Dell PowerScale (Isilon) vs NetApp Private Storage comparison

Dell PowerScale (Isilon) vs. NetApp Private Storage

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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

1st

Average Rating

8.8

Reviews Sentiment

7.5

Number of Reviews

Ranking in other categories

File and Object Storage (3rd)

NetApp Private Storage

Ranking in NAS

16th

Average Rating

8.6

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of April 2025, in the NAS category, the mindshare of Dell PowerScale (Isilon) is 17.8%, up from 17.2% compared to the previous year. The mindshare of NetApp Private Storage is 1.3%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

NAS

Featured Reviews

Eric Burgueño

High-Performance Computing Services Manager at The New Zealand Institute for Plant and Food Research Limited

Simplified data management, tremendously reducing our users’ cognitive overhead

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. You can either access a file because it can be access by anyone in the organization, or you cannot at all. There is no in-between. HTTP is not considered a first-class data access protocol, so the Unified Permission Model that would allow a user to authenticate before being able to access a private file, does not apply. However, with the recent introduction of S3 starting from OneFS 9, I believe the necessary plumbing is already there for HTTPS to also be elevated to a first-class protocol in the future because both protocols sit behind a web server under the hood. It does not sound like it would be too complicated to implement, but it would be a valuable feature and it is currently missing.

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Pramod-Talekar

Sr Service Engineer at Evolent Health

Well-suited for virtualized environments and highly stable solution

We are in a VMware Intra environment, so we are utilizing NetApp Storage for our virtualization infrastructure NetApp offers multiple features that we utilize for our projects. At the moment, we are extensively using SnapMirror Flex. There is room for improvement in the support. It has been a…

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Quotes from Members

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

Pros

"The solution's most valuable features are scalability and flexibility."

"The single pane of glass for both IT and for the end-user is a valuable feature. On the IT side, I can actually control where things are stored, whether something is stored on solid-state drives or spinning drives... The single pane of glass makes it very easy to use and very easy to understand. We started at 100 terabytes and we moved to 250 and it still feels like the exact same system and we're able to move data as needed."

"It is stable and very user-friendly."

"It assists with eliminating storage silos because it provides SMB and NFS protocols. PowerScale has also helped free up our employee's time to focus on other business priorities."

"There are also the policies that you set up on replication and purging files, and policies for something called WORM. That's a "write once, read many," where you can't overwrite certain files or certain data. It puts them in a "protected mode" where it becomes very difficult for someone to accidentally delete. We use that for certain files or certain directories, because we're dealing with video and some video has to be protected for chain-of-custody purposes. The WORM feature works great."

"Features like ransomware protection, file lock retention, and third-party integrations (e.g., Superna for ransomware protection) are significant benefits."

"We use the solution internally to support our own managed servers and run our own support center."

"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."

More Dell PowerScale (Isilon) pros

"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."

"Very stable and very scalable."

"It gave us a platform which could clearly arrange all our files and volumes."

"At the moment, we are extensively using SnapMirror."

"The solution is stable."

"NetApp is faster than other storage brands."

"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."

"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."

More NetApp Private Storage pros

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."

"Improvements could be made to reduce the costs and the high level of knowledge needed to maintain and use them."

"Dell's customer service needs 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."

"Data storage performance needs to be improved."

"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."

"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 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."

More Dell PowerScale (Isilon) cons

"It is not the fastest storage solution."

"There may actually be so many features that the end-user gets lost in the volume."

"The solution could improve by having better support experts. For example, they do not have clear instructions on configuration."

"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."

"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 have the Active-Active feature. Some competitors already have it. I would like NetApp to add it to stay competitive."

"The users find the new version's GUI complicated to use."

More NetApp Private Storage cons

Pricing and Cost Advice

"The pricing for this solution is reasonable."

"Price was also a significant factor in our decision to go with PowerScale. The team at EMC, now Dell EMC, came through with a highly competitive offer that tipped the scales towards their solution. There was only one other solution around the same price point, but it could not match PowerScale on features. That other solution is no longer on the market."

"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."

"Our company finds the pricing high, but it decreases over time."

"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."

"Dell PowerScale (Isilon) is an expensive solution."

"The price of Dell PowerScale (Isilon) is reasonable."

