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Amazon FSx vs IONOS S3 Object Storage comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Amazon FSx
Ranking in Cloud Storage
14th
Average Rating
8.4
Reviews Sentiment
7.8
Number of Reviews
4
Ranking in other categories
File System Software (4th), File and Object Storage (16th)
IONOS S3 Object Storage
Ranking in Cloud Storage
22nd
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the Cloud Storage category, the mindshare of Amazon FSx is 4.5%, up from 1.2% compared to the previous year. The mindshare of IONOS S3 Object Storage is 1.2%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Storage
 

Featured Reviews

MuhammadAzhar Khan - PeerSpot reviewer
Shared storage capabilities provide enterprise value with good reliability
Amazon FSx is more costly compared to other storage solutions like EBS or EFS. The auto-scaling feature should be improved, as it currently includes downtime. I need to manually increase the storage, which is not ideal. Integrating FSx with Windows Server is challenging; it's a long process involving Active Directory (AD) setup and synchronization.
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860,632 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Manufacturing Company
14%
Financial Services Firm
12%
Computer Software Company
10%
Retailer
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

What needs improvement with Amazon FSx?
From my experience, there are areas in Amazon FSx where more performance is needed, as they will be looking for higher IOPS. Sometimes we go with Weka or other solutions due to this need, so it sho...
What is your primary use case for Amazon FSx?
Our customers mainly use Amazon FSx for high-performance computing. Our customers are mainly in the Life Science and Pharma industries. The majority of people are looking at S3 as their destination...
What advice do you have for others considering Amazon FSx?
There is an ongoing project where my customers are exploring the FSx solution, but not yet for AI-driven projects; they plan to in the future. For those who want to use Amazon FSx, I recommend it a...
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Also Known As

Amazon FSx for Windows File Server, Amazon FSx for Lustre
No data available
 

Overview

 

Sample Customers

Neiman Marcus, T Mobile, Docxellent, Matrix, Lyell
Information Not Available
Find out what your peers are saying about Google, NetApp, Dropbox and others in Cloud Storage. Updated: June 2025.
860,632 professionals have used our research since 2012.