Unmounting a file system
Unmount a file system when it needs to be removed from service. From a client point of view, it simply disappears. This will not harm the file system, nor affect any of the data in it.
NoteYou do not need to unmount a file system before shutting down or restarting a server or cluster. If a file system was mounted when the server or cluster was shut down or restarted, the file system will automatically be mounted when the server or cluster is restarted.
You can use the NAS Manager to unmount a file system.
Procedure
Navigate to to display a list of all file systems.
Select the check box next to the label of the file system to be unmounted.
If the file system is mounted, click unmount.
Click OK.