms/mesg/oraus.msb
oracle
6400 oracle 24uW REG 8,3
10493952 571688 /home/oracle/ziyoo_test01.dbf (deleted)
--
信号量信息
ZIYOO@ora10gr2>! ls -ltar /proc/6400/fd/
total
25
dr-xr-xr-x 5 oracle oinstall 0 Jan 29 02:49
..
dr-x------ 2 oracle oinstall 0 Jan 29 02:59
.
lr-x------ 1 oracle oinstall 64 Jan 29 02:59 0 ->
/dev/null
lr-x------ 1 oracle oinstall 64 Jan 29 02:59 1 ->
/dev/null
lr-x------ 1 oracle oinstall 64 Jan 29 02:59 3 ->
/dev/null
lr-x------ 1 oracle oinstall 64 Jan 29 02:59 2 ->
/dev/null
l-wx------ 1 oracle oinstall 64 Jan 29 02:59 5 ->
/u01/app/oracle/admin/ora10gr2/udump/ora10gr2_ora_6389.trc
lr-x------
1 oracle oinstall 64 Jan 29 02:59 4 -> /dev/null
l-wx------ 1
oracle oinstall 64 Jan 29 02:59 6 ->
/u01/app/oracle/admin/ora10gr2/bdump/alert_ora10gr2.log
l-wx------
1 oracle oinstall 64 Jan 29 02:59 8 ->
/u01/app/oracle/admin/ora10gr2/bdump/alert_ora10gr2.log
lrwx------
1 oracle oinstall 64 Jan 29 02:59 7 ->
/u01/app/oracle/product/10.2/db_1/dbs/lkinstora10gr2
(deleted)
lrwx------ 1 oracle oinstall 64 Jan 29 02:59 9 ->
/u01/app/oracle/product/10.2/db_1/dbs/hc_ora10gr2.dat
lr-x------
1 oracle oinstall 64 Jan 29 02:59 10 -> /dev/zero
lr-x------ 1
oracle oinstall 64 Jan 29 02:59 12 ->
/u01/app/oracle/product/10.2/db_1/rdbms/mesg/oraus.msb
lr-x------
1 oracle oinstall 64 Jan 29 02:59 11 -> /dev/zero
lrwx------ 1
oracle oinstall 64 Jan 29 02:59 15 ->
/u01/app/oracle/oradata/orcl/control01.ctl
lrwx------ 1 oracle
oinstall 64 Jan 29 02:59 14 ->
/u01/app/oracle/product/10.2/db_1/dbs/lkORA10GR2
lrwx------ 1
oracle oinstall 64 Jan 29 02:59 13 ->
/u01/app/oracle/product/10.2/db_1/dbs/hc_ora10gr2.dat
lrwx------
1 oracle oinstall 64 Jan 29 02:59 17 ->
/u01/app/oracle/oradata/orcl/control03.ctl
lrwx------ 1 oracle
oinstall 64 Jan 29 02:59 16 ->
/u01/app/oracle/oradata/orcl/control02.ctl
lrwx------ 1 oracle
oinstall 64 Jan 29 02:59 19 ->
/u01/app/oracle/oradata/orcl/undotbs01.dbf
lrwx------ 1 oracle
oinstall 64 Jan 29 02:59 18 ->
/u01/app/oracle/oradata/orcl/system01.dbf
lrwx------ 1 oracle
oinstall 64 Jan 29 02:59 21 ->
/u01/app/oracle/oradata/orcl/users01.dbf
lrwx------ 1 oracle
oinstall 64 Jan 29 02:59 20 ->
/u01/app/oracle/oradata/orcl/sysaux01.dbf
lr-x------ 1 oracle
oinstall 64 Jan 29 02:59 23 ->
/u01/app/oracle/product/10.2/db_1/rdbms/mesg/oraus.msb
lrwx------
1 oracle oinstall 64 Jan 29 02:59 22 ->
/u01/app/oracle/oradata/orcl/temp01.dbf
lrwx------ 1 oracle
oinstall 64 Jan 29 02:59 24 -> /home/oracle/ziyoo_test01.dbf
(deleted)
ZIYOO@ora10gr2>exit
Disconnected from Oracle
Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With
the Partitioning, OLAP, Data Mining and Real Application Testing
options
oracle>/home/oracle$cd
/proc/6400/fd/
oracle>/proc/6400/fd$ls
0 1 10
11 12 13 14 15 16 17 18
19 2 20 21 22 23 24 3
4 5 6 7 8
9
--读取数据
oracle>/proc/6400/fd$cat 24 >
~/ziyoo01.dbf
oracle>/proc/6400/fd$ls -l /home/oracle/
total
45888
-rw-r--r-- 1 oracle oinstall
711 Jan 26 04:35 afiedt.buf
drwxr-xr-x 2 oracle
oinstall 4096 Oct 18 07:22
Desktop
-rwxr-xr-x 1 oracle oinstall 5742
Jan 14 02:34 netca.rsp
-rw-r--r-- 1 oracle oinstall 8591630
Jan 2 11:30 oracle.txt
-rw-r--r-- 1 oracle oinstall
27337709 Jan 26 02:47 patch.log
-rw-r--r-- 1 oracle
oinstall 178473 Feb 26 2008
README.html
drwxrwxr-x 8 500
dba 4096 Oct 18
11:18 rlwrap-0.37
-rw-r--r-- 1 oracle oinstall 251438
Oct 18 11:16 rlwrap-0.37.tar.gz
-rw-r--r-- 1 oracle
oinstall 22172 Jan 14 03:25
test_clob.txt
-rw-r--r-- 1 oracle
oinstall 5239 Jan 25 23:46
upgrade_info.log
-rw-r--r-- 1 oracle oinstall 10493952 Jan 29
03:02 ziyoo01.dbf
oracle>/proc/6400/fd$sqlplus / as sysdba
SQL*Plus: Release 10.2.0.4.0 - Production on Wed Jan 29 03:02:37
2014
Copyright (c) 1982, 2007, Oracle. All Rights
Reserved.
Connected to:
Oracle Database 10g Enterprise
Edition Release 10.2.0.4.0 - Production
With the Partitioning, OLAP,
Data Mining and Real Application Testing
options
SYS@ora10gr2>alter database datafile
‘/home/oracle/ziyoo_test01.dbf‘ offline ;
Database
altered.
-- 更新控制文件信息
SYS@ora10gr2>alter database rename file
‘/home/oracle/ziyoo_test01.dbf‘ to ‘/home/oracle/ziyoo01.dbf‘
;
Database altered.
SYS@ora10gr2>alter database datafile
‘/home/oracle/ziyoo01.dbf‘ online ;
alter database datafile
‘/home/oracle/ziyoo01.dbf‘ online
*
ERROR at line 1:
ORA-01113:
file 5 needs media recovery
ORA-01110: data file 5:
‘/home/oracle/ziyoo01.dbf‘
SYS@ora10gr2>recover datafile 5
;
Media recovery complete.
SYS@ora10gr2>alter database datafile 5
online ;
Database altered.
SYS@ora10gr2>conn
ziyoo
Enter password:
Connected.
ZIYOO@ora10gr2>select * from
tab
;
TNAME
TABTYPE
------------------------------------------------------------
--------------
CLUSTERID
----------
TEST_ZIYOO
TABLE
--查询恢复后的数据
ZIYOO@ora10gr2>select * from test_ziyoo
;
NAME
--------------------------------------------------------------------------------
Love
you foreve,my baby,Happy new Year!
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