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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

"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."
"The most valuable features of the solution are flexibility and ease of implementation."
"The most valuable feature of Dell PowerScale (Isilon) integration with other solutions because of the standard file system protocol."
"The most valuable feature of Dell PowerScale (Isilon) is all the capabilities together."
"Dell PowerScale (Isilon) stability is solid as a rock."
"What I like the most about Dell PowerScale (Isilon) is that the storage capacity is very high."
"Dell PowerScale (Isilon) is a platform that is very easy for teams to work with."
"The solution's scalability is very good."
"Very stable and very scalable."
"It gave us a platform which could clearly arrange all our files and volumes."
"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."
"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."
"Integration with other NetApp solutions and merging them is manageable."
"The solution is stable."
"Disaster recovery. And I like the security very much. I think they have the needed options for security. Can manage NPS using the same tools and process that we use today."
 

Cons

"It would be good to have synchronized mirroring between two clusters without using a third-party program."
"One downside of Dell PowerScale (Isilon) is that it is really complicated to configure."
"Improvements could be made on the object storage side."
"The solution can be a bit complex for those not well versed in the technology."
"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."
"My experience with customer service and technical support has been challenging. The reason is that it is difficult to find subject matter experts around the solution."
"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."
"Dell PowerScale (Isilon) could improve the load distribution capability. For example, in some cases, the system load is not distributed automatically on all the nodes but is concentrated only on one. You have a peak request on only one node and the others don't do anything."
"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."
"The users find the new version's GUI complicated to use."
"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 would like to see the GUI management simplified in the next release."
"I would like to have the Active-Active feature. Some competitors already have it. I would like NetApp to add it to stay competitive."
"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 solution could improve by having better support experts. For example, they do not have clear instructions on configuration."
"There is room for improvement in the support. It has been a problem for our team."
 

Pricing and Cost Advice

"The price of Dell PowerScale (Isilon) 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 pricing for this solution is reasonable."
"Dealing with the product costs and licensing areas is getting easier since Dell is simplifying the licensing process and licensing packages offered to users."
"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."
"Dell PowerScale is an expensive solution compared to other products like Qumulo."
"It is an expensive product with a high storage capacity suitable for large data 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."
"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."
"It is an expensive solution."
"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."
"In general, I am pleased with the pricing, though it is a little high."
"The price could be lower."
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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.
882,479 professionals have used our research since 2012.