w-r----- 1 oracle oinstall 5251072 Aug 25 13:00 users01.dbf
[oracle@ora10g ora10g]$ pwd
/u01/app/oracle/oradata/ora10g
[oracle@ora10g ora10g]$
--恢复在线日志文件
[oracle@ora10g fd]$ ps -ef | grep ora_lgwr
oracle 2914 1 0 12:37 00:00:01 ora_lgwr_ora10g
oracle 3255 2999 0 13:09 pts/2 00:00:00 grep ora_lgwr
[oracle@ora10g fd]$ cd /proc/2914/fd
[oracle@ora10g fd]$ ls -ltr
total 0
lr-x------ 1 oracle oinstall 64 Aug 25 13:09 0 -> /dev/null
l-wx------ 1 oracle oinstall 64 Aug 25 13:09 5 -> /u01/app/oracle/admin/ora10g/udump/ora10g_ora_2904.trc
lr-x------ 1 oracle oinstall 64 Aug 25 13:09 4 -> /dev/null
lr-x------ 1 oracle oinstall 64 Aug 25 13:09 3 -> /dev/null
l-wx------ 1 oracle oinstall 64 Aug 25 13:09 2 -> /u01/app/oracle/admin/ora10g/bdump/ora10g_lgwr_2914.trc
lr-x------ 1 oracle oinstall 64 Aug 25 13:09 1 -> /dev/null
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 9 -> /u01/app/oracle/product/10.2.0/db_1/dbs/hc_ora10g.dat
l-wx------ 1 oracle oinstall 64 Aug 25 13:09 8 -> /u01/app/oracle/admin/ora10g/bdump/alert_ora10g.log
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 7 -> /u01/app/oracle/product/10.2.0/db_1/dbs/lkinstora10g (deleted)
l-wx------ 1 oracle oinstall 64 Aug 25 13:09 6 -> /u01/app/oracle/admin/ora10g/bdump/alert_ora10g.log
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 26 -> /u01/app/oracle/oradata/ora10g/temp01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 25 -> /u01/app/oracle/oradata/ora10g/example01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 24 -> /u01/app/oracle/oradata/ora10g/users01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 23 -> /u01/app/oracle/oradata/ora10g/sysaux01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 22 -> /u01/app/oracle/oradata/ora10g/undotbs01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 21 -> /u01/app/oracle/oradata/ora10g/system01.dbf (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 20 -> /u01/app/oracle/oradata/ora10g/redo03.log (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 19 -> /u01/app/oracle/oradata/ora10g/redo02.log (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 18 -> /u01/app/oracle/oradata/ora10g/redo01.log (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 17 -> /u01/app/oracle/oradata/ora10g/control03.ctl (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 16 -> /u01/app/oracle/oradata/ora10g/control02.ctl (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 15 -> /u01/app/oracle/oradata/ora10g/control01.ctl (deleted)
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 14 -> /u01/app/oracle/product/10.2.0/db_1/dbs/lkORA10G
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 13 -> /u01/app/oracle/product/10.2.0/db_1/dbs/hc_ora10g.dat
lr-x------ 1 oracle oinstall 64 Aug 25 13:09 12 -> /dev/zero
lr-x------ 1 oracle oinstall 64 Aug 25 13:09 11 -> /dev/zero
lrwx------ 1 oracle oinstall 64 Aug 25 13:09 10 -> /u01/app/oracle/admin/ora10g/adump/ora_2904.aud
[oracle@ora10g fd]$
可以看到，根据ora_lgwr进程找到的/proc/2914/fd目录下，也有刚才恢复过得数据文件句柄，但句柄的编号，和刚才在/proc/2912/fd下面是不一致的，这也就说明，这些进程在运行的时候，各自有各自的文件句柄编号，互不影响，由于刚才已经对数据文件和控制文件进行了恢复，此时，只需要再对online redo logfile进行恢复即可
--开始恢复online redo logfile
[oracle@ora10g fd]$ cp 20 /u01/app/oracle/oradata/ora10g/redo03.log
[oracle@ora10g fd]$ cp 19 /u01/app/oracle/oradata/ora10g/redo02.log
[oracle@ora10g fd]$ cp 18 /u01/app/oracle/oradata/or |