Reserved instances1/1/2024 ![]() The longer the term, the more discount you will receive.Īfter making all the above selections, proceed to the purchase page and complete your transaction. ![]() The following figure shows how to select the term and instance count. RIs support both Linux and Windows instances. The following figure shows how to select the instance type and operating system. We'll explain what this means later in this blog. In this example, we'll be selecting an RI in Singapore with the "Reserved" option. The following figure shows how to select a region. Let us have a look at the parameter selection window on the purchase page. How to Purchase RIs?įirst, visit the Reserved Instance console and navigate to the purchase page or simply visit the Reserved Instances page and click "Buy Now". Let's now take a look at how we can purchase RIs on Alibaba Cloud. Enhanced business agility through flexible billing options.Compute capacity reservation for business continuity.Increased savings on on-demand compute resources.Here are three key benefits of using RIs when designing your infrastructure: You may be wondering, why would your organization require Reserved Instances when you could just use Subscription instances along with Pay-as-you-Go ones? Instance Count: 2 instances in the preceding figure.Operating System: Linux in the preceding figure.Region and Zone: Singapore Zone C in the preceding figure.Instance Type: ecs.g5.2xlarge in the preceding figure.When purchasing Reserved Instances, and you need to consider 5 important aspects of your ECS instance, as shown in the following figure: So, let us see what an RI membership card looks like. ![]() Each membership card has specific attributes and can be used only when the attributes are matched. What Are Reserved Instances (RIs)?Īlibaba Cloud Reserved Instance is a reservation of resources and capacity, which can provide a capacity reservation when used in a specific Availability Zone and can offer significant discount ( up to 79%) compared with standard pricing.Īn RI is similar to a membership card or discount coupon on Alibaba Cloud. For a more detailed overview of RIs, visit the official documentation through this link. This blog article briefly introduces the concepts and features of RIs. Convertible RIs provide a smaller discount, but let you change the instance type during the contract.įor more information on Standard and Convertible Reserved Instances, see Types of Reserved Instances (offering classes).Alibaba Cloud has just launched the Reserved Instances (RIs) purchasing option for its renowned Elastic Compute Service (ECS), providing customers with a cost-effective purchasing option with higher flexibility.Standard RIs provide the largest discount for a specific instance type over a long-term contract.The size of the discount that you receive depends on whether you're using a standard RI or a convertible RI: Zonal RIs also provide substantial discounts over On-Demand Pricing.įor more information on the differences between zonal and Regional Reserved Instances, see Regional and zonal Reserved Instances (scope). Zonal Reserved Instances allow you to create a capacity reservation for an instance type within a specific Availability Zone.Regional RIs apply a discount to On-Demand Instances you run in a particular Region. Regional Reserved Instances provide a pricing discount that helps you save money.You receive discounts or capacity reservations depending on the RI that you choose: The Reserved Instance doesn't provide a discount until you launch an instance with the required specifications. Note: Because a Reserved Instance is a billing discount, it doesn't affect the running of any existing instances. Reserved Instances act as an automatic discount on new or existing On-Demand Instances in your account. When you purchase a Reserved Instance, you can set attributes such as instance type, platform, tenancy, Region, or Availability Zone (optional).Īny existing or new On-Demand Instances matching the selected attributes are charged at the discounted Reserved Instance price. An Amazon Reserved Instance (RI) is a billing discount that allows you to save on your Amazon EC2 usage costs.
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