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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
6.7
Number of Reviews
15
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.
Atilla Celiloglu - PeerSpot reviewer
Has supported continuous broadcasting with reliable performance and consistent operations
They can make more solutions for cloud integration in NetApp Private Storage. It should be easier to use the cloud S3 integration, maybe from a NetApp interface, where users can choose the type of storage before sending to S3. I would like to see more audit and performance logs via cloud integrations and ONTAP. Without the need for separate software.

Quotes from Members

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

Pros

"Dell PowerScale helps in saving costs related to power and rack space, reducing physical hardware from over one hundred to twenty-nine chassis."
"The most valuable feature of Dell PowerScale (Isilon) is all the capabilities together."
"Dell PowerScale's performance is good."
"The best thing is that it works. We don't have to maintain it too much; we usually upgrade once a year."
"The tool's most valuable features are high density and scalability."
"Certainly, we have seen return on investment and peace of mind, especially with our two clusters that are linked together, where one is a disaster recovery solution for the other."
"Its scalability has been huge for us."
"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."
"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 of NetApp Private Storage is out-of-the-box integration with the SAN switches. They are much easier compared to Dell solutions. Additionally, the connector that comes with the solution that allows connection back to the Cisco SAN switches is very good. In Dell, I would need to use an FCIP or CIP port that is required."
"The solution is stable."
"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."
"The solution scales well."
"As opposed to cloud, we have full control over security, use, who uses it. We own a number of different companies, so we can partition however we want."
"NetApp is faster than other storage brands."
 

Cons

"PowerScale is not suitable for virtual environments."
"Perhaps if there was a local chatbot built within the system or on the dashboard where we could directly ask for anything on the OneFS, it could help us."
"Additional metadata reporting would be great. We have to use a separate tool to report on that. We would like to view the age of data and how long it has been since someone has accessed a file."
"Dell PowerScale needs to reduce its price."
"The solution’s interface and pricing could be improved."
"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'd like to see more Iceland products in the cloud so that we can port our data into different environments if needed. I would also like to see a virtual appliance or software-defined Iceland product."
"The product’s expansion capacity, pricing clarity, and ease of use need improvement."
"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."
"I think that it should work better with Microsoft solutions, more integrated with Microsoft. We also need integrated NAS and block storage."
"I'm not sure how easy it is to use on the cloud versus on-prem. If they have different user experiences, they should work to make the two as similar as possible to make it easy for a user to understand both even if they only deal mainly with one."
"It is not the fastest storage solution."
"The hardware does not last as long as it could with new software."
"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."
"There may actually be so many features that the end-user gets lost in the volume."
 

Pricing and Cost Advice

"The solution's licensing cost varies based on capacity and performance requirements."
"The price of the solution can fluctuate. The price can be competitive or other times not. The price of the solution could be better."
"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."
"It is a really expensive solution."
"It is an expensive product with a high storage capacity suitable for large data requirements."
"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."
"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 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 price could be lower."
"In general, I am pleased with the pricing, though it is a little high."
"We negotiate whatever deal we can get on the type of storage that it is, but it's totally under our control,."
"The product is costly."
"The price of NetApp Private Storage is similar to other solutions. There is typically an annual license required for this solution."
"It is an expensive solution."
"NetApp Private Storage is cheaper here in India compared to other solutions, such as Dell."
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Manufacturing Company
11%
Financial Services Firm
9%
Government
8%
Computer Software Company
13%
Financial Services Firm
10%
Manufacturing Company
10%
Educational Organization
7%
 

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 Enterprise2
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)?
The cost is competitive with other vendors such as HP. I always compare prices between two vendors, and they are good in this situation.
What needs improvement with Dell EMC PowerScale (Isilon)?
Sometimes, it takes too long to set up everything. That's something I would want them to improve. The main challenge I face with it now is that my team is accustomed to using other vendors, and whe...
What needs improvement with NetApp Private Storage?
They can make more solutions for cloud integration in NetApp Private Storage. It should be easier to use the cloud S3 integration, maybe from a NetApp interface, where users can choose the type of ...
What is your primary use case for NetApp Private Storage?
It consists of a large production company and national television channels broadcasting 24/7. We wanted to choose a stable product with flawless SLA levels for an organization that broadcasts 24/7....
What advice do you have for others considering NetApp Private Storage?
I believe it will deliver the expected performance and stability for television channels and production studios. On a scale of 1-10, I rate NetApp Private Storage an 8.
 

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.
872,655 professionals have used our research since 2012.