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Dell PowerScale (Isilon) vs Qumulo comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Nov 4, 2024

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

Everpure FlashArray
Sponsored
Average Rating
9.0
Reviews Sentiment
7.3
Number of Reviews
215
Ranking in other categories
All-Flash Storage (4th)
Dell PowerScale (Isilon)
Average Rating
8.8
Reviews Sentiment
7.0
Number of Reviews
81
Ranking in other categories
NAS (1st), File and Object Storage (2nd)
Qumulo
Average Rating
7.8
Reviews Sentiment
7.3
Number of Reviews
8
Ranking in other categories
NAS (13th), File and Object Storage (21st)
 

Featured Reviews

Sowjanya MV - PeerSpot reviewer
Technical Lead at Wipro Limited
Has improved performance for mission-critical workloads and enabled seamless non-disruptive upgrades
The availability is 99.99%, which is the main factor any customer would need because their data should be available whenever they want to access it. This is one main critical thing. It is very easy to upgrade since Pure Storage FlashArray handles it well. Everything is non-disruptive now; previously, there were forklift shifts, but now that is not the case. Pure Storage FlashArray says no to forklift upgrades. Usually hardware requires downtime, but Pure Storage FlashArray has improved their footprint so that they are not asking for downtime; everything is just a non-disruptive activity, which is why customers are more inclined towards Pure Storage FlashArray. Customers want more of the models in their environment due to the performance they are giving, and everything is in one Pure1 Array console where we can view all the models on one page or just an orchestration tool. You don't miss anything; you have replication, notifications about replication, and details about which host groups replication is happening in and if that replication is successful or failed. On a daily basis, our purpose is to create volumes for infrastructure; our daily activities include creating volumes and mapping them to the host, doing any migrations from a VM, clearing the data stores, and carving the volumes to those VMs. One key factor is the data compression with a ratio of 5:1, focusing on space efficiency, inline deduplication, and the compression Pure Storage FlashArray works on; that is a major factor we can suggest to any customer. Analytical capabilities are crucial. Daily, we check the throughput and consumption, and Pure Storage FlashArray provides predictions for one year regarding usage. This prediction helps plan updates well ahead. For support, we just raise a case, and they follow up and get it done. There is also AI readiness, but with the model R2, we don't have much of that AI readiness. For others, we do have AI readiness that predicts capacity based on daily or monthly trends, enabling us to analyze how much space we need or if we need to expand the disk shelf. From an operational point of view, a good feature is that if you accidentally delete a volume, it will be retained in the destroyed state for the next twenty-four hours, which is not the same with any other vendor. I have worked in this storage domain for the past fifteen years, and this option is remarkable, benefiting any L1 or L2 engineer. Additionally, from a compliance perspective, Pure Storage FlashArray has REST APIs enabled. I have not explored automation much, but from a security standpoint, it is strong with encryption data. If you want to automate, you can easily integrate with all clouds and explore Pure Cloud for scheduling workloads, including volume creation. Customers find benefit in Pure Storage FlashArray's single management pane of glass due to the dual controller and active-active setup. If one of the controllers goes down, all workloads automatically shift to the other controller, ensuring their data is safe and accessible at all times. This is a highlighted feature that any customer desires because their data should always be accessible. For SAN workloads, we use Pure Storage FlashArray because for SAN FC fiber channel, we don't use it; we use NetApp for NAS activities. We have clearly split this, so SAN is for mission-critical applications, while network-attached storage handles file systems. This architecture helps us maximize the benefit from Pure Storage FlashArray due to the significant workloads from this giant retail client. From a footprint and energy consumption perspective, you can see energy consumption from the Pure1 storage portal on a daily basis, and it is very compact. The three models we use consume only three units, which is quite low. From a footprint and data center perspective, it doesn't occupy much space. As everything moves to cloud, there are requirements to avoid excess spending on data centers, and Pure Storage FlashArray is efficient in energy consumption and is environmentally friendly.
BE
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.
VinceVitro - PeerSpot reviewer
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.

Quotes from Members

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

Pros

"The seamless integration into the public cloud has improved my organization."
"I would recommend this product to other users because Everpure FlashArray is very easy to maintain compared to other SAN storage and easy to handle as well."
"This improves our organization because we can just set it up and we forget about it, everything works, and we do not need to worry about storage or bandwidth issues."
"It is the SAN backbone for our company."
"Before we used Pure Storage it took 93 days of employees who run the database to back up and restore databases. The scale of deployment basically went from several days to a few minutes."
"After switching to Everpure FlashArray, we saw significant results, as whatever hardware we used before is now compressed to 80%, maximizing space utilization in a single system."
"The first set up we had was really straight forward and simple."
"The solution is stable with low vulnerabilities."
"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."
"This has been a valuable solution for our business overall. It offers business continuity and replication features."
"PowerScale has made it extremely easy to scale file data across our organization. We have two implementations of Isilon. One is a replica of the other. When scaling, we add nodes to each location and expand the cluster. The process is straightforward."
"The tool's most valuable features are scalability and stability."
"The most valuable feature of the solution is the unlimited scalability. The tool has high availability and high storage capacity."
"The maintenance is very good, and the deployment is straightforward as well."
"You plug in a new node and data starts migrating over to it, and IT spreads out the load. We've added multiple nodes to the system since deploying it. The process is pretty seamless, and we are able to do it with no downtime. It's a very easy process to do."
"It has saved me from having to hire one person over the last six months, and our IT team has gotten about 40 percent of its time back."
"The most valuable feature of Qumulo is the ability to share files and reliability."
"It is a very stable product. I never faced any issues."
"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 is real-time analytics."
"The feature that I like most is the analytics part of the file system."
"The most valuable features of Qumulo are its rolling updates and all-day availability."
"The most valuable feature is real-time analytics."
 

