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What Is Amazon S3?

Amazon S3 is cloud object storage from Amazon Web Services that offers scalable storage for any type of data in the cloud. The service provides low-latency access through a simple web services interface to store and retrieve any amount of data from anywhere on the web. S3 offers industry-leading durability, availability, security, and performance.

Who Uses Amazon S3?

Designed for businesses of all sizes, it is an object storage solution that helps store data, manage access controls, track inventory, monitor storage, accelerate bulk data transfers, and more.

Amazon S3 Software - 1
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Amazon S3 Software - 3

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Reviews of Amazon S3

Average score

Overall
4.7
Ease of Use
4.3
Customer Service
4.4
Features
4.6
Value for Money
4.5

Reviews by company size (employees)

  • <50
  • 51-200
  • 201-1,000
  • >1,001
Craig John
Craig John
Senior Technical Operations Specialist in US
Verified LinkedIn User
Information Technology & Services, 1,001–5,000 Employees
Used the Software for: 1+ year
Reviewer Source

Gold Standard for bucketed data

5.0 4 weeks ago New

Pros:

The bucketing system and file structure are easy to navigate, and the UI is intuitive. There's plenty of documentation, and the UI is approachable for those less technically inclined (we have folks with workflows that involve moving around some S3 data, but not getting much deeper than that, and being able to easily copy/move folders using the UI makes more sense than trying to teach CLI commands). No issues with reliability of access.

Cons:

Integrations are most effective when using other AWS products, but that's fairly standard these days. Would love to see macros or AI assistance for regular, repeatable tasks.

Yurie Katri
Yurie Katri
DevOps Engineer in Spain
Verified LinkedIn User
Telecommunications, 10,000+ Employees
Used the Software for: 1+ year
Reviewer Source

Alternatives Considered:

The heart of the cloud is no longer limited to discussion of storage

4.0 2 years ago

Comments: As storage, it is secure and economical, or it can handle processing that requires high performance, and detailed selection and configuration are possible. It is a basic and necessary function that forms the core of the cloud together with EC2. The price and performance change automatically according to the frequency of access, so content and variety can be chosen according to the user. S3's billing system is basically pay-as-you-go and control of the operation is straightforward. Considering the security, maintenance and start-up skills required, rather than owning an actual computer, it appears to be considerably cheaper.

Pros:

Secure feel with ultra-high durability. Convenient data entry through integration with various services. Really easy and convenient. Flexibility to activate Lambda based on S3 events (but there are problems). Flexible security configuration by configuring S3 and IAM. Flexible pricing depends on the frequency of use (although it is cheap to start with). Recently, I was very happy to be able to use it as a data storage location for AWS Transfer for FTP. Since the server less FTP host environment was created, the operation is very simple.

Cons:

The activation of the S3 event is not guaranteed. In exceptional cases, it may not trigger and you may have to write another Lambda for recovery. This is problematic.

Tonia
IT Administrator in US
Nonprofit Organization Management, 51–200 Employees
Used the Software for: 2+ years
Reviewer Source

Amazon S3 review

3.0 12 months ago

Comments: Amazon S3 did exactly what I wanted it to do once I got past the setup obstacles. It is a bit difficult to navagate. Amazon does offer free training for their products which is a plus.

Pros:

With Amazon being such a large company, we can use multiple technologies with only one bill. Amazon is well known and does a good job at storing and retaining my data. Amazon has many more features than their competitors which is great if you know how to set them up and run them. Amazon S3 does offer free training for their products which is helpful.

Cons:

Amazon S3 platform is hard to navigate, I feel it is ment for an advanced user rather than someone who is trying out new technology. Amazon is a bit higher priced than many competitors.

Mathieu
Mathieu
Onboarding in Canada
Verified LinkedIn User
Information Services, 501–1,000 Employees
Used the Software for: 2+ years
Reviewer Source

Swiss Army knife of cloud storage

5.0 last month New

Pros:

Uploading and finding files is a breeze, and knowing my stuff is safe and always accessible gives me peace of mind. Plus, the ability to scale up without breaking a sweat is a game-changer. But hey, let's talk about the elephant in the room - the pricing. It's like trying to decipher a puzzle sometimes, especially as your storage needs grow.

Cons:

While Amazon S3 is fantastic for storing my files, sometimes retrieving them feels like waiting for water to boil. And yeah, that pricing labyrinth?

Brandon R
Brandon R
Software Engineer in US
Verified LinkedIn User
Wireless, 501–1,000 Employees
Used the Software for: 1+ year
Reviewer Source

Alternatives Considered:

Low-cost and reliable object storage

4.0 2 years ago

Comments: Since it can temporarily store all kinds of data as a data lake, it was adopted as a storage destination for data generated by IoT devices that are difficult to predict and voice data for cloud services. With limited resources, such as local ones, it is difficult to estimate the initial investment and scale up, but using S3, there are no upfront costs and you only pay for the amount used.

Pros:

The ultimate in cloud storage with the highest levels of availability and durability. Attractively, you can use storage at a low cost per TB. Data sent from IoT devices, logs from all AWS services, backups of AWS services, and so on. They can be stored in any format without worrying about running out of capacity resources, which gives us a great sense of reliability and security.

Cons:

The fee schedule is confusing, making it challenging to estimate total costs. I want a more accurate cost simulation function. I also want a safety warning function because incorrect configuration increases safety risks.

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