• 问题现象:

SQL> startup

ORACLE instance started.

Total System Global Area 1854021632 bytes

Fixed Size                      2242584 bytes

Variable Size             1136658408 bytes

Database Buffers       708837376 bytes

Redo Buffers                 6283264 bytes

ORA-00205: error in identifying control file, check alert log for more info

查看alert日志

SQL> select value from v$diag_info where name ='Diag Alert';

VALUE

-------------------------------------------------------------------------------

/data/oracle/ora11g/diag/rdbms/tjdb/tjdb/alert

[oracle@hrtestdb ~]cd /data/oracle/ora11g/diag/rdbms/tjdb/tjdb/alert

[oracle@hrtestdb alert]# ll
?荤.?.102508
-rw-r-----. 1 oracle oinstall 10485978 12?.30 2014 log_16.xml
-rw-r-----. 1 oracle oinstall 10485945 1?. 25 2015 log_17.xml
-rw-r-----. 1 oracle oinstall 10485763 2?. 13 2015 log_18.xml
-rw-r-----. 1 oracle oinstall 10485996 3?.  8 2015 log_19.xml
-rw-r-----. 1 oracle oinstall 10485761 3?. 21 2015 log_20.xml
-rw-r-----. 1 oracle oinstall 10485841 4?.  3 2015 log_21.xml
-rw-r-----. 1 oracle oinstall 10485932 4?. 15 2015 log_22.xml
-rw-r-----. 1 oracle oinstall 10485792 7?.  4 17:42 log_23.xml
-rw-r-----. 1 oracle oinstall 10485970 7?.  4 23:41 log_24.xml
-rw-r-----. 1 oracle oinstall 10392897 10?.21 09:20 log.xml
[oracle@hrtestdb alert]# less log.xml

Alert 日志片断:

host_id='hrtestdb' host_addr='10.3.64.204' module=''
 pid='7210'>
 <txt>ORA-00210: cannot open the specified control file
ORA-00202: control file: &apos;/data/oracle/ora11g/oradata/tjdb/control03.ctl&apos;
ORA-27086: unable to lock file - already in use
Linux-x86_64 Error: 11: Resource temporarily unavailable

解决:

1.先使用lsof 或fuser 查询出正在使用这些文件的进程:

[root@hrtestdb ~]#fuser -m -v /data

[root@hrtestdb ~]# lsof /data/oracle/ora11g/oradata/tjdb/control*
COMMAND  PID   USER   FD   TYPE DEVICE SIZE/OFF    NODE NAME
oracle  8041 oracle  256u   REG   0,19 11026432 1867986 /data/oracle/ora11g/oradata/tjdb/control01.ctl
oracle  8041 oracle  257u   REG   0,19 11026432 1868772 /data/oracle/ora11g/oradata/tjdb/control02.ctl
oracle  8041 oracle  258u   REG   0,19 11026432 1868514 /data/oracle/ora11g/oradata/tjdb/control03.ctl
oracle  8043 oracle  256u   REG   0,19 11026432 1867986 /data/oracle/ora11g/oradata/tjdb/control01.ctl
oracle  8043 oracle  257u   REG   0,19 11026432 1868772 /data/oracle/ora11g/oradata/tjdb/control02.ctl
oracle  8043 oracle  258u   REG   0,19 11026432 1868514 /data/oracle/ora11g/oradata/tjdb/control03.ctl
oracle  8045 oracle  256uW  REG   0,19 11026432 1867986 /data/oracle/ora11g/oradata/tjdb/control01.ctl
oracle  8045 oracle  257uW  REG   0,19 11026432 1868772 /data/oracle/ora11g/oradata/tjdb/control02.ctl
oracle  8045 oracle  258uW  REG   0,19 11026432 1868514 /data/oracle/ora11g/oradata/tjdb/control03.ctl
oracle  8051 oracle  258u   REG   0,19 11026432 1867986 /data/oracle/ora11g/oradata/tjdb/control01.ctl
oracle  8051 oracle  259u   REG   0,19 11026432 1868772 /data/oracle/ora11g/oradata/tjdb/control02.ctl
oracle  8051 oracle  260u   REG   0,19 11026432 1868514 /data/oracle/ora11g/oradata/tjdb/control03.ctl
oracle  8278 oracle  257u   REG   0,19 11026432 1867986 /data/oracle/ora11g/oradata/tjdb/control01.ctl
oracle  8278 oracle  258u   REG   0,19 11026432 1868772 /data/oracle/ora11g/oradata/tjdb/control02.ctl
oracle  8278 oracle  259u   REG   0,19 11026432 1868514 /data/oracle/ora11g/oradata/tjdb/control03.ctl

[root@hrtestdb ~]# ps -ef | grep /data/oracle |grep -v grep |cut -c 9-15 |xargs kill -s 9

[root@hrtestdb ~]# lsof /data |cut -c 9-13 |xargs kill -s 9

[root@hrtestdb ~]# fuser –k  /data

2.卸载文件系统

[root@hrtestdb ~]#umount  /data

3.重新装载文件系统

mount nfs目录的方法:
mount -t nfs hostname(orIP):/directory /mount/point

[oracle@hrtestdb ~]# df -h
/dev/mapper/VolGroup-lv_root   18G      4.4G   13G     27%     /
tmpfs                           1.9G    1.8G    140M  93%     /dev/shm
/dev/sda1                                  485M   37M    423M   8%     /boot
10.5.6.250:/nfs/hrtestdb            178G    74G     95G    44%   /data

[root@hrtestdb ~]#mount -t nfs -o nolock 10.5.6.250:/nfs/hrtestdb  /data

  • 自动挂载存储

1.在/etc/fstab 添加自动挂载,如下配置格式

# <file system> <mount point> <type> <options> <dump> <pass>

[root@hrtestdb etc]# vi fstab

#
# /etc/fstab
# Created by anaconda on Mon Jan 20 09:49:11 2014
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/VolGroup-lv_root / ext4 defaults 1 1
UUID=90bc6e34-39f4-45b1-a68b-8c5ecc81d7e0 /boot ext4 defaults 1 2
/dev/mapper/VolGroup-lv_swap swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
10.5.6.250:/nfs/hrtestdb /data nfs defaults 0 0

自动挂载存储

或:

添加到   /etc/rc.d/rc.local

  2.把mount 的命令放到/etc/rc.d/rc.local 里面去,vi /etc/rc.d/rc.local ,然后在rc.local 中配置挂载命令:
    mount -t nfs -o nolock 10.5.6.250:/nfs/hrtestdb  /data

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