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Dell PowerScale (Isilon) vs NetApp Private Storage 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
9.0
Reviews Sentiment
7.4
Number of Reviews
67
Ranking in other categories
File and Object Storage (3rd)
NetApp Private Storage
Ranking in NAS
17th
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
14
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2025, in the NAS category, the mindshare of Dell PowerScale (Isilon) is 16.5%, down from 17.1% compared to the previous year. The mindshare of NetApp Private Storage is 2.1%, up from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS Market Share Distribution
ProductMarket Share (%)
Dell PowerScale (Isilon)16.5%
NetApp Private Storage2.1%
Other81.4%
NAS
 

Featured Reviews

Scott Taylor - PeerSpot reviewer
Manages large data sets efficiently with hybrid cloud integration
My organization is quite large, with about 30,000 employees. The growth has been substantial in areas such as radiology and genomics. One of the best features we've utilized recently is offload to cloud pools due to capacity constraints on-premise. We didn't want to expand Dell PowerScale (Isilon) straight away, so we utilized cloud pools to offload some data to Azure. That's really saved us in certain areas as we didn't have funding to expand Dell PowerScale (Isilon) until next year, which is why we utilized the cloud pools functionality to offload.
Pramod-Talekar - PeerSpot reviewer
Well-suited for virtualized environments and highly stable solution
We are in a VMware Intra environment, so we are utilizing NetApp Storage for our virtualization infrastructure NetApp offers multiple features that we utilize for our projects. At the moment, we are extensively using SnapMirror Flex. There is room for improvement in the support. It has been a…

Quotes from Members

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

Pros

"It's easy to manage. The web UI is very intuitive, and there's CLI also that you can use to manage it."
"For maximizing storage utilization, PowerScale is great. When you write the data to it, it spreads it out to all the nodes, so you get all the performance from the entire pool."
"The reliability and stability of Dell PowerScale (Isilon) is good, with no downtime."
"The fact that we were able to set it up, use it, and, for the most part, didn't have to worry about it after we had it set up has been valuable."
"I don't have to rebuild the cluster to add a node."
"The product's scalability feature is super easy to use."
"Dell PowerScale includes a wealth of features that are important from a security and recovery perspective."
"The technical support has been excellent. I would give them a ten out of ten for support."
"The solution scales well."
"It gave us a platform which could clearly arrange all our files and volumes."
"Very stable and very scalable."
"Integration with other NetApp solutions and merging them is manageable."
"NetApp has really added a lot of features over the years to improve the product and performance. They can do things now like control ingress. They can control egress."
"At the moment, we are extensively using SnapMirror."
"NetApp has its own dedicated operating system, so it will not be affected by any wireless piggybacking or malware. That's the beauty of NetApp's operating system."
"The most valuable feature is integration."
 

Cons

"If they integrated some functions, as they have on Data Domain with a cyber recovery vault, it would be ideal."
"Dell PowerScale (Isilon) could improve in terms of having some problems with using IPv6 and IPv4 on the same namespace at the same time, which is one of our biggest problems as you have to do some really bad workarounds to get that working."
"Improvements could be made on the object storage side."
"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."
"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."
"It would be good to have synchronized mirroring between two clusters without using a third-party program."
"There are some missing features in the product, especially when our company needs to do some tape backup, and we see that the tool doesn't have integration capabilities."
"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 had to write a number of custom tools or scripts ourselves to use it as a staging area between our on-premises datacenter and our cloud installation."
"NetApp Private Storage is still integrated into the ISCSI connectivity and the FC protocol. I would recommend them to migrate to the FCIP because the SAN switches are moving further to an FCIP, and are scaling out of the ISCSI connectivity. Sooner or later, that will be an issue for NetApp Private Storage. An NFCIP should be available to them moving three years down the line."
"It is not the fastest storage solution."
"I would like to see the GUI management simplified in the next release."
"There is room for improvement in the support. It has been a problem for our team."
"The users find the new version's GUI complicated to use."
"There may actually be so many features that the end-user gets lost in the volume."
"The solution could improve by having better support experts. For example, they do not have clear instructions on configuration."
 

Pricing and Cost Advice

"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."
"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."
"The solution's licensing cost varies based on capacity and performance requirements."
"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."
"I always want things to be less expensive. However, I would say the pricing is fair. Their costs are in alignment with their competitors. It is a good value for the money."
"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."
"The price could be lower."
"We negotiate whatever deal we can get on the type of storage that it is, but it's totally under our control,."
"The price of NetApp Private Storage is similar to other solutions. There is typically an annual license required for this solution."
"NetApp Private Storage is cheaper here in India compared to other solutions, such as Dell."
"In general, I am pleased with the pricing, though it is a little high."
"The product is costly."
"It is an expensive solution."
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Manufacturing Company
10%
Financial Services Firm
9%
Healthcare Company
8%
Computer Software Company
13%
Financial Services Firm
11%
Manufacturing Company
8%
Educational Organization
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise17
Large Enterprise36
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise1
Large Enterprise7
 

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)?
It's considered between mid and high-end regarding. Dell usually knows how to position each model. If the customer wants something inexpensive, there's PowerVault. The system is marketed for mid-ra...
What needs improvement with Dell EMC PowerScale (Isilon)?
With every iteration of the OneFS system, new features are being added, and the UI is being updated here and there. So far, the system is adequate as a whole. Perhaps if there was a local chatbot b...
What do you like most about NetApp Private Storage?
NetApp is faster than other storage brands.
What is your experience regarding pricing and costs for NetApp Private Storage?
The product is costly. Also, we need to pay for features like SnapMirror, etc. I rate its pricing a nine out of ten.
What needs improvement with NetApp Private Storage?
NetApp is a great storage device, but sometimes support is not accessible. Also, the current version has removed most of the dashboard features. We have to use the CLI for some tasks. Additionally,...
 

Also Known As

PowerScale, Dell EMC Isilon
NPS
 

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,
ASE IT, Concerto Cloud
Find out what your peers are saying about Dell PowerScale (Isilon) vs. NetApp Private Storage and other solutions. Updated: September 2025.
868,759 professionals have used our research since 2012.