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Dell PowerScale (Isilon) vs HPE 3PAR StoreServ vs Qumulo comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

Mindshare comparison

As of July 2025, in the NAS category, the mindshare of Dell PowerScale (Isilon) is 17.7%, up from 17.3% compared to the previous year. The mindshare of HPE 3PAR StoreServ is 3.5%, down from 4.3% compared to the previous year. The mindshare of Qumulo is 6.5%, up from 6.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS
 

Featured Reviews

Scott Taylor - PeerSpot reviewer
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.
Muhammad Saqib - PeerSpot reviewer
Uninterrupted upgrades accelerate performance with good support
I would rate the solution eight out of ten. It should be noted that in Pakistan, some parts are not readily available, and we need to import them from Singapore or other countries. We encountered an issue with a customer where the midplane failed and was not available. We had to wait for several days for a replacement, even in a 24/7 support case. Additionally, we faced motherboard failures in the customer's environment, encountering two motherboard failures simultaneously. We obtained one motherboard immediately, yet had to wait ten days for another. These issues should have been resolved promptly given the 24/7 support level.
VinceVitro - PeerSpot reviewer
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

"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."
"It assists with eliminating storage silos because it provides SMB and NFS protocols. PowerScale has also helped free up our employee's time to focus on other business priorities."
"Our users are able to easily roll back snapshots without going through IT."
"Dell PowerScale's performance is good."
"I rate Dell PowerScale (Isilon) a ten out of ten, and we continue to keep buying it."
"The most valuable feature of the solution is its performance."
"Customer service has been really good."
"Dell PowerScale overall is easy to use."
"It's reliable and it's fast."
"The optimization features move chunklets or hot spots to faster drives."
"With the support that our organization has, I can talk to someone right away if I have an issue. It has been very good."
"The solution is stable."
"This system has been (by far) the easiest to use, manage, and expand."
"The initial setup was very straightforward."
"The most valuable feature of this solution is the native full mesh (multi-pathing)."
"With the new flash arrays, 3PAR has improved our performance."
"The most valuable feature of Qumulo is the ability to share files and reliability."
"The ratio of total operational cost to complexity versus feature set is very good."
"The most valuable feature is real-time analytics."
"The most valuable features of Qumulo are its rolling updates and all-day availability."
"It is a very stable product. I never faced any issues."
"The feature that I like most is the analytics part of the file system."
"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 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."
 

Cons

"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."
"The portal is really complicated to figure out features and functions, and it could be easier to navigate."
"I would make Dell PowerScale (Isilon) better by improving SmartSync in the graphical user interface. Currently, everything has to be done through the command line, and I prefer having a graphical interface."
"Some improvements to the NFS support would be of interest to us."
"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 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."
"Because of the magic that it does 'under the hood,' it is very difficult to find out within the system where all your storage is going. That's a little bit of a ding that we have on it. It does so much magic in order to protect itself from drive failures or multiple drive failures, that it automatically handles the provisioning and storage of your data. But by doing that, finding out why a file of a certain size, or a directory of a certain size, is using more storage than is being reported in InsightIQ, is very difficult to discern."
"There are some missing features in the product, especially when our company needs to do some tape backup, and we see that the tool doesn't have integration capabilities."
"HPE 3PAR StoreServ is at its end of life and they are forcing us to purchase new hardware. They will no longer support this solution. They should provide support for a longer time. For example, 10 years instead of five years."
"We have had some challenges in the Arabic implementation and in migration, but for daily work, it's fine."
"An area of improvement for this solution is an increase in the bandwidth as well as an upgrade of the storage functionality and capabilities. The storage needs to be expandable for future-proofing."
"We would like to see better support for iSCSI."
"Sometimes control is rebooting and nobody knows why, so there are issues."
"I would like to see a faster Ethernet connection. Right now, it is 10G. If they could do multiple hundred gigs to speed up the transfer from the array to the servers, that would be good. We are trying to get away from Fibre Channel."
"The only drawback on it is that tech support seems really busy. We get a critical notification when an important patch comes out, but sometimes it's a month before we can get this critical piece on because they just don't have time on their schedules to do it sooner."
"We are still waiting for the compression feature to be deployed."
"Qumulo should continue to expand automation and orchestration capabilities."
"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."
"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."
"In the future, I would like to see non-disruptive updates."
"The support for iMac and protocols should be improved, not all features are available."
"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 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

"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."
"It is an expensive solution."
"Pricing for this solution is reasonable."
"The solution's licensing cost varies based on capacity and performance requirements."
"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."
"We paid an additional fee to have Dell's ProDeploy Plus team implement it."
"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."
"They have added features, such as the compression and duplication, which have further increased our ROI."
"It is quite difficult to decide on the cost. At one point, I was the project lead to cover with some people, but the price was important and we had its compression calculated. At that moment, it was fair because that was one of the things moving their product due to the cost of HPE 3PAR StoreServ as they were competing with Hitachi and IBM A9000, which I'm not sure if is still available."
"The total cost of ownership really is worth every penny."
"The cost is reasonable given that the licensing is all included once you purchase it."
"It is a little more money, but it is worth it because it does it better."
"Making the decisions to buy it can be complex."
"The price of the license depends. Some people expect more from the hardware. Some expect more from the licensing, and that is because you can receive several licenses nowadays, such as the terabyte license. You buy the storage, and you pay extra for the terabyte license for the software. There is a one-time purchase for the license and you pay annually for the maintenance."
"It's a good price."
"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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Comparison Review

it_user182013 - PeerSpot reviewer
May 1, 2015
Measuring Up: EMC XtremIO and HP 3PAR
Leading up to EMC World 2015, IT Central Station asked how I would compare EMC XtremIO and HP 3PAR. Until recently, the flash storage conversation in my organization and many others has centered on XtremIO and Pure Storage, the leaders of the all-flash array (AFA) space. To that end, I've written a…
 

Top Industries

By visitors reading reviews
Computer Software Company
13%
Manufacturing Company
10%
Financial Services Firm
9%
Healthcare Company
8%
Educational Organization
41%
Computer Software Company
10%
Financial Services Firm
6%
Manufacturing Company
6%
Computer Software Company
14%
Financial Services Firm
9%
Government
7%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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)?
We have to go through a certified reseller for Dell PowerScale (Isilon). From a value standpoint, it performs very well.
What needs improvement with Dell EMC PowerScale (Isilon)?
There will always be room for improvement with Dell PowerScale (Isilon). They should add some new services that shoul...
What's the difference between HPE 3PAR StoreServ and HPE Primera?
HPE Primera has many great features but one of the best is that it is very easy to deploy. From an overall perspectiv...
What is your experience regarding pricing and costs for HPE 3PAR StoreServ?
It is expensive, however, when we compare it to the features provided by HPE, the price-to-performance ratio is very ...
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Also Known As

PowerScale, Dell EMC Isilon
HPE 3PAR Flash Storage, InServ, Storeserv, 3PAR Flash Storage, HP Enterprise Storage, 3PAR Flash Array, HP 3PAR Flash Storage
No data available
 

Overview

 

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,
Just Energy, Latisys, team AG, DreamWorks, BlueShore Financial, Erasmus MC
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 Technologies, NetApp, Hitachi Vantara and others in NAS. Updated: July 2025.
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