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Dell PowerScale (Isilon) vs Panasas ActiveStor comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 7, 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

Dell PowerScale (Isilon)
Ranking in NAS
2nd
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
72
Ranking in other categories
File and Object Storage (2nd)
Panasas ActiveStor
Ranking in NAS
21st
Average Rating
9.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of December 2025, in the NAS category, the mindshare of Dell PowerScale (Isilon) is 15.7%, down from 17.4% compared to the previous year. The mindshare of Panasas ActiveStor is 1.1%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS Market Share Distribution
ProductMarket Share (%)
Dell PowerScale (Isilon)15.7%
Panasas ActiveStor1.1%
Other83.2%
NAS
 

Featured Reviews

BE
Systems Engineer at Unisity LLC
Flexibility and reliability have supported seamless data growth
I cannot think of anything to improve about Dell PowerScale (Isilon). 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. They're different chassis, so the problem we run into in the data center is the depth of the actual equipment. The newer equipment, if we buy an FX910 or a 900, it's a lot shorter in scale than if I buy an 83,000, which is much bigger. This makes it more complicated for deployment.
MW
Project Manager at Realnux
Easy to use and flexible with great performance
We primarily use the solution for our HPC projects, high-performance computing projects The product has proven itself to be stable. The performance is great.  We've found the product to be quite flexible. It is extremely easy to use.  The solution is quite expensive. The solution could offer…

Quotes from Members

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

Pros

"I buy Dell PowerScale (Isilon) because of the price, service, and technology, and the technology that is particularly good for my company is that I have two Dell PowerScale (Isilon) systems in two sites, and I use replication between them with Superna software, which is a third-party Dell technology."
"The most valuable feature for me is SyncIQ."
"You plug in a new node and data starts migrating over to it, and IT spreads out the load. We've added multiple nodes to the system since deploying it. The process is pretty seamless, and we are able to do it with no downtime. It's a very easy process to do."
"PowerScale has made it extremely easy to scale file data across our organization. We have two implementations of Isilon. One is a replica of the other. When scaling, we add nodes to each location and expand the cluster. The process is straightforward."
"PowerScale allows us to manage storage without managing RAID groups or migrating volumes between controllers. It has really simplified things. We're not having to worry about the underlying infrastructure. That takes care of itself. We just worry about the data. It's really easy for deploying and managing storage at the petabyte scale."
"Ability to scale the number of nodes without having to build additional clusters."
"I would rate Dell PowerScale (Isilon) as a product a ten out of ten."
"The capacity and scalability are what I appreciate the most about it; that was huge for us. We saw its benefits immediately after we started using it."
"I am impressed with the tool's performance and bandwidth."
"We've found the product to be quite flexible."
 

Cons

"I would make Dell PowerScale (Isilon) better by improving SmartSync in the graphical user interface. Currently, everything has to be done through the command line, and I prefer having a graphical interface."
"We see room for improvement in Dell PowerScale (Isilon) because we need personnel to effectively utilize all our infrastructure; it's not easy to find skilled people to work on AI and data analysis."
"We're still fairly new with it. It's been a pretty positive experience thus far. However, they could improve implementation, as we had to rack and stack it ourselves."
"Dell's customer service needs improvement. Specifically, hardware failures under warranty should be addressed within the promised timeline."
"Improvements could be made to reduce the costs and the high level of knowledge needed to maintain and use them. We had old hard drives with moving parts in Dell PowerScale, and due to this, we must switch to a more efficient environment with all-flash."
"It would be good to have synchronized mirroring between two clusters without using a third-party program."
"We have issues in Brazil with the procurement of solutions because we have to check the entire market and justify the pricing to our audit institutions, making it difficult to keep with the same vendor."
"That said, for the other security features, it would be helpful if Tenable - and I know it's outside the scope of this question itself - had Isilon-specific plugins."
"We have received complaints from customers that the tool is not easy to use. The tool's local technical service is slow. The solution is good for Linux customers and not for customers with other operating systems like Windows. The solution should provide storage without client software integration."
"The solution is quite expensive."
 

Pricing and Cost Advice

"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 solution is expensive; it is not the cheapest solution out there. If you look at it from a total cost of ownership perspective, then it is a very compelling solution. However, if you're looking at just dollar per terabyte and not looking at the big picture, then you could be distracted by the price. It is not an amazing price, but it's pretty good. It is also very good when you consider the total cost of ownership and ease of management."
"It is an expensive solution."
"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 price of the solution is high."
"We paid an additional fee to have Dell's ProDeploy Plus team implement it."
"Pricing for this solution is reasonable."
"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 solution's price is reasonable."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Manufacturing Company
11%
Financial Services Firm
9%
Government
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise18
Large Enterprise39
No data available
 

Questions from the Community

What do you like most about Dell EMC PowerScale (Isilon)?
The solution provides massive performance, scalability, efficiency, and ease of management.
What is your experience regarding pricing and costs for Dell EMC PowerScale (Isilon)?
As for my experience with the pricing, setup cost, and licensing, we have had Dell PowerScale (Isilon) for a while now, so we are basically on the renewal track all the time. We did not find it to ...
What needs improvement with Dell EMC PowerScale (Isilon)?
Dell PowerScale (Isilon) can be improved by enhancing the ability for more native data mover technologies that offer security and resiliency features.
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Also Known As

PowerScale, Dell EMC Isilon
ActiveStor
 

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,
Advanced Mask Technology Center Airbus Argonne National Laboratory The University of Texas at Dallas School of Arts Technology and Emerging Communication Башнефть Boeing Bosch California Academy of Sciences Caltech Canon Case Western Reserve University Conoco Phillips Deluxe DirecTV Fairfield Technologies United States Federal Reserve Garvan Institute of Medical Research Goodyear Halliburton Harvard Medical School Honeywell In-Depth Geophysical Intel Kawasaki Lockheed Martin 3M Magseis Fairfield Mammal Studios The Man Group McLaren Mercedes-Benz MINES ParisTech NASA US Navy National Biodefense Analysis and Countermeasures Center NBCUniversal National Institutes of Health Nio National Oceanic and Atmospheric Administration Northrup Grumman Novartis Partners Healthcare Procter & Gamble PGS Pratt & Whitney Rutherford Appleton Lab Siemens Sim International Sinopec Solers Square Cnix TGS Toyota Motorsport GMBH Toppan Turner UMass Medical School United Technologies University of Georgia University of California Los Angeles University of Minnesota University of Notre Dame University of California San Diego Center for Microbiome Innovation Whiskytree
Find out what your peers are saying about Dell PowerScale (Isilon) vs. Panasas ActiveStor and other solutions. Updated: December 2025.
879,259 professionals have used our research since 2012.