AWS S3 Vs. Amazon EBS

October 25, 2022

AWS S3 Vs. Amazon EBS

When it comes to choosing a storage technology for your cloud infrastructure, AWS provides two main options: Amazon S3 (Simple Storage Service) and Amazon EBS (Elastic Block Store). In this blog post, we'll compare these two services based on their features, pricing, and performance.


Amazon S3 is a highly scalable object storage service that can store and retrieve any amount of data from anywhere on the web. It is designed to offer 11 9's of object durability, meaning that data is highly available and durable even in the face of failures. It also provides flexible storage classes that allow you to store data based on its access patterns.

On the other hand, Amazon EBS is a persistent block storage service that provides highly available block-level storage volumes for use with EC2 instances. EBS volumes can be attached to EC2 instances and used like any other hard drive, providing low-latency access to data.


When it comes to pricing, Amazon S3 and Amazon EBS have wildly different models.

Amazon S3 charges based on the amount of data stored, requests made to the service, and the amount of data transferred out. It also has different pricing tiers based on the storage class used, with Glacier Deep Archive being the cheapest but slowest option.

Amazon EBS charges per GB of provisioned storage per month, as well as for data transfers and snapshot storage. While the pricing for EBS may seem higher than S3 at first glance, it's important to remember that with EBS, you only pay for what you use and can adjust storage volumes as needed.


In terms of performance, both S3 and EBS are highly reliable and performant storage options.

Amazon S3 allows for concurrent read and write access to objects stored in S3 buckets, which can greatly enhance performance for high-traffic systems. However, S3 is primarily designed for object storage and may not be the best choice for applications that require low-latency access to data.

Amazon EBS provides low-latency access to persistent block storage volumes, making it an ideal choice for applications that require high-performance access to data. However, EBS volumes are limited by the maximum throughput of the EC2 instance they are attached to, meaning that performance may be impacted during periods of heavy usage.


At the end of the day, choosing between S3 and EBS depends on the specific needs of your application. If you need highly scalable and durable object storage, S3 is the way to go. On the other hand, if you require low-latency access to persistent block storage volumes for your EC2 instances, EBS is your best bet.

Regardless of which option you choose, it's important to keep in mind pricing models and performance characteristics to ensure that you're getting the best value for your money.


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