Cons

"A three wave application or multi wave application synchronization would be an improvement."
"It's too early to tell if we've seen a reduction in total cost of ownership. The solution is expensive."
"I'd like to see a move towards individual VMs for what the performance of each VM is in a VD infrastructure. I can see the overall volume, but I would love to see things in a more granular level on the VM side."
"The way Pure Storage does the controller storage warranty or replacement has been an issue for some people who just replace the controllers every couple of years, and that's where some of the confusion with pricing and support has come in. They should be clear on the way the controller replacements happen, as it is important to know whether or not you can get a good return on them, because it can be a little confusing."
"I would like to see support for NVMe, end-to-end."
"Most of our upgrades have not been as smooth as they should have been."
"Pure Storage FlashArray could improve in the area of cryptographic information in the consoles. The user-friendliness could improve. The Pure Storage FlashArray team should come and log into the system with their maintenance credentials and then pull out the information as evidence of cryptography."
"Pure Storage FlashArray has not helped decrease the total cost of ownership."
"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."
"The solution isn't suitable for small environments or small customers."
"The cost of Dell PowerScale is currently high and there is room for improvement."
"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."
"Isilon has limitations on the number of files that can be generated."
"Dell PowerScale (Isilon) could be improved, particularly the UI, which could use some polishing as far as ease of use for the customer."
"I think Dell PowerScale (Isilon) can be improved, as the cost models are quite expensive for administration."
"The deployment of Dell PowerScale (Isilon) is not really complex but depends on the hardware deployment."
"In the future, I would like to see non-disruptive updates."
"Qumulo should continue to expand automation and orchestration capabilities."
"The solution could improve availability and improve data protection or data services such as compression of deduplication."
"The price of the software is a bit expensive, so a reduction in cost would make it more competitive."
"There is plenty of room for improvement. In the future, I would like to see non-disruptive updates."
"The price of the software is a bit expensive, so a reduction in cost would make it more competitive."
"Some anti-theft permissions do not transfer well to Qumulo."
"In the next release, I would like to see the ability to have more control at a terminal level of the file system."
 

Pricing and Cost Advice

"Cost-wise, I imagine that the product's price would probably give you a nosebleed if you were a younger company."
"It's priced higher than the market."
"Pricing is moderate. It is neither cheap nor expensive."
"The price of Pure Storage FlashArray is expensive."
"There are no licensing fees or other costs."
"The price was slightly higher than others, but competitive, if you consider all the other features that you get from it."
"Our costs are around $100,000."
"When I last looked, the prices were reasonable, and we could get an excellent array for about $60,000."
"The price of the solution can fluctuate. The price can be competitive or other times not. The price of the solution could be better."
"We paid an additional fee to have Dell's ProDeploy Plus team implement it."
"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 pricing for this solution is reasonable."
"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."
"The price of Dell PowerScale (Isilon) is reasonable."
"The solution's licensing cost varies based on capacity and performance requirements."
"Pricing for this solution is reasonable."
"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
Financial Services Firm
12%
Computer Software Company
9%
Construction Company
9%
Manufacturing Company
8%
Manufacturing Company
11%
Computer Software Company
9%
Financial Services Firm
9%
Government
8%
Computer Software Company
10%
Financial Services Firm
10%
Manufacturing Company
7%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business64
Midsize Enterprise36
Large Enterprise150
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise20
Large Enterprise46
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise2
Large Enterprise2
 

Questions from the Community

Which should I choose: HPE 3PAR StoreServ or Hitachi Virtual Storage Platform F Series?
Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Stor...
What is your experience regarding pricing and costs for Pure Storage FlashArray?
I don't really know much about the pricing for Pure Storage FlashArray in terms of the absolute cost. Regarding Everg...
What needs improvement with Pure Storage FlashArray?
Despite liking Pure Storage FlashArray, there is room for improvement in automation. Pure Storage FlashArray needs to...
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 ...
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 replace...
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Also Known As

Pure Storage FlashArray
PowerScale, Dell EMC Isilon
No data available
 

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
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.
Find out what your peers are saying about Dell PowerScale (Isilon) vs. Qumulo and other solutions. Updated: April 2026.
892,383 professionals have used our research since 2012.