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Amazon FSx vs VAST Data comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Nov 4, 2024

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 (12th), Software Defined Storage (SDS) (9th)
Amazon FSx
Ranking in File and Object Storage
15th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
4
Ranking in other categories
File System Software (5th), Cloud Storage (15th)
VAST Data
Ranking in File and Object Storage
18th
Average Rating
10.0
Reviews Sentiment
7.5
Number of Reviews
2
Ranking in other categories
All-Flash Storage (30th), NVMe All-Flash Storage Arrays (12th)
 

Mindshare comparison

As of February 2026, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.5%, down from 5.9% compared to the previous year. The mindshare of Amazon FSx is 1.2%, up from 0.3% compared to the previous year. The mindshare of VAST Data is 4.3%, up from 4.2% 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 FlashBlade5.5%
Amazon FSx1.2%
VAST Data4.3%
Other89.0%
File and Object Storage
 

Featured Reviews

MikaelHellström - PeerSpot reviewer
IT Manager at Regin Dalarna
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.
SB
Senior Design Engineer at Clovertex
Provides seamless research data management with effortless setup
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 should have more IO capacity when there is a demand. More performance is needed specifically in the IO area.
Alan Powers - PeerSpot reviewer
HPC CTO at a manufacturing company with 10,001+ employees
Stability-wise, a device that has been up and running for years
The failover capability and resiliency are some of the solution's valuable features. The big thing is resilience because it has richer coding in it, so multiple devices can't fail. Also, one can still access a number of CBoxes that can allow one to access their file system. Once a device fails, it fails the transparency of the end-user, and it just starts using another resource. The encryption capability, the snapshots, along with a whole bunch of features make the tool valuable. VAST Data keeps adding more and more features all the time.

Quotes from Members

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

Pros

"We can capacity plan at a greater level than we used to."
"It uses the same platform for connectivity so integration is seamless."
"The most valuable features of FlashBlade include its replication capabilities, reports, and easy allocation. Everything is user-friendly."
"The onboarding and integrated monitoring tools are pretty good."
"It is very easy to use, and it is very fast."
"Using this solution has made our backups more reliable."
"The most valuable feature of this solution is performance."
"The most valuable feature is Safe Mode."
"FSx operates as an independent service, not tied to any server, which eliminates dependencies between applications for storage."
"The shared storage capability is highly valuable."
"I rate the stability of Amazon FSx ten out of ten."
"We used it for disaster recovery perspective behind a number of resources, like batch services and RDS."
"On a scale of one to ten, I would rate Amazon FSx a ten."
"The solution is useful for machine learning and scientific applications, including computer simulations."
"This has been one of the most reliable storage systems that I have ever used."
 

Cons

"In the realm of micro-services, I think that Pure Storage can do well if they start getting in there and making their arrays more micro-services ready."
"The speed could be improved."
"I have not seen ROI."
"There could be improvements in public cloud integration."
"I would like to have Snapshots and Snapmail in the next release. People who came from a NetApp background, especially expect these features."
"They need better integration with public clouds along with a better hybrid solution."
"The features provided for SMB customers are limited."
"I would also like to see better support for CIFS workloads."
"I've been facing a challenge when doing a failover from FSx side. AWS console does not refresh within a half hour."
"Amazon FSx is more costly compared to other storage solutions like EBS or EFS."
"From my experience, there are areas in Amazon FSx where more performance is needed, as they will be looking for higher IOPS."
"A direct FTP feature would be beneficial instead of relying on transmission services."
"Amazon FSx is more costly compared to other storage solutions like EBS or EFS."
"The read/write ratio is an area in the solution with some flaws and needs improvement."
"The write performance could be improved because it is less than half of the read performance."
 

Pricing and Cost Advice

"I understand that it is competitively priced compared to other brands."
"Support is a separate line item. Support is a different cost, but whatever your support is now, that's what you're going to pay forever. If your support's $100 today, six years from now it's $100. It doesn't fluctuate unless you upgrade it, or change it, etc."
"Licensing fees are paid yearly."
"It's a costly solution, but Pure Storage FlashBlade doesn't require additional licenses. All of the software is combined into one bundle."
"I rate the tool's pricing a seven to eight out of ten."
"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."
"I have seen ROI. It has allowed me to increase the density of my VMs without having to purchase anything additional."
"We used a reseller for the purchase."
"The lowest price I have paid is $370 or $380 per month, while the highest can exceed $3,000 per month."
"Price-wise, VAST Data is not the cheapest, not the most expensive one."
"We acquired VAST Data as a one-time, capital purchase."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
10%
Computer Software Company
10%
Government
7%
Manufacturing Company
13%
Financial Services Firm
11%
University
8%
Retailer
8%
Financial Services Firm
13%
Manufacturing Company
12%
Computer Software Company
12%
University
6%
 

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?
Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making...
What needs improvement with Pure Storage FlashBlade?
In my opinion, one way Pure Storage FlashBlade can be improved is by having more compatibility between the FlashArray...
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 highe...
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 ...
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; th...
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Also Known As

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

Overview

 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
Neiman Marcus, T Mobile, Docxellent, Matrix, Lyell
Norwest Venture Partners, General Dynamics Information Technology, Ginkgo Bioworks
Find out what your peers are saying about Amazon FSx vs. VAST Data and other solutions. Updated: December 2025.
881,707 professionals have used our research since 2012.