Upgrading and Downgrading Plans
Upgrading or downgrading plans is a pretty simple affair. Firstly - decide which plan you want to switch to. Then, inform Heroku that you want to use a different plan either through their web interface, or via the command line:
heroku addons:upgrade flying_sphinx:granite heroku addons:downgrade flying_sphinx:ceramic
However, Flying Sphinx currently does not migrate any data across between plans — so you'll want to get your new plan set up quickly, then restart your app so it's aware of the connection changes. This is done in two simple lines:
heroku rake fs:rebuild heroku restart
And from there you're good to go!