I currently have a m3.medium as production PostgreSQL server but I want to move it to RDS with the Multi-AZ feature.
Since the CPU usage of our current server is never higher than 5% and the RAM usage is 500MB I was considering using a cheaper instance like the t2.small on RDS. On a few online forums and on Amazon help pages they don't recommend the small instances for a production database. Is this just marketing or are there some real technical issues that may come up?
The only difference I found between the t2 and m3 instance types is the burstable CPU but since our DB server doesn't use any CPU I wonder what the other dangers are.