Cloud Computing: Demystifying AWS Spot Instances through three use cases

Grazed from CloudTech. Author: Sharon Wagner.

Around six years ago, Amazon introduced an EC2 usage option at very low costs: Spot Instances. With EC2 Spot Instances, you can save money, but there’s a catch - they won’t necessarily be available when you need or want to use them. Managing and strategising around such temperamental instances can be challenging, not to mention unsuitable for AWS customers who are looking to provide stable online end user experiences.

Amazon created this type of resource in order to optimise their data center utilisation by leveraging their data centre’s spare capacity. However, if a customer on a higher-priced on-demand, or reserved capacity plan requires an instance, Amazon will take it from the Spot Instance pool to provide it to the higher paying customer...

In this article, several use cases will be presented to show how this type of "unreliable" resource can be used to help effectiveness without putting your system at risk...

Read more from the source @ http://www.cloudcomputing-news.net/news/2015/aug/27/demystifying-aws-spot-instances-through-three-use-cases/