This way if you are scared of scarce capacities in a specific location, you can use reserved instances to mitigate this risk. Unlike on demand instances, RIs grant you capacity reservation in a specific Availability Zone. Thus, RIs are very suitable for production applications with predictable workloads and high availability requirements. When you purchase Reserved instances, you have a long-term commitment (1 to 3 years). The advantage is a very significant discount (up to 75%) compared to On-demand instance pricing. The on-demand prices for the same instance in the EU (Ireland) region look like this:Ī very well know practice in the AWS community is to reserved instances (RIs). This purchase model is very suitable for short term applications or for unpredictable applications where traffic peaks are hard to forecast.įor example, the on-demand prices for an m5.large instance in the US West (Oregon) region look like this: The billing on demand is made for greater flexibility as you can decide to scale or decrease capacity instantaneously and pay the specified hourly rates for the instance you use.Īs explained earlier you can choose between the wide catalogue of instance types and even make adjustments to configure something very specific to your need. There is no commitment, it’s a « contract » that you can revoke at any time. Storage Optimized: Convenient for tasks that require huge storage capacityīasically it’s “pay for what you use” depending on which instances you run with no long terms or upfront payment.Accelerated Computing: If you need additional computing power, you can use dedicated resources such as GPUs, FPGAs Ex: Ethereum mining or machine learning.Memory Optimized: Good for anything that needs memory-intensive applications, such as real-time big data analytics or Hadoop/Spark clusters.Compute Optimized: Good for compute-intensive applications such as scientific modeling or high-performance web servers.They are a good way to start when beginning on AWS General Purpose: The most popular used for web servers, development environments, etc.Instance types comprise varying combinations of CPU, memory, storage, deployed region and networking capacity enabling the appropriate mix of resources to satisfy customers applications. Let’s dive deeper into the topic: Categories and Type of instances:ĪWS offers different EC2 instances types optimized for various purposes. This is the main reason why we released our cloud calculator to help you find the best deals. Actually, with CPU, storage, network, regions, OS and pricing model, there are limitless possible configurations implying different costs! In other words, it has become not humanly possible to select the best options.Īt Holori we are fully aware of this complexity. Paradoxically the EC2 flexibility has created complexities for users to configure their servers and forecast costs. The main advantage of EC2 is the flexibility as users can scale or resize capacity within minutes and choose from a large variety of options: processor, storage, networking, operating system, deployed regions and purchase model. Amazon EC2 is a web-based service that allows you to securely rent computing power to run your applications. AWS EC2 (Amazon Elastic Compute Cloud) is the most famous product from AWS.
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