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

7.0

Number of Reviews

Ranking in other categories

File and Object Storage (2nd)

NetApp Private Storage

Ranking in NAS

12th

Average Rating

8.6

Reviews Sentiment

6.7

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of April 2026, in the NAS category, the mindshare of Dell PowerScale (Isilon) is 14.8%, down from 17.8% compared to the previous year. The mindshare of NetApp Private Storage is 2.7%, up from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

NAS Mindshare Distribution
Product	Mindshare (%)
Dell PowerScale (Isilon)	14.8%
NetApp Private Storage	2.7%
Other	82.5%

NAS

Featured Reviews

Bill Engelmeyer

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.

Read full review

Atilla Celiloglu

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.

Read full review

Quotes from Members

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

Pros

"PowerScale, in our infrastructure, is really a winning piece because today we have three times the performance on the I/O at an affordable price while greatly improving the performance and reliability of our HPC storage."

"The solution is extremely easy to manage. This is its most valuable feature."

"Its scalability has been huge for us."

"The most valuable feature of the solution is its performance."

"The guaranteed performance, combined with the scalability through its scale-out capability, makes it an excellent choice."

"The major advantages include data protection, ransomware protection, and cloud capabilities, and the primary advantage is the ability to use the entire cluster in one unified file system, which is a feature I have not observed in other products."

"It's helpful that we're able to scale the number of nodes without having to build additional clusters."

"Dell PowerScale (Isilon) is scalable, it is easy to expand capacity, and the solution is suitable for companies with a lot of data."

More Dell PowerScale (Isilon) pros

"The solution scales well."

"The beauty is it's worth it."

"We feel that NetApp gave us a platform (base) which could clearly arrange all our files and volumes."

"If your company has the budget for NetApp Private Storage I would recommend it."

"The most valuable feature is integration."

"Its flexibility and ability to configure volumes is its most valuable aspect; I have no problem configuring the product for different kinds of use cases and configuring throughput or configuring some kind of logical volumes and so on."

"NetApp has its own dedicated operating system, so it will not be affected by any wireless piggybacking or malware."

"The solution is stable."

More NetApp Private Storage pros

Cons

"The legacy file system for Epsilon didn't scale into the cloud and didn't have a separate OS. It would be key if this was made possible."

"Pricing is an issue. It's quite expensive for the amount of storage we have."

"I think Dell PowerScale (Isilon) can be improved, as the cost models are quite expensive for administration."

"The only thing that I think PowerScale could do better is improving the HTTP data access protocol."

"If I could improve one thing on Dell PowerScale (Isilon), it would be better object storage as it recently breached into S3, and that capability could be broadened."

"The price of the solution could be reduced."

"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 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."

More Dell PowerScale (Isilon) cons

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

"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."

"There is room for improvement in the support. It has been a problem for our team."

"I would like to have the Active-Active feature. Some competitors, like Nutanix, already have it."

"It is not the fastest storage solution."

"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."

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

"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."

More NetApp Private Storage cons

Pricing and Cost Advice

"It is a really expensive solution."

"This solution is priced slightly higher than others on the market but does offer good quality. With this solution's data reduction and compression, we were able to purchase less. Costs have dropped because of the data rate of compression and deduplication."

"Dell PowerScale is expensive on the start-up side but we can recoup those costs quickly by not having to reapply the savings to other equipment."

"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."

"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."

"Dealing with the product costs and licensing areas is getting easier since Dell is simplifying the licensing process and licensing packages offered to users."

More Dell PowerScale (Isilon) pricing and cost advice

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

"The price could be lower."

"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 product is costly."

"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

Manufacturing Company

11%

Computer Software Company

Financial Services Firm

Government

Financial Services Firm

11%

Manufacturing Company

Construction Company

Computer Software Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	19
Midsize Enterprise	20
Large Enterprise	46

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	2
Large Enterprise	7

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)?

As I mentioned before, we did not purchase Dell PowerScale (Isilon) directly. Since our organization is a government entity, the country policy does not allow direct purchases; it goes through a fo...

What needs improvement with Dell EMC PowerScale (Isilon)?

I have experienced a RAM failure in some of the nodes of Dell PowerScale (Isilon), and that required hardware replacement. For large file replication from site to site, it takes a long time. This l...

What needs improvement with NetApp Private Storage?

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.

