How to Create an AWS EC2 Spot Instance | Amazon Web Services
An EC2 instance is a virtual server in Amazon Web Services (AWS) that provides resizable compute capacity in the cloud. It acts like a traditional server—running your operating system, applications, and storing temporary data—but it's hosted in Amazon's data centers. EC2 stands for Elastic Compute Cloud, with “elastic” referring to the ability to scale resources up or down based on demand.
When you launch an EC2 instance, you're essentially renting virtual hardware. But how you pay for that hardware depends on the purchase option you choose. This is where Spot Instances come in.
A Spot Instance is an EC2 instance that uses spare Amazon compute capacity. AWS sells unused server time at significantly lower prices—sometimes up to 90% cheaper than On-Demand instances. These savings make Spot Instances ideal for cost-sensitive tasks that can handle interruption, like data analysis, testing, large-scale simulations, machine learning training, rendering, and batch processing.
However, there's a catch. Spot Instances can be interrupted with little notice when AWS needs the capacity back. If your application can handle being paused or restarted, Spot Instances offer a way to get immense computing power for a fraction of the cost.
To create a Spot Instance, you use the same EC2 launch process as a regular instance, but select the "Request Spot Instances" option. You can also use Auto Scaling groups with mixed instance types and pricing options to maintain flexibility and availability. Spot Fleet and EC2 Fleet features also let you automate cost-efficient instance purchasing strategies across instance types and Availability Zones.
Now, let’s compare the main EC2 purchase options:
On-Demand Instances are the default choice. You pay by the second (or hour, for older instance types) with no long-term commitment. They’re flexible and reliable, ideal for short-term, unpredictable workloads. But they’re the most expensive per hour.
Reserved Instances offer a significant discount in exchange for committing to use a specific instance type for one or three years. They’re great for predictable workloads running continuously, like databases or backend services.
Savings Plans are flexible pricing models where you commit to a consistent amount of usage (e.g., $50 per hour) over 1 or 3 years. They apply discounts to any usage that fits, regardless of instance type or region, offering similar savings to Reserved Instances but with more flexibility.
Spot Instances, in contrast, offer the biggest savings with the least reliability. You don’t reserve capacity—you bid for unused instances. When AWS needs those resources back or the market price exceeds your bid, your instance may be terminated.
In summary, EC2 Instances are foundational to running workloads on AWS. Spot Instances are powerful cost-saving tools, especially for flexible, interruptible workloads. The trade-off is reliability versus cost, and knowing when to use each type—On-Demand, Reserved, or Spot—is essential to optimizing performance and budget in the cloud.
Видео How to Create an AWS EC2 Spot Instance | Amazon Web Services канала Cameron McKenzie
When you launch an EC2 instance, you're essentially renting virtual hardware. But how you pay for that hardware depends on the purchase option you choose. This is where Spot Instances come in.
A Spot Instance is an EC2 instance that uses spare Amazon compute capacity. AWS sells unused server time at significantly lower prices—sometimes up to 90% cheaper than On-Demand instances. These savings make Spot Instances ideal for cost-sensitive tasks that can handle interruption, like data analysis, testing, large-scale simulations, machine learning training, rendering, and batch processing.
However, there's a catch. Spot Instances can be interrupted with little notice when AWS needs the capacity back. If your application can handle being paused or restarted, Spot Instances offer a way to get immense computing power for a fraction of the cost.
To create a Spot Instance, you use the same EC2 launch process as a regular instance, but select the "Request Spot Instances" option. You can also use Auto Scaling groups with mixed instance types and pricing options to maintain flexibility and availability. Spot Fleet and EC2 Fleet features also let you automate cost-efficient instance purchasing strategies across instance types and Availability Zones.
Now, let’s compare the main EC2 purchase options:
On-Demand Instances are the default choice. You pay by the second (or hour, for older instance types) with no long-term commitment. They’re flexible and reliable, ideal for short-term, unpredictable workloads. But they’re the most expensive per hour.
Reserved Instances offer a significant discount in exchange for committing to use a specific instance type for one or three years. They’re great for predictable workloads running continuously, like databases or backend services.
Savings Plans are flexible pricing models where you commit to a consistent amount of usage (e.g., $50 per hour) over 1 or 3 years. They apply discounts to any usage that fits, regardless of instance type or region, offering similar savings to Reserved Instances but with more flexibility.
Spot Instances, in contrast, offer the biggest savings with the least reliability. You don’t reserve capacity—you bid for unused instances. When AWS needs those resources back or the market price exceeds your bid, your instance may be terminated.
In summary, EC2 Instances are foundational to running workloads on AWS. Spot Instances are powerful cost-saving tools, especially for flexible, interruptible workloads. The trade-off is reliability versus cost, and knowing when to use each type—On-Demand, Reserved, or Spot—is essential to optimizing performance and budget in the cloud.
Видео How to Create an AWS EC2 Spot Instance | Amazon Web Services канала Cameron McKenzie
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