Trending Articles

Blog Post

Amazon Elastic Block Store – Definition & Overview

Amazon Elastic Block Store – Definition & Overview


Amazon Elastic Block Store (EBS) is a block-level storage service for Amazon EC2 (Elastic Compute Cloud) instances. It provides persistent, high-performance block storage for your EC2 instances so you can reliably store and access your data.

Furthermore, Amazon EBS is scalable and highly available, so entities can grow their storage according to their needs and be confident that their data is always available.

Key features of Amazon Elastic Block Store:

Below are the key features of Amazon EBS:

  1. Durability: EBS aims to be durable. It uses multiple copies of the data stored across different Availability Zones, protecting data from hardware failures or regional outages.
  2. Snapshots and Backups: EBS lets users create point-in-time snapshots of volumes stored in Amazon S3. These snapshots serve as backups and can be used to restore volumes or produce new volumes based on the snapshot data.
  3. Scalability: EBS is scalable, growing the storage as the needs change. It eases adding or removing volumes to the EC2 instances without taking them down.
  4. Highly available: It supports high availability and redundancy by allowing users to create snapshots and copy them across different Availability Zones within a region. Such ensures data durability and availability during hardware failures or other issues.
  5. Volume Types: Amazon EBS provides multiple volume types for performance and cost requirements.
  • General Purpose (SSD): Stabilizes price and performance for various workloads.
  • Provisioned IOPS (SSD): It is intended for I/O-intensive workloads, allowing users to provision a specific amount of IOPS.
  • Throughput Optimized HDD: Optimized for commonly accessed, throughput-intensive workloads.
  • Cold HDD (Magnetic): Suitable for uncommonly accessed, throughput-intensive workloads at lower costs.

Use cases for Amazon EBS:

  • Primary storage: EBS is a good choice for the primary storage for user’s EC2 instances. Its uses extend to storing operating systems, applications, and data.
  • Boot volumes: Its uses extend to the boot volume for the user’s EC2 instances. Therefore, it stores the operating system and application on Amazon EBS, enabling users to easily replace or upgrade their EC2 instances without losing data.
  • Data storage for applications: EBS uses extend to store data for user applications. This includes using application data, such as databases, files, and images.

Benefits of Amazon Elastic Block Store:

The below benefits collectively make Amazon EBS a useful and steadfast storage solution for a wide range of applications and use cases:

  1. Scalable and Flexible Storage:

EBS provides scalable and flexible storage solutions that easily adjust to meet the changing needs of applications. Users can vigorously resize volumes and adapt storage capacity to match evolving workloads.

  1. High Performance Options:

It offers different volume types, including General Purpose SSD, Provisioned IOPS SSD, and Throughput Optimized HDD, consenting users to select the most appropriate option for their application’s performance requirements.

  1. Data Durability and Redundancy:

EBS volumes support snapshots, which are stored in Amazon S3. This feature enhances data durability and provides a reliable backup mechanism. Also, users can create redundant copies of their data across multiple Availability Zones inside a region, ensuring high availability.

  1. Easy Integration with EC2 Instances:

Amazon EBS volumes impeccably integrate with Amazon EC2 instances, providing persistent and block-level storage for applications running in the AWS cloud. The volumes can be easily attached or detached from EC2 instances as needed.

  1. Data Encryption and Security:

It supports encryption at rest using AWS Key Management Service (KMS). This improves data security, ensuring the protection of sensitive information. Encryption delivers an additional level of security for compliance with regulatory requirements and data protection policies.


In conclusion, Amazon Elastic Block Store is as a central and versatile storage solution within the AWS ecosystem. Its scalability and elasticity authorize users to dynamically adjust storage capacity to match the evolving needs of their applications.

With diverse volume types catering to several performance requirements, EBS offers high-performance options, including Provisioned IOPS for I/O-intensive workloads. Integrating Amazon EC2 instances ensures unified and persistent block-level storage for cloud-based applications.

Additionally, features such as snapshots, redundancy across Availability Zones, and encryption at rest contribute to data durability, availability, and security. Amazon EBS remains the primary enabler for creating resilient, high-performance, and secure cloud architectures on AWS.

Related posts