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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
8.8
Reviews Sentiment
7.1
Number of Reviews
78
Ranking in other categories
File and Object Storage (2nd)
NetApp Private Storage
Ranking in NAS
13th
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 February 2026, in the NAS category, the mindshare of Dell PowerScale (Isilon) is 15.4%, down from 17.6% compared to the previous year. The mindshare of NetApp Private Storage is 2.4%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS Market Share Distribution
ProductMarket Share (%)
Dell PowerScale (Isilon)15.4%
NetApp Private Storage2.4%
Other82.2%
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.
Atilla Celiloglu - PeerSpot reviewer
Broadcast Technology Director at tv8
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

"It's easy to manage. The web UI is very intuitive, and there's CLI also that you can use to manage it."
"The tool's most valuable features are high density and scalability."
"Its scalability has been huge for us."
"The most valuable feature for me is SyncIQ."
"Dell PowerScale's performance is good."
"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."
"It is stable and very user-friendly."
"The guaranteed performance, combined with the scalability through its scale-out capability, makes it an excellent choice."
"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."
"NetApp is faster than other storage brands."
"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."
"The solution scales well."
"It gave us a platform which could clearly arrange all our files and volumes."
"Very stable and very scalable."
"The solution is stable."
"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."
 

Cons

"Some improvements to the NFS support would be of interest to us."
"Sometimes, it takes too long to set up everything. That's something I would want them to improve."
"They should add some new services that should be for on-premises, and more analytics should be there for the data, allowing for a deep dive from that analytics, which is currently missing."
"Dell's customer service needs improvement. Specifically, hardware failures under warranty should be addressed within the promised timeline."
"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."
"The support offered by the product is an area of concern where improvements are required."
"The solution isn't suitable for small environments or small customers."
"One downside of Dell PowerScale (Isilon) is that it is really complicated to configure."
"I think that it should work better with Microsoft solutions, more integrated with Microsoft. We also need integrated NAS and block storage."
"There is room for improvement in the support. It has been a problem for our team."
"The hardware does not last as long as it could with new software."
"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."
"They need a little more technical people in Akola. Most of the NetApp people are in Bangalore, Mumbai, or Delhi, but there are very few in Akola. I think NetApp has few technicians in Akola because they mostly rely on partners to service this area."
"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."
"I would like to see the GUI management simplified in the next release."
"The users find the new version's GUI complicated to use."
 

Pricing and Cost Advice

"It is an expensive solution."
"The price of Dell PowerScale (Isilon) is reasonable."
"We paid an additional fee to have Dell's ProDeploy Plus team implement it."
"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."
"Dealing with the product costs and licensing areas is getting easier since Dell is simplifying the licensing process and licensing packages offered to users."
"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."
"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."
"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,."
"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 price of NetApp Private Storage is similar to other solutions. There is typically an annual license required for this solution."
"The product is costly."
"It is an expensive solution."
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise20
Large Enterprise44
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)?
Regarding pricing, Isilon can be cost-efficient; if you are using more capacity nodes without needing more performance, it won't affect your budget much. However, multiple factors play a role in de...
What needs improvement with Dell EMC PowerScale (Isilon)?
One downside of Dell PowerScale (Isilon) is that it is really complicated to configure. It is not something you can just sit down and do in an hour. It is time-consuming, and many companies that I ...
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: February 2026.
882,594 professionals have used our research since 2012.