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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
99
Ranking in other categories
File and Object Storage (1st)
EXAScaler
Ranking in NAS
15th
Average Rating
9.0
Reviews Sentiment
8.5
Number of Reviews
1
Ranking in other categories
File System Software (8th), Cloud Storage (18th), Storage Performance (4th), Cloud Master Data Management (MDM) (10th)
 

Mindshare comparison

As of August 2026, in the NAS category, the mindshare of Dell PowerScale is 13.8%, down from 17.5% compared to the previous year. The mindshare of EXAScaler is 1.0%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS Mindshare Distribution
ProductMindshare (%)
Dell PowerScale13.8%
EXAScaler1.0%
Other85.2%
NAS
 

Featured Reviews

RahulSharma8 - PeerSpot reviewer
Storage Platform Engineer at Expedia Group
Unified file sharing has simplified multi-tenant access and has delivered seamless data replication
Dell PowerScale (Isilon) includes its replication features; when we decommissioned our old Isilon cluster, we migrated all of the data to a new cluster, and it was pretty seamless. All you have to do is create the certificates and make those certificates available to the target cluster, then initiate a few jobs. The inter-cluster replication feature, called SyncIQ, allows you to set up all of the jobs and move your data entirely, either timely or all at once. Another suitable feature is the ability to back up your directories; you can take snapshots for all of your directories, and in fact, I believe you can take around a thousand snapshots for a single directory. The inter-replication, geo-replication is one feature. Dell provides a variety class of hardware suitable for your workloads, meaning if your data is just lab and not critical, you don't have to spend much on the hardware; conversely, if your data is mission-critical, you can buy a high-performance node from Dell. Additionally, you can span Dell PowerScale (Isilon) cluster to a large number of nodes, and code upgrades are pretty smooth because all protocols will be upgraded under a single piece of code. Since it provides a single file system that spans across the nodes, you don't have to worry about that directory structure being separately created on individual nodes, making it a fitting solution for a data lake solution because you can access the same data from multiple protocols.
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

"Dell PowerScale is performing well with the growing needs of my organization, with no issues so far."
"Dell PowerScale (Isilon) is brilliant for scalability and really, really good in that regard."
"It is stable and very user-friendly."
"The features that I have mentioned improve my company through the reliability of the storage; it is always available, and it works, which is the important thing."
"The features of Dell PowerScale (Isilon) that I appreciate the most include the scale of architecture and the way it is designed, which benefit my company by providing less downtime and less overhead."
"The overall operational efficiency and ease of use of Dell PowerScale is commendable; it is very good storage with easy access via GUI, meaning we do not need to perform many complex maneuvers for storage management."
"I feel that the reliability and availability of Dell PowerScale have positively affected my company's data operations as it's running stably, and we haven't had service outages or anything of that nature, so it's been very helpful."
"The inter-cluster replication feature, called SyncIQ, allows you to set up all of the jobs and move your data entirely, either timely or all at once."
"The customers who use DDN EXAScaler are happy, especially when using large AI clusters for training."
"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."
 

Cons

"There is room for improvement with the updates. It can take a significant amount of time to do a major OS update."
"The product itself is capable of very much, but the initial deployment experience can be lacking possibly because it does not incorporate any design phase."
"Dell PowerScale needs to reduce its price."
"The solution can be integrated with an automation system. Dell uses another framework developed in-house. They can integrate it with machines."
"The technical support is average. There are certainly not the best that we have ever dealt with, but far from the worst ones."
"I would like to see improvements in data deduplication. In our environment, the deduplication ratio is approximately 2 or 2.3 to 1, so I believe there can be enhancements in this area."
"I think Dell PowerScale (Isilon) can be improved, as the cost models are quite expensive for administration."
"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."
"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

"The price of the solution can fluctuate. The price can be competitive or other times not. The price of the solution could be better."
"Price was also a significant factor in our decision to go with PowerScale. The team at EMC, now Dell EMC, came through with a highly competitive offer that tipped the scales towards their solution. There was only one other solution around the same price point, but it could not match PowerScale on features. That other solution is no longer on the market."
"It's a high-cost offering amounting to three or four million Swedish kronor, or about $400,000 or euros, for approximately 480 terabytes of storage."
"The price of Dell PowerScale (Isilon) is reasonable."
"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."
"We use the TNA approach which is a great opportunity for us to better manage the licenses based on how much consumption is available for the different customers so we can use that approach and scalability."
"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."
"The only drawback for us is that it's a large upfront investment. This was a huge decision for a startup company to make. It took a bit for us to get over the line on it, but we have not regretted it."
Information not available
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Top Industries

By visitors reading reviews
Manufacturing Company
10%
Financial Services Firm
9%
Government
8%
Computer Software Company
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business29
Midsize Enterprise23
Large Enterprise55
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,
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Find out what your peers are saying about Dell Technologies, NetApp, CTERA and others in NAS. Updated: August 2026.
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