Dell PowerScale (Isilon) vs Qumulo comparison

Dell Technologies and Qumulo are both solutions in the NAS category. Dell Technologies is ranked #2 with an average rating of 8.8, while Qumulo is ranked #11. Additionally, 96% of Dell Technologies users are willing to recommend the solution, compared to 100% of Qumulo users who would recommend it.

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Executive SummaryUpdated on Nov 4, 2024

Dell PowerScale (Isilon) and Qumulo compete in providing scalable storage solutions. Dell PowerScale (Isilon) is noted for its strong support and competitive pricing, while Qumulo is recognized for its superior innovative features.

Features: Dell PowerScale (Isilon) is praised for its robust scalability, seamless integration capabilities, and strong financial value. It is renowned for its reliable performance and ability to integrate with other solutions. Qumulo stands out with its enhanced data analytics, real-time visibility, and data-driven decision-making capabilities.

Room for Improvement: Dell PowerScale (Isilon) can enhance its ease of deployment and reduce technical resources needed for traditional processes. There's room to streamline its feature updates and documentation. Qumulo's pricing can be a hurdle, requiring cost reductions or more accessible pricing structures. It may benefit from improved failover capabilities and enhanced customer engagement.

Ease of Deployment and Customer Service: Qumulo is praised for its simplicity and efficiency in deployment, supported by expert customer service. Dell PowerScale (Isilon) follows a more traditional deployment process, offering comprehensive customer support that's well-regarded.

Pricing and ROI: Dell PowerScale (Isilon) offers competitive pricing with a satisfactory ROI due to its balanced feature set. In contrast, Qumulo's premium pricing reflects its advanced features, justifying a high return on investment for those leveraging its capabilities.

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

Buyer's Guide

Dell PowerScale (Isilon) vs. Qumulo

September 2025

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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

Pure Storage FlashBlade

Featured Reviews

Parul-Patel

Senior Network Engineer at Holy Redeemer Health System, Inc.

High performance and throughput enhance IT backup management

The multi-dimensional scale-out design feature of Pure Storage FlashBlade is not in use in our environment. Regarding data reduction technologies, we don't get much deduplication because the data is already deduplicated from our FlashArray before we get to backup, so there is no benefit of deduplication. Regarding the integration with cloud-native ecosystem tools, we are not on cloud; we are strictly an on-premises solution. Pure Storage FlashBlade is not used by any end-user; it's used only for IT backup, with only about four people in our group managing it. I cannot recommend Pure Storage FlashBlade to other users depending upon their financial situation because it's an expensive solution, and the cost is very high, including licensing and renewal every year. I rate Pure Storage FlashBlade an eight out of ten.

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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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VinceVitro

Senior Storage Architect at a healthcare company with 1,001-5,000 employees

Useful data sharing, simple cluster scaling, and excellent support

One aspect of Qumulo that I hoped to see improved was its software upgrade process, which did see significant progress during my usage. Initially, upgrading the software resulted in several minutes of system downtime. However, by the time I departed last summer, the downtime had reduced to mere ten seconds. Although I am unsure if Qumulo has yet achieved a completely outage-free upgrade, I simply performed the upgrades early in the morning before the marketing department began its workday, so any downtime was inconsequential.

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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

"Using this solution has made our backups more reliable."

"The main feature I have found to be product replication."

"It uses the same platform for connectivity so integration is seamless."

"It is very easy to use, and it is very fast."

"Among its most appealing features are its ease of handling and minimal maintenance requirements."

"FlashBlade offers low latency, high throughput, and seamless scalability."

"It helps simplify our storage, because the user interface is very simple and the installation is easy."

"The most valuable features include the ease of implementation, ease of use and the speed that you can do backup and recovery on."

More Pure Storage FlashBlade pros

"The solution is stable."

"I rate Dell PowerScale (Isilon) a ten out of ten, and we continue to keep buying it."

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

"The solution allows me to use SSMDS to store data for end users and share it within different locations."

"My advice to other companies considering Dell PowerScale (Isilon) is that it takes a little time to understand the product, but once you have it set up and running, it will run stable for all its lifetime."

"Dell has the AI to protect the EMA."

"Ability to scale the number of nodes without having to build additional clusters."

"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."

More Dell PowerScale (Isilon) pros

"It is a very stable product. I never faced any issues."

"The data protection algorithm to protect the data between the nodes has been the most valuable feature. The integration with backup platforms such as Veeam and Veritas has also been valuable."

"The ratio of total operational cost to complexity versus feature set is very good."

"The feature that I like most is the analytics part of the file system."

"The most valuable feature of Qumulo is the ability to share files and reliability."

"The most valuable features of Qumulo are its rolling updates and all-day availability."

"The most valuable features of Qumulo are the ease of management and special permissions that are quick to enable. The overall performance of the solution is good."

"The most valuable feature is real-time analytics."

Cons

"File storage needs a lot of improvement. Mainframe connectivity also needs improvement because it requires additional components to be integrated with Pure Storage FlashBlade. If you want to keep your backup data, then this becomes an even more expensive solution because Pure Storage FlashBlade will not be able to meet your backup needs."

"It would be beneficial if the layer could support the S3 protocol and be container ready in the next release."

"It usually comes down to just what you hit and the value you're getting when you spend the money and license the products. I would always go, "If you want to make things better, lower your price and make your licensing simpler." There's always an opportunity around that."

"Recently, while upgrading the version code, one of the controllers failed. Replacing the controller took between 14 to 20 days."

"They need better integration with public clouds along with a better hybrid solution."

"The only thing I feel FlashBlade is missing is the SOS API. If it had SOS API, that would put it well over the top."

