Armen Edvard
2 min readAug 3, 2023

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Amazon Elastic Compute Cloud (Amazon EC2) is a foundational service in the Amazon Web Services (AWS) cloud platform, providing scalable and flexible computing resources. As businesses evolve, their computing requirements may change, prompting the need to modify or resize EC2 instances. In this blog post, we will explore what ‘changing’ means in the context of Amazon EC2 and how you can resize or modify instances to meet your evolving workload demands.

Resizing EC2 Instances:

Resizing an EC2 instance refers to changing its instance type, which determines the amount of CPU, memory, storage, and networking capacity allocated to the instance. There are two types of resizing:

  1. Vertical Scaling: Vertical scaling, also known as instance resizing, involves changing an existing instance’s type to one with more or fewer resources. For example, upgrading an instance from a t2.micro to an m5.large increases the number of vCPUs and memory, allowing the instance to handle more demanding workloads.
  2. Horizontal Scaling: Horizontal scaling refers to increasing or decreasing the number of instances in an EC2 Auto Scaling group. This type of scaling allows you to handle varying workloads by adding or removing instances dynamically based on demand.

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Modifying EC2 Instances:

Modifying an EC2 instance involves changing its configuration or attributes. Some common modifications include:

  1. Changing Security Groups: You can modify an instance’s security group to allow or restrict incoming and outgoing traffic. This helps in managing network access and security.
  2. Adding/Removing Elastic Network Interfaces (ENIs): You can attach or detach additional ENIs to an instance to expand or streamline network connectivity
  3. Updating IAM Roles: Modifying IAM roles allows you to grant or revoke permissions for accessing AWS Training in Pune services and resources.
  4. Changing EBS Volume Size: You can modify the size of an Elastic Block Store (EBS) volume attached to an instance to increase or decrease storage capacity.
  5. Modifying Instance User Data: User data allows you to run scripts or commands when an instance is launched. You can modify this data to change the instance’s behavior during boot-up.

Conclusion:

In the world of cloud computing, flexibility and adaptability are paramount. AWS Course in Pune EC2 empowers businesses to respond to changing workload requirements by resizing or modifying instances. Resizing instances helps in adjusting the compute resources, while modifying instances allows you to tailor instance configurations to suit your specific needs.

By understanding how to effectively change EC2 instances, businesses can optimize resource utilization, enhance performance, and ensure cost efficiency. Embrace the power of EC2’s scalability and configurability to stay agile and responsive in the dynamic cloud environment, enabling your applications and services to thrive and deliver exceptional performance.

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