Recently, Amazon announced new instance types for RDS.
Currently, we are running db.m1.large, and it looks like the new db.m3.large is comparable but cheaper.
Before moving these over, I wanted to double check with you guys that there are no hidden "gotchas" I'm not seeing. Are there any reasons not to move our instances to the new, cheaper, faster instance type?
Best Answer
The only real cons I can see are:
And that's it. In return for these cons, you receive faster CPUs and lower prices.
I have already moved a standard m1.large instance running CentOS+MySQL slave (i.e. an EC2 instance, not an RDS instance) to an m3.large. The idle CPU floor dropped from around 6-7% to 1.5-2%, and peak loads are reduced from around 85-90% to 45-50%, simply by relaunching as an m3.large.