A few years ago, I moved a co-located site over to Amazon Web Services. This included web servers, data base servers, load balancers, etc. At the time I figured an ample 8GB would be sufficient space to house our modest Postgresql database. I was right… for a time.
Two years after the move, we started to run out of space due to miscellaneous file clutter: database dumps and log files grew. Clearing up this mess helped a bunch, but over time the database itself grew. Now it’s too large for the once spacious 8 gig.