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DDN A3I vs StoneFly USO comparison

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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

Pure Storage FlashBlade
Sponsored
Ranking in File and Object Storage
8th
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
39
Ranking in other categories
All-Flash Storage (15th), Software Defined Storage (SDS) (8th)
DDN A3I
Ranking in File and Object Storage
38th
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
All-Flash Storage (43rd), SSD (9th), Storage Performance (5th), NVMe All-Flash Storage Arrays (29th)
StoneFly USO
Ranking in File and Object Storage
49th
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2025, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.6%, down from 6.2% compared to the previous year. The mindshare of DDN A3I is 0.2%, up from 0.0% compared to the previous year. The mindshare of StoneFly USO is 0.1%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File and Object Storage Market Share Distribution
ProductMarket Share (%)
Pure Storage FlashBlade5.6%
DDN A3I0.2%
StoneFly USO0.1%
Other94.1%
File and Object Storage
 

Featured Reviews

MikaelHellström - PeerSpot reviewer
Has handled backup storage needs reliably and supports seamless upgrades
In environments requiring high throughput and low latency, Pure Storage FlashBlade provides high throughput and normal latency, but we do not have any application that requires low latency right now, so the latency of three to five milliseconds is considered kind of high. Pure Storage FlashBlade's ability to integrate with enterprise applications is not important for us, as we only want to present an S3 bucket for our backup, which we have done, and it works very fast. We use the Purity software's data reduction techniques; we have a backup software that compresses everything before sending it to the S3 bucket, achieving a data reduction of 1.1 to one. I would recommend Pure Storage FlashBlade to other companies because it's a very fast and scalable solution for anyone who needs it. On a scale of 1-10, I rate this solution an 8.
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
10%
Government
7%
No data available
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
No data available
No data available
 

Questions from the Community

What do you like most about Pure Storage FlashBlade?
The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power out...
What is your experience regarding pricing and costs for Pure Storage FlashBlade?
The pricing of Pure Storage FlashBlade is expensive compared to other products I used from other companies in the pas...
What needs improvement with Pure Storage FlashBlade?
I believe there is not much improvement needed because they have everything we need, but the interface is a little bi...
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Also Known As

No data available
DDN AI200X, DDN AI400X
No data available
 

Overview

Information not available
 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
Information Not Available
1. Aetna 2. Accenture 3. Adobe 4. ADP 5. AIG 6. Airbus 7. Amazon 8. American Express 9. AmerisourceBergen 10. ATT 11. Autodesk 12. Bank of America 13. Barclay's 14. Baxter International 15. Bechtel 16. Boeing 17. Bristol-Myers Squibb 18. Cisco Systems 19. Coca-Cola 20. Comcast 21. ConocoPhillips 22. Constellation Brands 23. Dell 24. ETRADE 25. ExxonMobil 26. FedEx 27. Ford Motor Company 28. General Electric 29. General Motors 30. Google 31. Halliburton 32. Honeywell
Find out what your peers are saying about Red Hat, Dell Technologies, Nutanix and others in File and Object Storage. Updated: October 2025.
872,837 professionals have used our research since 2012.