Dell PowerScale (Isilon) vs FreeNAS comparison

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Dell PowerScale (Isilon)

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Executive SummaryUpdated on Nov 7, 2024

FreeNAS and Dell PowerScale compete in the network-attached storage category. Dell PowerScale appears to have the upper hand due to its enhanced scalability and enterprise features, appealing to large-scale environments.

Features: FreeNAS is appreciated for its support of the ZFS file system, data protection features, and flexibility in hardware deployment. Dell PowerScale offers advanced data management, seamless scalability, and high-performance tuning options suitable for significant storage demands.

Room for Improvement: FreeNAS could improve in terms of their user interface design, automated updates, and increasing official support options. Dell PowerScale might enhance integration with lower-tier storage solutions, reduce hardware costs, and provide better licensing transparency.

Ease of Deployment and Customer Service: FreeNAS is known for its straightforward setup on diverse hardware and a supportive community, although it may necessitate more technical expertise. Dell PowerScale is favored for its smooth integration processes and comprehensive support services, easing enterprise-level deployments.

Pricing and ROI: FreeNAS presents an economical setup due to its open-source nature, promising substantial ROI for smaller deployments. Dell PowerScale demands higher initial investment but offers long-term value and performance, appealing to enterprises with larger financial plans aiming for extended returns.

To learn more, read our detailed Dell PowerScale (Isilon) vs. FreeNAS Report (Updated: September 2025).

Dell PowerScale (Isilon) vs. FreeNAS

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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

2nd

Average Rating

9.0

Reviews Sentiment

7.4

Number of Reviews

Ranking in other categories

File and Object Storage (3rd)

FreeNAS

Ranking in NAS

16th

Average Rating

8.4

Reviews Sentiment

7.2

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of October 2025, in the NAS category, the mindshare of Dell PowerScale (Isilon) is 16.5%, down from 17.1% compared to the previous year. The mindshare of FreeNAS is 2.0%, down from 2.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

NAS Market Share Distribution
Product	Market Share (%)
Dell PowerScale (Isilon)	16.5%
FreeNAS	2.0%
Other	81.5%

NAS

Featured Reviews

Scott Taylor

Senior Infrastructure Specialist at a healthcare company with 10,001+ employees

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.

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Vincenzo D'Aniello

Software developer at TREXON S.R.L.

Open-source with great disk management and task synchronization

The system itself allows you to add any feature. The only bad thing is that this maybe depends on FreeBSD, and sometimes finding documentation is difficult. For example, we knew that previous versions automatically enabled the Linux kernel, yet with the recent version, this was no longer the case. Now, there was the possibility of being able to create Debian-based jails, and finding the documentation was not easy or fast. That said, in the end, we succeeded. If you find the documentation, it is always incomplete and fragmented.

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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

"Dell PowerScale (Isilon) definitely deserves ten out of ten for scalability."

"The tool's most valuable features are high density and scalability."

"The technical support has been excellent. I would give them a ten out of ten for support."

"The tool comes with cheap disks and works fast for video content."

"The tool's most valuable features are scalability and stability."

"For maximizing storage utilization, PowerScale is great. When you write the data to it, it spreads it out to all the nodes, so you get all the performance from the entire pool."

"On a scale of one to ten, with one being worst and ten being best, I would rate Dell PowerScale (Isilon) a ten."

"The most valuable feature we started using, beyond the initial scope for the solution, is the multi-protocol system that allows you to access the same set of files using different network protocols like NFS or SMB. PowerScale’s Unified Permission Model ensures that data security and access permissions are honoured regardless of whether the client is a Windows desktop or a Linux server"

More Dell PowerScale (Isilon) pros

"FreeNAS is much simpler and easier to use than other solutions, but we don't have the complete range of features that come with the full version."

"The ease of use of the 'jail', the management of backups, and copies to easily create test and pre-production scenarios have speeded up the development and distribution of business apps."

"It integrates well into either Windows or Linux environments."

"What I like about it is that I can work on it from any computer or any device. The initial setup is very simple. The setup wizard is really helpful."

"Its stability is the most valuable. It is reliable, and we don't have to worry too much about it."

"The solution has been very stable so far."

"It has the best storage capacity."

Cons

"We used to have a chat feature available on the support site. It's not available to us anymore."

"I would like to see increased reporting and statistics functionalities."

"The product needs to improve CLI since commands are complex. The search option is also difficult since you must give the full path."

"Dell PowerScale needs to reduce its price."

"They could improve implementation, as we had to rack and stack it ourselves."

"Improvements could be made on the object storage side."

"Additional metadata reporting would be great. We have to use a separate tool to report on that. We would like to view the age of data and how long it has been since someone has accessed a file."

"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."

More Dell PowerScale (Isilon) cons

"The support for S3 needs to be improved."

"If you find the documentation, it is always incomplete and fragmented."

"The one thing that I find difficult to do which is very time-consuming is that I like to have a backup of the important files."

"They can improve the integration with PSA systems. This functionality could be better."

"The latest version of the dashboard doesn't work as good as the previous version."

"FreeNAS should be better prepared for clustering."

"They should include clustering for the solution."

Pricing and Cost Advice

"Dell PowerScale is an expensive solution compared to other products like Qumulo."

"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."

"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."

"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 is a really expensive solution."

"It is an expensive product with a high storage capacity suitable for large data requirements."

"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."

"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."

More Dell PowerScale (Isilon) pricing and cost advice

"Its licensing cost is based on the hardware capacity."

"For our configuration, we pay a little bit less than €10,000 ($12,000 USD) per year."

"We use the free version of the program."

"Its price is okay. It suits our needs."

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Top Industries

By visitors reading reviews

Computer Software Company

13%

Manufacturing Company

10%

Financial Services Firm

Healthcare Company

Comms Service Provider

14%

Performing Arts

14%

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	16
Midsize Enterprise	17
Large Enterprise	36

By reviewers
Company Size	Count
Small Business	7
Large Enterprise	2

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.

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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...

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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...

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Comparisons

NetApp FAS Series vs Dell PowerScale (Isilon)

Compared 16% of the time

Pure Storage FlashBlade vs Dell PowerScale (Isilon)

Compared 11% of the time

Qumulo vs Dell PowerScale (Isilon)

Compared 9% of the time

Dell ObjectScale vs Dell PowerScale (Isilon)

Compared 8% of the time

HPE StoreEasy vs Dell PowerScale (Isilon)

Compared 6% of the time

More Dell PowerScale (Isilon) Competitors

QNAP NAS Storage vs FreeNAS

Compared 19% of the time

StarWind Storage Appliance vs FreeNAS

Compared 18% of the time

HPE StoreEasy vs FreeNAS

Compared 15% of the time

Qumulo vs FreeNAS

Compared 15% of the time

NetApp FAS Series vs FreeNAS

Compared 14% of the time

More FreeNAS Competitors

Product Reports

Dell PowerScale (Isilon)

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Also Known As

PowerScale, Dell EMC Isilon

No data available

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

FreeNAS is an operating system that can be installed on virtually any hardware platform to share data over a network. FreeNAS is the simplest way to create a centralized and easily accessible place for your data. Use FreeNAS with ZFS to protect, store, backup, all of your data. FreeNAS is used everywhere, for the home, small business, and the enterprise.

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,

Morroni Technologies Inc., Creative Integrations

Dell PowerScale (Isilon) vs. FreeNAS