How do I move storage to a new volume on AWS

I am using the pre-configured setup of Owncloud on AWS by Sain3. When the instance was setup it only created an eight GB partition. It looks like I only have 4 GB of available storage in Owncloud. I can add another volume to the instance in AWS, but how do I move or redirect owncloud to use this new volume?

Can you delete this post. I'm not sure what I was thinking. I am just expanding the drive in AWS.