470 1 0 13:50 00:00:02 ora_dbw0_ora10g
root 4012 3825 0 15:15 pts/3 00:00:00 grep ora_dbw
[root@ora10g fd]# chown oracle.oinstall /u01/ -R
[root@ora10g fd]# cd /proc/3470
-bash: cd: /proc/3470: No such file or directory
[root@ora10g fd]# ps -ef | grep ora_dbw
root 4026 3825 0 15:18 pts/3 00:00:00 grep ora_dbw
[root@ora10g fd]# ps -ef | grep ora_
root 4036 3825 0 15:22 pts/3 00:00:00 grep ora_
[root@ora10g fd]#
--再次查看fd目录下得文件状态 [oracle@ora10g fd]$ ls -ltr
total 0
lr-x------ 1 oracle oinstall 64 Aug 25 12:51 0 -> /dev/null
l-wx------ 1 oracle oinstall 64 Aug 25 12:51 6 -> /u01/app/oracle/admin/ora10g/bdump/alert_ora10g.log
l-wx------ 1 oracle oinstall 64 Aug 25 12:51 5 -> /u01/app/oracle/admin/ora10g/udump/ora10g_ora_2904.trc
lr-x------ 1 oracle oinstall 64 Aug 25 12:51 4 -> /dev/null
lr-x------ 1 oracle oinstall 64 Aug 25 12:51 3 -> /dev/null
lr-x------ 1 oracle oinstall 64 Aug 25 12:51 2 -> /dev/null
lr-x------ 1 oracle oinstall 64 Aug 25 12:51 1 -> /dev/null
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 9 -> /u01/app/oracle/product/10.2.0/db_1/dbs/hc_ora10g.dat
l-wx------ 1 oracle oinstall 64 Aug 25 12:51 8 -> /u01/app/oracle/admin/ora10g/bdump/alert_ora10g.log
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 7 -> /u01/app/oracle/product/10.2.0/db_1/dbs/lkinstora10g (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 23 -> /u01/app/oracle/oradata/ora10g/temp01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 22 -> /u01/app/oracle/oradata/ora10g/example01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 21 -> /u01/app/oracle/oradata/ora10g/users01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 20 -> /u01/app/oracle/oradata/ora10g/sysaux01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 19 -> /u01/app/oracle/oradata/ora10g/undotbs01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 18 -> /u01/app/oracle/oradata/ora10g/system01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 17 -> /u01/app/oracle/oradata/ora10g/control03.ctl (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 16 -> /u01/app/oracle/oradata/ora10g/control02.ctl (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 15 -> /u01/app/oracle/oradata/ora10g/control01.ctl (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 14 -> /u01/app/oracle/product/10.2.0/db_1/dbs/lkORA10G
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 13 -> /u01/app/oracle/product/10.2.0/db_1/dbs/hc_ora10g.dat
lr-x------ 1 oracle oinstall 64 Aug 25 12:51 12 -> /dev/zero
lr-x------ 1 oracle oinstall 64 Aug 25 12:51 11 -> /dev/zero
lrwx------ 1 oracle oinstall 64 Aug 25 12:51 10 -> /u01/app/oracle/admin/ora10g/adump/ora_2904.aud
对文件进行恢复以后，直接查询fd目录下的文件状态，依然可以看到是(deleted)的，但是没关系，实际上文件已经恢复成功了
--开启另一个session查看文件是否已经恢复
[root@ora10g ~]# su - oracle
[oracle@ora10g ~]$ cd /u01/app/oracle/oradata/ora10g
[oracle@ora10g ora10g]$ ll
total 914656
-rw-r----- 1 oracle oinstall 7061504 Aug 25 13:03 control01.ctl
-rw-r----- 1 oracle oinstall 7061504 Aug 25 13:03 control02.ctl
-rw-r----- 1 oracle oinstall 7061504 Aug 25 13:03 control03.ctl
-rw-r----- 1 oracle oinstall 104865792 Aug 25 13:00 example01.dbf
-rw-r----- 1 oracle oinstall 251666432 Aug 25 13:01 sysaux01.dbf
-rw-r----- 1 oracle oinstall 503324672 Aug 25 13:02 system01.dbf
-rw-r----- 1 oracle oinstall 20979712 Aug 25 12:59 temp01.dbf
-rw-r----- 1 oracle oinstall 31465472 Aug 25 13:01 undotbs01.dbf
-r |