NFS Mounting on Linux

NFS mounting on Linux

Most often it is required to do a NFS mount of your disks across different servers. This particularly useful for doing Applications Installations and Patching. There are two aspects of configuration involved here. One is the sever that is the which is sharing the file system and the other is client which the host that is mounting the shared file system.

Supposing you want to mount a u01/hemanth on Node_A to Node_B

Configurations on Node_A
edit the /etc/exports file
vi /etc/exports
add the filesystem to mount
/u01/sam ro Node_B

you can either use the option ro which means read only or in case you wish to allow node_b to write into the filesystem use the rw option which is read writeable.

The change in exports file takes effect only after the restart of your NFS service daemon. use the service command to do that.

# service nfs restart
Shutting down NFS mountd: [ OK ]
Shutting down NFS daemon: [ OK ]
Shutting down NFS quotas: [ OK ]
Shutting down NFS services: [ OK ]
Starting NFS services: [ OK ]
Starting NFS quotas: [ OK ]
Starting NFS daemon: [ OK ]
Starting NFS mountd: [ OK ]

Configuration for Node_B
On Node_B simply create the mount point to hold the shared file system and mount it using the mount command.

#mkdir hemanth
#mount -t nfs Node_A:/u01/hemanth /hemanth