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: February 2026).

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

8.8

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

File and Object Storage (2nd)

FreeNAS

Ranking in NAS

14th

Average Rating

8.4

Reviews Sentiment

7.2

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of February 2026, in the NAS category, the mindshare of Dell PowerScale (Isilon) is 15.4%, down from 17.6% compared to the previous year. The mindshare of FreeNAS is 3.1%, up from 2.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

NAS Market Share Distribution
Product	Market Share (%)
Dell PowerScale (Isilon)	15.4%
FreeNAS	3.1%
Other	81.5%

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.

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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's performance is good."

"I buy Dell PowerScale (Isilon) because of the price, service, and technology, and the technology that is particularly good for my company is that I have two Dell PowerScale (Isilon) systems in two sites, and I use replication between them with Superna software, which is a third-party Dell technology."

"Dell has the AI to protect the EMA."

"The capacity and scalability are what I appreciate the most about it; that was huge for us. We saw its benefits immediately after we started using it."

"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."

"I assess the stability and reliability of Dell PowerScale (Isilon) as perfect, as we haven't had any hiccups with it so far."

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

"What I appreciate about Dell PowerScale (Isilon) are its best features: it supports both file and object storage, and it is very easy to manage."

More Dell PowerScale (Isilon) pros

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

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

"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."

"The solution has been very stable so far."

"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."

"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."

"It has the best storage capacity."

Cons

"Dell PowerScale (Isilon) could be improved, particularly the UI, which could use some polishing as far as ease of use for the customer."

"It is a bit higher priced than some of the other systems."

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

"Sometimes, it takes too long to set up everything. That's something I would want them to improve."

"It would be nice to see tools like Superna Eyeglass built into PowerScale."

"Dell PowerScale's deployment is not easy."

"The solution’s interface and pricing could be improved."

"PowerScale is not suitable for virtual environments."

More Dell PowerScale (Isilon) cons

"FreeNAS should be better prepared for clustering."

"The support for S3 needs to be improved."

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

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

"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 should include clustering for the solution."

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

Pricing and Cost Advice

"The pricing is expensive, but I think it's a fair value because it does manage itself. It definitely is much simpler than any of the other scale-out storage platforms that we've looked at in the past."

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

"The pricing for this solution is reasonable."

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

"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."

"I always want things to be less expensive. However, I would say the pricing is fair. Their costs are in alignment with their competitors. It is a good value for the money."

More Dell PowerScale (Isilon) pricing and cost advice

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

"We use the free version of the program."

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

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

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Top Industries

By visitors reading reviews

Computer Software Company

11%

Manufacturing Company

11%

Financial Services Firm

Government

Comms Service Provider

15%

Performing Arts

12%

Computer Software Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	17
Midsize Enterprise	20
Large Enterprise	43

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)?

Regarding pricing, Isilon can be cost-efficient; if you are using more capacity nodes without needing more performance, it won't affect your budget much. However, multiple factors play a role in de...

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What needs improvement with Dell EMC PowerScale (Isilon)?

One downside of Dell PowerScale (Isilon) is that it is really complicated to configure. It is not something you can just sit down and do in an hour. It is time-consuming, and many companies that I ...

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Comparisons

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Dell ObjectScale vs Dell PowerScale (Isilon)

Compared 5% of the time

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Product Reports

Dell PowerScale (Isilon)

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Also Known As

PowerScale, Dell EMC Isilon

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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