Linux NFS实战

209数据库服务器磁盘空间不够，想临时从另外一台服务器上借点空间，想到了用NFS共享文件。操作如下：

共享文件系统108：

--新建一个文件夹
[root@fina7-108 EAS70]# mkdir oradata

--检测下刚创建的文件夹
 

[root@fina7-108 EAS70]# ls
aa.txt            easdeploy.sh  kingdee70-2011-11-08.tar     kingdee70-bak     lost+found  tmp
backup            java.txt      kingdee70-2011-11-10         kingdee70.rar     net.png     upload
easdeploy.bak.sh  kingdee70     kingdee70-2011-11-14.tar.gz  kingdee70.tar.gz  oradata
[root@fina7-108 EAS70]# cd oradata/
[root@fina7-108 oradata]# pwd
/EAS70/oradata

--编辑 /etc/exports 文件，在文件末尾加上/EAS70/oradata 192.168.17.209(rw,no_root_squash)
 

[root@fina7-108 oradata]# vi /etc/exports
[root@fina7-108 oradata]# cat /etc/exports
/opt 192.168.17.182(rw,no_root_squash)
/EAS70/oradata 192.168.17.209(rw,no_root_squash)

[root@fina7-108 oradata]# /etc/rc.d/init.d/portmap start
Starting portmap:                                      [  OK  ]
[root@fina7-108 oradata]# service nfs restart
Shutting down NFS mountd:                              [FAILED]
Shutting down NFS daemon:                              [FAILED]
Shutting down NFS quotas:                              [FAILED]
Shutting down NFS services:                            [  OK  ]
Starting NFS services:                                 [  OK  ]
Starting NFS quotas:                                   [  OK  ]
Starting NFS daemon:                                   [  OK  ]
Starting NFS mountd:                                   [  OK  ]
[root@fina7-108 oradata]# showmount -a
All mount points on fina7-108:

--查看防火墙状态，如果没关闭就把他关了
 

[root@fina7-108 oradata]# service iptables status
Firewall is stopped.

--touch一个文件测试用
[root@fina7-108 oradata]# touch test.txt

 

客户机2.209：

 

[root@testmachine mnt]# cd /
[root@testmachine /]# cd oraData/
[root@testmachine oraData]# ls
dataDump  dipdb  erpdatafile  lost+found  oracle_single.tar.gz

--在该目录下创建一个 fin-data文件夹用于挂载NFS文件
 

[root@testmachine oraData]# mkdir fin-data
[root@testmachine oraData]# mount -t nfs 192.168.17.108:/EAS70/oradata /oraData/fin-data
[root@testmachine oraData]# vi /etc/fstab

添加一行：

LABEL=/oraData/fin-data /oraData/fin-data       ext3    defaults        1 2

 

[root@testmachine oraData]# df -h
文件系统              容量  已用 可用 已用% 挂载点
/dev/sda1             9.7G  6.6G  2.7G  71% /
/dev/sda8             3.0G  698M  2.1G  25% /var
/dev/sda7             3.9G  3.3G  467M  88% /usr
/dev/sda6             3.9G  3.7G   75M  99% /home
/dev/sda5             3.9G   73M  3.7G   2% /tmp
/dev/sda3             3.9G  2.8G  911M  76% /opt
/dev/sda9              19G   12G  6.5G  64% /oracle
/dev/sda10             94G   81G  8.5G  91% /backups
/dev/sda11            236G  185G   39G  83% /oraData
tmpfs                 7.9G     0  7.9G   0% /dev/shm
192.168.17.108:/EAS70/oradata
                      161G   70G   83G  46% /oraData/fin-data
[root@testmachine oraData]# cd /oraData/fin-data/
[root@testmachine fin-data]# ls
test.txt

OK，可以看到刚才创建的文件啦！