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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

"What I like the most about Dell PowerScale (Isilon) is that the storage capacity is very high."
"Dell PowerScale (Isilon) stability is solid as a rock."
"The solution is stable."
"The most valuable feature for me is SyncIQ."
"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."
"With Dell PowerScale (Isilon), it uses not just a terabyte but petabytes of data, storing a large amount of data takes within minutes, and you can bring it down to seconds as well, as it does not take much time to upload or copy the data here and there, and upgrades also do not take much time."
"The reliability and stability of Dell PowerScale (Isilon) is good, with no downtime."
"Its most valuable feature is the DR capabilities replication."
"NetApp is faster than other storage brands."
"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."
"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."
"At the moment, we are extensively using SnapMirror."
"Very stable and very scalable."
"The solution scales well."
"It gave us a platform which could clearly arrange all our files and volumes."
"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."
 

Cons

"I think Dell PowerScale (Isilon) can be improved, as the cost models are quite expensive for administration."
"It is a bit higher priced than some of the other systems."
"It would be good to have synchronized mirroring between two clusters without using a third-party program."
"The deployment of Dell PowerScale (Isilon) is not really complex but depends on the hardware deployment."
"The solution can be integrated with an automation system. Dell uses another framework developed in-house. They can integrate it with machines."
"The tool's support team and the way the cases are handled by the product's technical support team are both areas of concern where improvements are required."
"Dell's customer service needs improvement. Specifically, hardware failures under warranty should be addressed within the promised timeline."
"Isilon has limitations on the number of files that can be generated."
"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."
"The users find the new version's GUI complicated to use."
"It is not the fastest storage solution."
"I would like to have the Active-Active feature. Some competitors already have it. I would like NetApp to add it to stay competitive."
"There may actually be so many features that the end-user gets lost in the volume."
"I would like to see the GUI management simplified in the next release."
"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."
 

Pricing and Cost Advice

"Pricing for this solution is reasonable."
"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."
"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 solution's licensing cost varies based on capacity and performance requirements."
"The price of Dell PowerScale (Isilon) is reasonable."
"The price of the solution is high."
"The pricing is excellent."
"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."
"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 could be lower."
"It is an expensive solution."
"NetApp Private Storage is cheaper here in India compared to other solutions, such as Dell."
"The price of NetApp Private Storage is similar to other solutions. There is typically an annual license required for this solution."
"In general, I am pleased with the pricing, though it is a little high."
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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.
882,606 professionals have used our research since 2012.