Jesse Perry's picture

If using AWS, you can increase the space in this way:

1. Snapshot volume
2. Make volume from snapshot with desired size
3. Detach original volume
4. Attach new volume

Of course there are some intermediate steps, and some gotchas in there, but that is the basic principle.

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumes.html