NetApp FAS Series vs Dell PowerScale (Isilon)

Comparisons

Compared 19% of the time

Everpure FlashBlade vs Dell PowerScale (Isilon)

Compared 10% of the time

Qumulo vs Dell PowerScale (Isilon)

Compared 6% of the time

VAST Data vs Dell PowerScale (Isilon)

Compared 4% of the time

NetApp StorageGRID vs Dell PowerScale (Isilon)

Compared 2% of the time

More Dell PowerScale (Isilon) Competitors

NetApp FAS Series vs NetApp Private Storage

Compared 12% of the time

QNAP NAS Storage vs NetApp Private Storage

Compared 11% of the time

FreeNAS vs NetApp Private Storage

Compared 9% of the time

Qumulo vs NetApp Private Storage

Compared 8% of the time

Hitachi NAS Platform vs NetApp Private Storage

Compared 8% 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 PowerScale leads in unstructured data management with unified file and object storage, massive scalability, security, and cloud adaptability, enhancing AI, analytics, and enterprise applications with exceptional performance and resilience.

Dell PowerScale Isilon provides a comprehensive platform for unstructured data, excelling in scalability, management, and performance. With features like single-pane management, SyncIQ, and SmartQuotas, it handles large datasets with flexibility and robust security. Its multi-protocol support and seamless expansion improve operational efficiency. While it offers strong data protection, enhancements in cloud integration, cybersecurity, and performance are sought. Users note potential for cost reductions and streamlined configurations and mention desired improvements in object storage handling and NFS support.

What are the key features of Dell PowerScale Isilon?

Single-pane management: Simplifies data control and monitoring through a unified interface.
SyncIQ: Ensures efficient data replication for business continuity.
SmartQuotas: Provides intelligent quota management for optimized storage allocation.
Multi-protocol support: Facilitates cross-platform data access and integration.
Seamless storage expansion: Allows effortless scaling to accommodate growing data needs.

What benefits should users consider when reviewing Dell PowerScale Isilon?

Operational efficiency: Reduces workload with easy management and automation.
Enhanced security: Offers comprehensive data protection and recovery options.
Scalability: Supports large-scale data storage with flexible growth capabilities.
Performance: Delivers high-speed data processing for demanding applications.
Integration flexibility: Adapts to on-prem and hybrid cloud environments for diverse deployment needs.

Organizations across industries utilize Dell PowerScale Isilon for large-scale unstructured storage, supporting applications like video archiving, genomic data storage, and high-resolution imaging. Educational institutions, research centers, and media enterprises rely on its scaled-out storage capabilities, providing centralized, secure storage for diverse applications in hybrid, cloud, and on-prem environments.

Dell Technologies

NetApp Private Storage provides efficient, cost-controlled storage solutions with fast, seamless cloud integration, ensuring robust security and scalability for diverse applications.

NetApp Private Storage integrates smoothly with cloud platforms like Azure or AWS, offering a unified approach to storage through the ONTAP operating system. With SAN integration, disaster recovery, and strong security measures, it supports scalability and diverse use cases. Users appreciate its effective backup solutions and reliability, enhanced by Snapshot functionality. However, enhanced cloud integration tools and user-friendly interface improvements are desired. Users often confront configuration complexity and support access issues, along with costly upgrade cycles due to hardware limitations.

What are the key features of NetApp Private Storage?

ONTAP Operating System: Facilitates unified storage management across platforms.
Integration Capabilities: Ensures seamless connections with cloud providers like AWS and Azure.
Disaster Recovery: Provides robust options to safeguard data.
Security Measures: Offers strong protection against potential threats.
Scalability: Easily adapts to growing storage demands.

What benefits should users consider?

Cost Control: Allows efficient management of storage expenses.
Ease of Use: Simplifies complex storage management tasks.
Speed: Enhances data processing and access times.
Reliability: Ensures consistent performance across applications.
Flexibility: Adapts to a variety of storage environments and needs.

NetApp Private Storage is employed in industries requiring robust storage solutions, supporting OpenStack cloud backends, VMware environments, and media broadcasts. It aids in database server replication and hybrid flash storage, managing marketing data and facilitating ESXi backend solutions through NFS shares, SnapMirror, and file replication. Recognized for simplifying storage management and connectivity, it efficiently supports demanding applications across sectors.

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