"Compared to, for example, Hitachi NAS, the solution is not mature at all. It's just in its infancy as far as technology goes."

"The feature that we're waiting on is better integration with the cell services."

More Pure Storage FlashBlade cons

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

"Its configuration needs to be more straightforward."

"The pricing could be reduced."

"The biggest weakness is small file handling. Small file compression options are not enabled out of the box. It would be good to have this enabled by default."

"Isilon has limitations on the number of files that can be generated."

"There is room for improvement in its handling of object storage."

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

"The solution isn't suitable for small environments or small customers."

More Dell PowerScale (Isilon) cons

"In the next release, I would like to see the ability to have more control at a terminal level of the file system."

"The support for iMac and protocols should be improved, not all features are available."

"The solution could improve availability and improve data protection or data services such as compression of deduplication. In a future release, we'd like to have more cloud API integrations."

"Some anti-theft permissions do not transfer well to Qumulo."

"The price of the software is a bit expensive, so a reduction in cost would make it more competitive."

"Qumulo should continue to expand automation and orchestration capabilities."

"One aspect of Qumulo that I hoped to see improved was its software upgrade process, which did see significant progress during my usage. Initially, upgrading the software resulted in several minutes of system downtime. However, by the time I departed last summer, the downtime had reduced to mere ten seconds. Although I am unsure if Qumulo has yet achieved a completely outage-free upgrade, I simply performed the upgrades early in the morning before the marketing department began its workday, so any downtime was inconsequential."

"In the future, I would like to see non-disruptive updates."

Pricing and Cost Advice

"In my opinion, we have paid the right price for the product. I don't think that it is too much or too little."

"Our licensing is renewed annually."

"The pricing for FlashBlade is between cheap and moderate."

"Licensing fees are paid yearly."

"The product is very expensive."

"We used a reseller for the purchase."

"I understand that it is competitively priced compared to other brands."

"The price could be cheaper."

More Pure Storage FlashBlade pricing and cost advice

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

"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."

"The pricing is excellent."

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

"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."

"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."

More Dell PowerScale (Isilon) pricing and cost advice

"The price of Qumulo is reasonable."

"The price of the solution is in the middle range compared to others. We look at the price per terabyte."

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Financial Services Firm

11%

Manufacturing Company

10%

Government

Computer Software Company

13%

Manufacturing Company

10%

Financial Services Firm

Healthcare Company

Computer Software Company

14%

Financial Services Firm

Government

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	20

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

By reviewers
Company Size	Count
Small Business	4
Midsize Enterprise	2
Large Enterprise	2

Questions from the Community

What do you like most about Pure Storage FlashBlade?

The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power out...

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What is your experience regarding pricing and costs for Pure Storage FlashBlade?

The pricing of Pure Storage FlashBlade is expensive compared to other products I used from other companies in the pas...

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What needs improvement with Pure Storage FlashBlade?

I believe there is not much improvement needed because they have everything we need, but the interface is a little bi...

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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 wa...

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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. S...

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Comparisons

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 11% of the time

MinIO vs Pure Storage FlashBlade

Compared 10% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 9% of the time

VAST Data vs Pure Storage FlashBlade

Compared 8% of the time

NetApp AFF vs Pure Storage FlashBlade

Compared 3% of the time

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NetApp FAS Series vs Dell PowerScale (Isilon)

Compared 16% 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

VAST Data vs Dell PowerScale (Isilon)

Compared 5% of the time

Red Hat Ceph Storage vs Dell PowerScale (Isilon)

Compared 5% of the time

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VAST Data vs Qumulo

Compared 11% of the time

NetApp FAS Series vs Qumulo

Compared 10% of the time

Nasuni vs Qumulo

Compared 7% of the time

Scality RING vs Qumulo

Compared 7% of the time

Red Hat Ceph Storage vs Qumulo

Compared 4% of the time

More Qumulo Competitors

Product Reports

Buyer's Guide

Pure Storage FlashBlade

September 2025

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Buyer's Guide

Dell PowerScale (Isilon)

September 2025

Download Dell PowerScale (Isilon) product report

Buyer's Guide

NAS

September 2025

Download Qumulo product report

Also Known As

No data available

PowerScale, Dell EMC Isilon

No data available

Overview

FlashBlade is the industry’s most advanced scale-out storage for unstructured data, powered by a modern, massively parallel architecture to consolidate complex data silos (like backup appliances and data lakes) and accelerate tomorrow’s discoveries and insights.

Pure Storage

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

Qumulo is a data storage and management platform that promotes object-based storage for users, backup archives, and surveillance. Its primary use case is to provide a cost-effective and feature-rich solution for managing large data.

Qumulo's data protection algorithm ensures the safety of node data, while its integration with backup platforms like Veeam and Veritas makes it easy to manage backups. The platform offers a good balance between operational cost and complexity versus feature set, making it an attractive option for businesses of all sizes.

Qumulo

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL

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,

County of Riverside Sheriff Department, Hyundai Mobis Automotive North America, University of Arizona, UCSD - San Diego Supercomputer Center, Medical College of Wisconsin, Sinclair Oil, Royal Dutch Shell, Kaiser Permanente, Deluxe Creative, Vexcel Imaging, University of Florida, The Madison Square Garden Company, Arizona State University, Cinesite, San Diego Padres Baseball, Johns Hopkins University - School of Medicine, IHME, EllieMae, Washington State University.

Buyer's Guide

Dell PowerScale (Isilon) vs. Qumulo

September 2025

Free Report: Dell PowerScale (Isilon) vs. Qumulo

Find out what your peers are saying about Dell PowerScale (Isilon) vs. Qumulo and other solutions. Updated: September 2025.

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