title: How to use a disk amoung two VM instances in Google Cloud Platform
body: <p>I want to configure one instance, and be able to create other instances with this setup (or eventually have a load balancer do it). From what I understand, to do this I have to create an Image from a Disk.</p>
  
  <p>So I do the following: Side menu -> Compute Engine -> Disks and create a 10GB disk and name it DISK01</p>
  
  <p>Then I create a new VM instance and attach this disk onto that instance (instead of creating a new disk which is the default). I SSH into the instance and install all the software I want the instance(s) to have.</p>
  
  <p>If I create another VM instance and also attach DISK01, what's the expected behavior? Will both instances be able to access the <em>same</em> disk, or is a copy made for the new instance?</p>