To increase the size of your drive:
Open the ‘My Drives’ section of the web console
Open the drive detail window for the drive you wish to edit
Use the slider or the text box for the drive size to increase the disk size that you desire
Make sure you save your changes to the drive
Now power up the server the drive is mounted to
You will now need to re-partition your drive to adjust the file system for the larger drive size to make it usable space for the operating system you are using.