Question

Difficulty: MediumReserved Instances and Savings Plans Optimization

A company currently hosts a batch processing workload on a fleet of Amazon EC2 c6g.2xlargec6g.2xlarge instances in the useast1us-east-1 region. Over the next year, the company plans to modernize the workload by migrating 50%50\% of the processing to containerized tasks running on AWS Fargate in the same region, and upgrading the remaining EC2 instances to the newer c7g.2xlargec7g.2xlarge instance family. Which commitment-based discount option should a SysOps administrator recommend to optimize costs for both the remaining EC2 instances and the Fargate tasks without requiring manual exchanges or interventions?

  1. A
    EC2 Instance Savings Plans for the c6g instance family
  2. Compute Savings PlansAnswer
  3. C
    Convertible Reserved Instances for the c6g instance family
  4. D
    Standard Reserved Instances for the c6g instance family

Answer

Compute Savings Plans
Compute Savings Plans provide the greatest flexibility. They automatically apply to compute usage across Amazon EC2, AWS Fargate, and AWS Lambda regardless of instance family, size, Availability Zone, region, OS, or tenancy. This ensures that as the company transitions their batch workloads from c6g instances on EC2 to a combination of c7g instances on EC2 and containerized tasks on Fargate, the discounts continue to apply seamlessly without requiring manual exchanges or interventions.

Step-by-Step Solution

1
Analyze the target architecture changes over the one-year period.
The target state consists of a mix of EC2 c7g instances and AWS Fargate tasks, representing changes in both EC2 instance families and compute service types.
Understanding the final architecture helps match the target workloads to the correct discount capabilities.
2
Evaluate the scope and flexibility of the available discount options.
Compute Savings Plans apply to EC2 instances (any family, size, or region) and AWS Fargate automatically. EC2 Instance Savings Plans and Reserved Instances do not support Fargate or require manual adjustments for instance family changes.
Selecting the most flexible discount model is necessary to avoid lock-in when workloads and instance types evolve.
3
Identify the option that applies automatically to both compute types without operational overhead.
Compute Savings Plans are selected as they require no manual modifications, exchanges, or interventions to cover both the upgraded EC2 instances and the Fargate tasks.
This meets the business goal of optimizing costs with minimal administrative overhead.

Key Concept

Compute Savings Plans offer the highest level of flexibility among AWS commitment-based discounts, automatically applying to EC2 instance usage across families, sizes, and regions, as well as AWS Fargate and AWS Lambda.
Estimated Time:1m 30s
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