However, most businesses have some workloads that can be interrupted and are not time-sensitive. Spot Instances are not great for customer-facing, time-sensitive use cases, or for applications that can’t be interrupted - like an e-commerce website. If someone else requests to use those instances, you’ll be disconnected after a two-minute warning. The catch is that you don’t actually reserve them. They are offered at a deep discount of up to 90% off the On-Demand EC2 prices. Spot Instances allow you to take advantage of Amazon’s ‘extra’ capacity. If your needs change, Standard RIs can be resold on the AWS RI Marketplace or Convertible RIs can be exchanged for RIs of a comparable value but cannot be resold. Managed Service Providers may find RI purchasing to be the most economical option for increasing profits while adding value for their customers. In return for that long-term commitment, AWS gives a hefty discount of up to 72% off compared to the On-Demand prices. When you buy an RI, you are “reserving” that instance for a one or three-year period. Reserved Instance (RI) purchases are one of the easiest ways to start reducing cloud spends. If you’re running an EC2 workload at scale, managing all of your instance provisioning on an On-Demand basis would get quite expensive. On-Demand EC2 Instance purchasing is also the most expensive way to provision resources. This is the most basic, least complicated way to provision Amazon EC2 Instances. Amazon also offers the additional option of Amazon EC2 Dedicated Hosts. They are On-Demand Instances, Reserved Instances, Spot Instances, and Savings Plans. Yet regardless of what type of instance you’re using, you’ll have the same purchase options.ĪWS provides four main options to purchase Amazon EC2 Instances. The instance types that you purchase depend on the type of computing power you need. Within each of these categories, there are further options made up of different combinations of memory, networking capacity, storage, and CPU. Storage optimized, designed around AWS storage options with high, sequential read/write access to very large datasets and optimized for low-latency.Accelerated computing, best suited for machine learning training, deep learning, graphics processing, and other intensive computing tasks. Memory optimized to process large datasets in memory. Compute optimized, which are well suited for batch processing workloads and high performance computing, gaming, and web servers.General purpose for diverse workloads, with burstable performance available.Amazon offers EC2 Instance types based on use case: Part of running workloads at scale involves ensuring that you’re choosing the right type of instance, not just the proper instance size, for your application. Today, there are hundreds of EC2 Instance types and sizes available, and the list is always growing. Since then, AWS has been adding new instance types and sizes. AWS enables users to purchase and control their EC2 computing resources within their web-based interface.ĮC2 Instances launched in 2007 with one instance type. What Are Amazon Web Services (AWS) EC2 Instances?Īccording to AWS, Amazon EC2 is “secure and resizable compute capacity for virtually any workload” allowing businesses to “access reliable, scalable infrastructure on demand.” In other words, the computing you do in AWS will be powered by some type of EC2 Instance. In this post, we take a deep dive into Amazon Elastic Compute Cloud (EC2) instances: what Amazon EC2 Instances are, how you can purchase Amazon EC2 Instances, and which ways you can optimize and manage your Amazon EC2 workloads. If your cloud operations take place on Amazon Web Services (AWS), then instances are the building blocks of your computing capabilities. How to Purchase, Optimize, and Manage AWS EC2 Workloads at Scale
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