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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
66
Ranking in other categories
File and Object Storage (3rd)
NetApp Private Storage
Ranking in NAS
15th
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
14
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2025, in the NAS category, the mindshare of Dell PowerScale (Isilon) is 16.2%, down from 17.5% compared to the previous year. The mindshare of NetApp Private Storage is 2.0%, 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)16.2%
NetApp Private Storage2.0%
Other81.8%
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.
Christopher Cagayan - PeerSpot reviewer
Works efficiently for customized data storage and has good technical support services
We had five downtimes in one year. Our storage is highly utilized, but when I checked VMware, we only used a fraction of that capacity. There is a difference in utilization between VMware and the storage devices. The NetApp support team explained that we need to enable a feature to make the data store utilization consistent with the VMware utilization. They said that the difference in utilization is likely due to the location of the data store. I rate its stability a six out of ten.

Quotes from Members

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

Pros

"It has allowed us to have more consistent quality controls. It has also allowed us to expand the number of servers in clients processing and accessing data, allowing us to get a lot bigger projects out the door."
"The most valuable feature is its single space of storage."
"The technical support has been excellent. I would give them a ten out of ten for support."
"This is the best platform that we could have for storage utilization. It is affordable and scalable. At the end of the day, it's something that we find very easy to use."
"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."
"The solution's scalability is very good."
"Dell PowerScale (Isilon) definitely deserves ten out of ten for scalability."
"The product's scalability feature is super easy to use."
"At the moment, we are extensively using SnapMirror."
"Very stable and very scalable."
"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 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."
"The solution scales well."
"Integration with other NetApp solutions and merging them is manageable."
 

Cons

"Dell PowerScale can improve on its multi-tenant part because as a service provider, we have bigger clusters in data centers where we can serve multiple customers and grant them dedicated management points and automation features that can be managed in a multi-tenant environment."
"I would make Dell PowerScale (Isilon) better by improving SmartSync in the graphical user interface. Currently, everything has to be done through the command line, and I prefer having a graphical interface."
"The improvement should be in AI. Everything is going towards AI."
"Dell PowerScale (Isilon) is a bit expensive compared to other products."
"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."
"We used to have a chat feature available on the support site. It's not available to us anymore."
"The price always has room for improvement."
"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."
"There is room for improvement in the support. It has been a problem for our team."
"I would like to see the GUI management simplified in the next release."
"It is not the fastest storage solution."
"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."
"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."
"There may actually be so many features that the end-user gets lost in the volume."
"The users find the new version's GUI complicated to use."
"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."
 

Pricing and Cost Advice

"The pricing for this solution is reasonable."
"It is an expensive solution."
"Dell PowerScale is an expensive solution compared to other products like Qumulo."
"The solution is expensive; it is not the cheapest solution out there. If you look at it from a total cost of ownership perspective, then it is a very compelling solution. However, if you're looking at just dollar per terabyte and not looking at the big picture, then you could be distracted by the price. It is not an amazing price, but it's pretty good. It is also very good when you consider the total cost of ownership and ease of management."
"It is a really expensive solution."
"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 price of the solution is high."
"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."
"In general, I am pleased with the pricing, though it is a little high."
"The product is costly."
"We negotiate whatever deal we can get on the type of storage that it is, but it's totally under our control,."
"It is an expensive solution."
"The price could be lower."
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Manufacturing Company
10%
Financial Services Firm
9%
Healthcare Company
8%
Computer Software Company
11%
Financial Services Firm
11%
Manufacturing Company
8%
University
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise17
Large Enterprise35
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise1
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)?
It's considered between mid and high-end regarding. Dell usually knows how to position each model. If the customer wants something inexpensive, there's PowerVault. The system is marketed for mid-ra...
What needs improvement with Dell EMC PowerScale (Isilon)?
With every iteration of the OneFS system, new features are being added, and the UI is being updated here and there. So far, the system is adequate as a whole. Perhaps if there was a local chatbot b...
What do you like most about NetApp Private Storage?
NetApp is faster than other storage brands.
What is your experience regarding pricing and costs for NetApp Private Storage?
The product is costly. Also, we need to pay for features like SnapMirror, etc. I rate its pricing a nine out of ten.
What needs improvement with NetApp Private Storage?
NetApp is a great storage device, but sometimes support is not accessible. Also, the current version has removed most of the dashboard features. We have to use the CLI for some tasks. Additionally,...
 

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.
867,349 professionals have used our research since 2012.