"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."

More Dell PowerScale (Isilon) pricing and cost advice

"It is an expensive solution."

"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."

"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."

"The product is costly."

"In general, I am pleased with the pricing, though it is a little high."

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Top Industries

By visitors reading reviews

Educational Organization

23%

Computer Software Company

11%

Manufacturing Company

Financial Services Firm

Computer Software Company

24%

Real Estate/Law Firm

15%

Financial Services Firm

14%

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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)?

Every time we purchase a PowerScale solution, we buy four nodes for one data center and four for another, with five years of maintenance covered by Dell. It's a high-cost offering amounting to thre...

What needs improvement with Dell EMC PowerScale (Isilon)?

Dell's customer service needs improvement. Specifically, hardware failures under warranty should be addressed within the promised timeline. I face difficulty in tracing and finding the right suppor...

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,...

NetApp FAS Series vs Dell PowerScale (Isilon)

Comparisons

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Compared 13% of the time

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Compared 11% of the time

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Compared 9% of the time

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Compared 7% of the time

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NetApp FAS Series vs NetApp Private Storage

Compared 32% of the time

Qumulo vs NetApp Private Storage

Compared 23% of the time

More NetApp Private Storage Competitors

Product Reports

Dell PowerScale (Isilon)

Download Dell PowerScale (Isilon) product report

NetApp Private Storage

Download NetApp Private Storage product report

Also Known As

PowerScale, Dell EMC Isilon

NPS

Overview

Dell EMC PowerScale (Isilon) storage solutions are designed to help manage data for enterprises of all types. Dell PowerScale systems are simple to install, manage, and scale to virtually any size and include a choice of all-flash, hybrid, or archive nodes. Dell PowerScale solutions stay flexible and reliable no matter how much storage capacity is added, how much performance is required, or how business needs change in the future.

With Dell PowerScale, your data lake always stays simple to manage, simple to grow, simple to protect, and simple enough to handle the most demanding current and future workloads.

Ideal for companies of any size, from small enterprises to multi-national ones, Dell PowerScale storage provides secure collaboration, modular scalability, flexible consumption models, and easy cloud integrations, all with management tools spanning multiple platforms.

Key Benefits of Dell EMC PowerScale Storage

Centralized management: Manage your storage infrastructure from a single unified platform.
Data protection: Dell PowerScale offers security, data protection and replication tools. Back up and protect your data from cyber-attacks with an integrated ransomware defense system.
Artificial intelligence: PowerScale is the foundation for building an integrated and optimized IT infrastructure for AI projects, from concept to production.
Cloud support: Store and manage your data on the cloud and move data between your data center and the cloud. Dell PowerScale runs data-intensive cloud workloads with no outbound traffic costs.
Long-term storage: Dell PowerScale offers highly efficient and resilient active archive storage or long-term data retention for large-scale data archives. With the proven scalability architecture of PowerScale, you can meet your growing archiving demands. Dell PowerScale has a wide variety of enterprise-grade data protection and security options to keep your archived data safe.

Reviews from Real Users

Dell EMC PowerScale storage stands out among its competitors for a number of reasons. Two major ones are its scalability capabilities and its user-friendly centralized management system.

Rachel B., a chief operations officer & acting CFO at Like a Photon, writes, "PowerScale allows us to manage storage without managing RAID groups or migrating volumes between controllers. It has really simplified things. We're not having to worry about the underlying infrastructure. That takes care of itself. We just worry about the data. It's really easy for deploying and managing storage at the petabyte scale."

Keith B., the director of IT at NatureFresh Farms, writes, "The single pane of glass for both IT and for the end-user is a valuable feature. On the IT side, I can actually control where things are stored, whether something is stored on solid-state drives or spinning drives... The single pane of glass makes it very easy to use and very easy to understand. We started at 100 terabytes, and we moved to 250 and it still feels like the exact same system and we're able to move data as needed."

Dell Technologies

NetApp Private Storage (NPS) for Cloud is a family of enterprise storage solutions that lets you use multiple industry-leading clouds and maintain complete control over your data on dedicated storage systems from NetApp.

NetApp

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

Dell PowerScale (Isilon) vs. NetApp Private Storage