A capacity reservation in Amazon Web Services (AWS) EC2 is a reservation of EC2 instances for a specified period of time, providing the ability to launch EC2 instances as reserved instances. The reservation guarantees that the capacity will be available for the specified period, regardless of other changes in the demand for EC2 instances. In this scenario, the solution would involve making a capacity reservation in EC2 and ensuring that the necessary resources are available for the required period of time.

A comprehensive guide on solving capacity reservation issues for EC2 instances in Amazon Web Services (AWS).

Solving Capacity Reservation Challenges with AWS EC2

Scenario: A growing online retail business is experiencing frequent outages during periods of peak traffic due to insufficient computing capacity. The business has decided to implement a scalable and highly available infrastructure using AWS EC2 and capacity reservations.

Solution:

Step 1: Create an AWS account and log in to the AWS Management Console.

Step 2: Navigate to the EC2 Dashboard and select "Capacity Reservations" from the navigation menu.

Step 3: Select the appropriate region and choose "Create Capacity Reservation."

Step 4: Choose the number of instances and the instance type that the business requires.

Step 5: Select the VPC and subnet that the instances will be launched in.

Step 6: Choose the amount of time that the reservation will be active, and specify the start time.

Step 7: Choose the option to pay upfront for the reserved capacity, or to pay for it on an hourly basis.

Step 8: Select the desired instance tenancy and choose the option to create the capacity reservation.

Step 9: Launch EC2 instances in the reserved capacity by using the EC2 launch wizard or the AWS CLI.

Step 10: Monitor the EC2 instances and the capacity reservation in the AWS Management Console to ensure that the instances are running smoothly.

This solution will allow the online retail business to reserve capacity in advance and ensure that it has the computing resources it needs during periods of peak traffic, avoiding outages and ensuring a positive customer experience.

Here are some reference links:

AWS EC2 official documentation: https://aws.amazon.com/ec2/

EC2 User Guide: https://docs.aws.amazon.com/en_us/AWSEC2/latest/UserGuide/Welcome.html

EC2 Instance Types: https://aws.amazon.com/ec2/instance-types/

EC2 Pricing: https://aws.amazon.com/ec2/pricing/

EC2 Reservation Types: https://aws.amazon.com/ec2/purchasing-options/reserved-instances/

EC2 Instance Capacity Reservation: https://aws.amazon.com/ec2/instance-capacity-reservations/

EC2 Instance Scheduling: https://aws.amazon.com/ec2/instance-scheduling/