One of the popular instance types supported by Amazon EC2 is the Micro Instance. In November 2010, Amazon announced the free tier and started offering 750 hours of Micro Instance usage free per month for the first one year. Initially this offer was available only to Amazon Linux instances but last month AWS announced that they are extending this to Microsoft Windows Server instances.
Looking at the technical specifications, the Micro Instance type doesn’t have the muscle required for heavy lifting. It comes with burst CPU capacity that can go up to 2 Elastic Compute Units (ECU). That means the CPU performance is not predictable. The main memory offered is 613MB! This is just not sufficient for running any serious workloads. Of course, storage can be added through EBS and the free tier covers up to 30GB of storage.
But it doesn’t mean Micro Instances are totally useless. They offer excellent value in certain scenarios. In this article, I want to share how to get the best out of the Amazon EC2 Micro Instances and the dos and don’ts of using them.
