Difference Between Amazon S3 and Amazon EBS (With Table)

The storage option you select has a significant impact on the performance you get and also the costs you’ll incur. You should match your computing, application, and processing needs to the proper storage technologies to deliver maximal efficiency. Amazon S3 and Amazon EBS are two separate storage types offered by AWS that can be used for a variety of workloads.

Amazon S3 vs Amazon EBS

The main difference between Amazon S3 and Amazon EBS is that Amazon S3 is an object-level data storage that enables customers to access data from anywhere in the world through the internet, on the other hand, Amazon EBS is a block-level data storage provided by Amazon. Block storage stores files into numerous volumes known as blocks that operate as independent hard drives, and it is not accessible through the internet.

Amazon Simple Storage Service is a robust data storage system that lets you keep as well as access data in real time from practically anywhere on the internet.

Amazon EBS is a storage service that can be attached to a running Amazon EC2 instance and exposed as a device within the instance. It provides high dependability, availability, and predictable storage volumes. Amazon EBS amounts are network-attached and last for the duration of an instance’s lifecycle. Amazon EBS is ideal for applications that need a file system, database, or bare block-level storage.

Comparison Table Between Amazon S3 and Amazon EBS

Parameters of Comparison Amazon S3Amazon EBS
Backup and restoreVersioning or cross-region replication are two options for Amazon S3.Backups and snapshots that are automatically created
DurabilityMultiple azs are used to store Amazon S3 data.Amazon EBS is redundantly stored in a single AZ.
ScalabilityAmazon S3’s scalability is limitless.EBS (Amazon Simple Storage Service) Manually increase or reduce the size
AccessAmazon S3 is available both publicly and privately.Only the linked EC2 instance has access to Amazon EBS.
PricingThe Amazon S3 service is a pay-per-use model.Pay for provided capacity with Amazon EBS.

What is Amazon S3?

It’s difficult to find a means to store, disseminate, and manage all of your data. Operating apps, delivering information to users, hosting high-traffic websites, and loading up document databases and email are all tasks that need to be completed. All of these things necessitate a lot of storage, and the demand for more storage capacity grows every day.

Creating and maintaining your own storage repository is costly and time-consuming. You must first purchase racks and racks of dedicated hardware and software, and then engage staff to set up sophisticated processes.

Adding more capacity costs money, time, and effort to deploy more servers, hard drives, and backup machines, and guessing how much capacity you’ll need in the future is difficult. Getting this wrong means either not having enough storage or overspending and winding up with overcapacity that sits idle.

The Amazon Simple Storage Service (Amazon S3) is a simple web services interface that allows developers and IT teams to store as well as retrieve unlimited volume of information from Amazon or elsewhere on the internet at any hour.

Select the area where you want your data to be kept, create a bucket, and you’re ready to start storing data in Amazon S3. You won’t require a crystal ball to figure out how much storage you’ll need tomorrow because Amazon S3 allows you to store as much data as you would like plus reach it anytime you wish. The least thing you want to bother about when it comes to storage is losing important data.

What is Amazon EBS?

The Amazon elastic block store, or EBS, is a type of Amazon cloud storage that offers Amazon EC2 instances with permanent block-level storage. To protect you against component failure and provide high availability and durability, Amazon EBS is automatically replicated inside its availability zone.

So, EBS stands for Elastic Block Store, and it is the disc volumes that you connect to your EC2 instance. You can build an EBS volume in the management interface, and when you do, you must specify the region and availability zone for it. 

To build new volumes, you can alternatively utilise the Amazon API or command-line tools. The screen displays an illustration of how to build a volume using the AWS CLI create volume command. Mention that the size of the volume availability zone and the volume type are defined in the command; the region is assumed from the AWS, CLI default settings. You can also use snapshots to copy a volume to a different region.

Important to note is that both Amazon EBS and instance store volumes have a first access penalty, which can result in a 5 to 50% decrease in performance on the first read or write. It is recommended that you want the volume to prevent this penalty from affecting production workloads, though this is not required and in many cases may not be noticeable. 

Using raid arrays, Amazon EBS volumes can be stripped raid zero for performance or configured redundant storage raid 1 for disaster recovery. Raid arrays can be created using standard operating system tools.

Main Difference Between Amazon S3 and Amazon EBS

  1. Amazon S3 provides quick scalability to its consumers; resources can be supplied and de-provisioned in real-time, whereas EBS does not have this functionality; storage resources must be increased or decreased manually.
  2. Amazon S3 storage enables you to use a utility-based approach and pay according to your usage, whereas Elastic block storage requires you to pay for the supplied capacity.
  3. The contents in an S3 bucket are unorganized and maybe fetched via HTTP protocols or even BitTorrent, whereas the data in an EBS instance is solely accessible by the instance to which it is attached
  4. Amazon S3 ensures data stability by holding it superfluously across many Availability Zones, whereas EBS ensures data durability by keeping it redundantly in a single Availability Zone.
  5. Amazon S3 utilizes versioning and cross-region replication for backup, whereas EBS’ backup capability relies on snapshots and scheduled backup.


Once the user understands his demands and which technique best suits them, Amazon S3 and Amazon EBS are significantly different from one another.

Amazon S3 (Simple Storage Service) allows you to create up to 100 buckets, each with an infinite amount of data storage capability. Elastic Block Store is the acronym for Amazon EBS. It can hold up to 2 Terabytes of data for each of its 2 volumes.


  1. https://dl.acm.org/doi/abs/10.1145/1383519.1383526
  2. http://cabibbo.dia.uniroma3.it/asw-2014-2015/altrui/AWS_Overview.pdf