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Dell PowerScale vs EXAScaler 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

Dell PowerScale
Ranking in NAS
1st
Average Rating
8.8
Reviews Sentiment
7.0
Number of Reviews
97
Ranking in other categories
File and Object Storage (1st)
EXAScaler
Ranking in NAS
16th
Average Rating
9.0
Reviews Sentiment
8.5
Number of Reviews
1
Ranking in other categories
File System Software (8th), Cloud Storage (17th), Storage Performance (3rd), Cloud Master Data Management (MDM) (10th)
 

Mindshare comparison

As of June 2026, in the NAS category, the mindshare of Dell PowerScale is 14.6%, down from 17.7% compared to the previous year. The mindshare of EXAScaler is 0.9%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS Mindshare Distribution
ProductMindshare (%)
Dell PowerScale14.6%
EXAScaler0.9%
Other84.5%
NAS
 

Featured Reviews

SK
Solutions Architect at a university with 10,001+ employees
Operates seamlessly and minimizes downtime while meeting enterprise file share demands
The features of Dell PowerScale (Isilon) that I appreciate the most include the scale of architecture and the way it is designed. These features benefit my company by providing less downtime and less overhead. While I have not calculated an exact number regarding the reduction in downtime, we have always been using the product, so we have no baseline to compare it to. However, it is a very good product. Dell PowerScale (Isilon) scales very well with the growing needs of my company.
reviewer2544219 - PeerSpot reviewer
Chief Architect at a tech services company with 1,001-5,000 employees
Solution enables exceptional performance and immense scalability for AI cluster training
I am a system integrator, and my customers are using EXAScaler as the de facto parallel file system for Google Cloud. They primarily use it for large AI cluster training EXAScaler provides amazing performance in terms of sequential read and random access, and it has a significant scalability…

Quotes from Members

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

Pros

"The solution is stable."
"Dell PowerScale is performing well with the growing needs of my organization, with no issues so far."
"Dell PowerScale helps in saving costs related to power and rack space, reducing physical hardware from over one hundred to twenty-nine chassis."
"The stability of the solution is good."
"It's easy to manage. The web UI is very intuitive, and there's CLI also that you can use to manage it."
"Dell PowerScale has positively impacted my organization as the students and the teachers are much happier using our services."
"Isilon is flexible in supporting various data workloads while keeping them protected. Dell continues to release updates and patches which enhance the use of this solution. This includes offering ransomware protection."
"The solution is extremely easy to manage. This is its most valuable feature."
"EXAScaler provides amazing performance in terms of sequential read and random access, and it has a significant scalability advantage as it is scalable to petabytes."
"The customers who use DDN EXAScaler are happy, especially when using large AI clusters for training."
 

Cons

"If I could improve one thing on Dell PowerScale (Isilon), it would be better object storage as it recently breached into S3, and that capability could be broadened."
"The technical support is average. There are certainly not the best that we have ever dealt with, but far from the worst ones."
"It would be nice to see tools like Superna Eyeglass built into PowerScale."
"There aren't many templates still coming out for it. They need to provide templates so we can copy and paste what we've done in the past to future, new things."
"Sometimes, it takes too long to set up everything. That's something I would want them to improve."
"The hardest challenge we have is due to how we've bought things over time. The way that we moved to the PowerEdge platform for the newer systems creates a scale problem as I still buy the older style systems, which are more dense storage."
"The solution’s interface and pricing could be improved."
"The support offered by the product is an area of concern where improvements are required."
"One challenge with EXAScaler is during upgrade time, as it can be problematic when upgrading node by node. Additionally, it is not multi-protocol by nature, requiring additional hardware to support various protocols like NFS or object storage."
 

Pricing and Cost Advice

"This solution is priced slightly higher than others on the market but does offer good quality. With this solution's data reduction and compression, we were able to purchase less. Costs have dropped because of the data rate of compression and deduplication."
"Our company finds the pricing high, but it decreases over time."
"The pricing is expensive, but I think it's a fair value because it does manage itself. It definitely is much simpler than any of the other scale-out storage platforms that we've looked at in the past."
"The general cost for a system like this is expensive. The total cost depends on your use case. You need to pay for every additional feature that you use."
"Dell PowerScale is an expensive solution compared to other products like Qumulo."
"Dealing with the product costs and licensing areas is getting easier since Dell is simplifying the licensing process and licensing packages offered to users."
"The platform is not cheap. However, on the software side, you can choose what you want license. So, you can start your licensing with the features that you need, then after buying the platform add some other features."
"The solution's licensing cost varies based on capacity and performance requirements."
Information not available
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Top Industries

By visitors reading reviews
Manufacturing Company
11%
Financial Services Firm
9%
Computer Software Company
8%
Government
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business25
Midsize Enterprise23
Large Enterprise53
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Dell EMC PowerScale (Isilon)?
My experience with pricing, setup cost, and licensing for Dell PowerScale has been expensive. Setup costs or provisioning experience has been pleasant. Typically you have kickoff meetings and there...
What needs improvement with Dell EMC PowerScale (Isilon)?
For improvements, we can focus on enhancing performance, upgrading the nodes, and accessing data through Isilon for more efficiency. Additionally, improvements to interfaces and certain aspects of ...
What is your primary use case for Dell EMC PowerScale (Isilon)?
Dell PowerScale is our main NAS environment storage where we create CIFS and NFS file shares for users.When users request a CIFS file share, they specify the SMB share name and the SmartConnect zon...
What is your experience regarding pricing and costs for EXAScaler?
EXAScaler is a bit expensive, particularly when comparing the total cost of ownership.
What needs improvement with EXAScaler?
One challenge with EXAScaler is during upgrade time, as it can be problematic when upgrading node by node. Additionally, it is not multi-protocol by nature, requiring additional hardware to support...
What is your primary use case for EXAScaler?
I am a system integrator, and my customers are using EXAScaler as the de facto parallel file system for Google Cloud. They primarily use it for large AI cluster training.
 

Also Known As

PowerScale, Dell EMC Isilon
No data available
 

Overview

 

Sample Customers

OMRF, University of Utah, Translational Genetics Research Institute, Arcis, Geofizyka Torumn, Cyprus E&P Corporation, Colburn School, Columbia Sportswear, Harvard Medical School, University of Michigan, National Library of France,
Information Not Available
Find out what your peers are saying about Dell Technologies, NetApp, CTERA and others in NAS. Updated: May 2026.
902,270 professionals have used our research since 2012.