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Dell PowerScale 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
Ranking in NAS
1st
Average Rating
8.8
Reviews Sentiment
7.0
Number of Reviews
92
Ranking in other categories
File and Object Storage (2nd)
NetApp Private Storage
Ranking in NAS
11th
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 May 2026, in the NAS category, the mindshare of Dell PowerScale is 14.5%, down from 17.8% compared to the previous year. The mindshare of NetApp Private Storage is 2.8%, up from 1.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS Mindshare Distribution
ProductMindshare (%)
Dell PowerScale (Isilon)14.5%
NetApp Private Storage2.8%
Other82.7%
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 most valuable feature is its single space of storage."
"Overall, the hardware itself, and the OneFS file system, are the best selling points, combined with the delivery and the installation."
"The initial setup was easy because we received support from their partners, which enabled us to install it without difficulty."
"The fact that the business saw a noticeable improvement in performance the day we switched over was a game-changer, not to mention the ability to seamlessly swap out the nodes to move from the older Isilon platform to Dell PowerScale, with no data migration, making everything seamless, done behind the scenes, and users only noticing the jump in performance."
"The tool's most valuable features are high density and scalability."
"PowerScale helped free up our employees' time to focus on other business priorities. There are now automated jobs such as backing up and replicating data, that reduce the footprint we have. Those types of tasks were previously done manually."
"The flexibility and the user-friendly interface are the most valuable features."
"The solution can scale well; it has an automatic tiering system and you can have 60 petabytes of storage, offering very powerful scaling."
"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."
"The beauty is it's worth it."
"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."
"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."
"They have the scalability that we need, that we ask for, and I think it is a very, very good solution."
"We get our data faster and it's very reliable; we don't go down."
"The most valuable feature is integration."
"We feel that NetApp gave us a platform (base) which could clearly arrange all our files and volumes."
 

Cons

"It would be nice to see tools like Superna Eyeglass built into PowerScale."
"The management and monitoring tools comprise a disparate suite of products and the roadmap is very unclear. We've got four different products that look after the Isilon, management-wise, and it's a bit of a mess."
"The analytics could be improved."
"The product’s expansion capacity, pricing clarity, and ease of use need improvement."
"Backward compatibility is something Dell PowerScale (Isilon) could work on."
"The solution can be integrated with an automation system. Dell uses another framework developed in-house. They can integrate it with machines."
"The only thing that I think PowerScale could do better is improving the HTTP data access protocol. At the present, you cannot protect access to data via HTTP or HTTPS the same way that you can secure data access through other protocols like NFS or SMB[...]the Unified Permission Model that would allow a user to authenticate before being able to access a private file, does not apply."
"Because of the magic that it does 'under the hood,' it is very difficult to find out within the system where all your storage is going. That's a little bit of a ding that we have on it. It does so much magic in order to protect itself from drive failures or multiple drive failures, that it automatically handles the provisioning and storage of your data. But by doing that, finding out why a file of a certain size, or a directory of a certain size, is using more storage than is being reported in InsightIQ, is very difficult to discern."
"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 have the Active-Active feature. Some competitors, like Nutanix, already have it."
"There is room for improvement in the support. It has been a problem for our team."
"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."
"I think that it should work better with Microsoft solutions, more integrated with Microsoft. We also need integrated NAS and block storage."
"The one thing I've noticed with NetApp when you buy hardware and you can use it for a while and then you have to get new hardware."
"The solution could improve by having better support experts. For example, they do not have clear instructions on configuration."
"It is not the fastest storage solution."
 

Pricing and Cost Advice

"Our company finds the pricing high, but it decreases over time."
"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 only drawback for us is that it's a large upfront investment. This was a huge decision for a startup company to make. It took a bit for us to get over the line on it, but we have not regretted 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."
"The price of the solution can fluctuate. The price can be competitive or other times not. The price of the solution could be better."
"It is a really expensive solution."
"Dell PowerScale is an expensive solution compared to other products like Qumulo."
"We paid an additional fee to have Dell's ProDeploy Plus team implement it."
"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 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 product is costly."
"It is an expensive solution."
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business25
Midsize Enterprise23
Large Enterprise51
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise2
Large Enterprise7
 

Questions from the Community

What needs improvement with Dell EMC PowerScale (Isilon)?
I think Dell PowerScale (Isilon) could improve some functions such as Apache S3 or containerized storage support, as these aspects are not well-developed. Their support system is weak; many issues ...
What is your primary use case for Dell EMC PowerScale (Isilon)?
Our primary use cases include virtualization storage and external storage via NFS.
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 vs. NetApp Private Storage and other solutions. Updated: April 2026.
896,298 professionals have used our research since 2012.