Try our new research platform with insights from 80,000+ expert users

Dell PowerScale (Isilon) vs Pure Storage FlashBlade comparison

 

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:
 

ROI

Sentiment score
6.6
Dell PowerScale offers scalable, cost-efficient storage enhancing data management, performance, and durability, benefiting business growth and resource optimization.
Sentiment score
6.6
Pure Storage FlashBlade reduces total cost of ownership by enhancing efficiency, enabling fast restorations, and supporting diverse use cases.
Despite being more expensive than Huawei, it is stable and most enterprises accept the price due to its stability.
Senior System Engineer at Atlas Security
In terms of Dell PowerScale (Isilon) specifically, we have seen a return on investment due to faster performance than our last few storage arrays, and the general usability is a lot better.
Storage & Data Protection Specialist at General Dynamics Land Systems
The second cluster of Dell PowerScale (Isilon) gives us flexibility for small things like code upgrades, all the way to scenarios where we have lost this data center or data, allowing us to check if data is still intact on the other side.
Senior System Engineer at a healthcare company with 10,001+ employees
It does not require much management once you set up correctly, so it saves time, allowing an admin to focus on other work.
Senior Network Engineer at Holy Redeemer Health System, Inc.
 

Customer Service

Sentiment score
7.1
Dell PowerScale's support is praised for responsiveness and expertise, though some suggest improvements in first-line response times.
Sentiment score
7.6
Pure Storage FlashBlade's support is generally praised for responsiveness, despite occasional delays and communication issues, maintaining a favorable reputation.
Support online is definitely a ten out of ten.
Pre-Sale Engineer at Arab Operators
Dell provides support within four hours, and they always fulfill their promises.
Senior System Engineer at Atlas Security
They have managed previous issues well.
IT Manager at Regional Health Services
I would rate them an eight out of ten.
IT Field Support Engineer at a tech vendor with 10,001+ employees
The support is done through email and is not that great, making it a very problematic area I've been dealing with for over four years.
Senior Network Engineer at Holy Redeemer Health System, Inc.
Their technical support has been perfect lately, so I would give it a 10.
IT Manager at Regin Dalarna
 

Scalability Issues

Sentiment score
7.2
Dell PowerScale offers seamless scalability, efficient petabyte-level storage, and easy integration, with some initial complexity and node compatibility challenges.
Sentiment score
8.6
Pure Storage FlashBlade excels in scalability, with seamless expansion, downtime-free growth, and praised support across various sectors.
We started on PowerScale with around about 300 terabytes and are now two and a half petabytes, still on the same file system.
Storage Architect at a educational organization with 10,001+ employees
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.
Senior Infrastructure Specialist at a healthcare company with 10,001+ employees
As an unstructured data storage solution, writing into it and accessing it from the other nodes is highly scalable with no issues.
Senior Technical Engineer at a tech vendor with 10,001+ employees
Pure Storage FlashBlade is scalable.
Senior Network Engineer at Holy Redeemer Health System, Inc.
There are between 5 and 10,000 people using it in our organization.
IT Manager at Regin Dalarna
 

Stability Issues

Sentiment score
8.1
Dell PowerScale (Isilon) provides high stability, minimal downtime, with easy management and frequent upgrades ensuring nearly 100% uptime.
Sentiment score
8.1
Pure Storage FlashBlade offers exceptional reliability and impressive stability, featuring 99.999% uptime, seamless upgrades, and high performance.
Since we have good protection levels, the data is secured and replicated across the disks.
Pre-Sale Engineer at Arab Operators
Even if a node goes down, other nodes can respond and provide data back to the user without issues.
Storage Platform Engineer at Expedia Group
I assess the stability and reliability of Dell PowerScale (Isilon) as perfect.
Storage & Data Protection Specialist at General Dynamics Land Systems
In case there is any issue with any blade, the data is moved to another.
IT Field Support Engineer at a tech vendor with 10,001+ employees
 

Room For Improvement

Dell PowerScale needs cost reduction, better usability, improved cloud integration, enhanced security, and streamlined management and support features.
Users recommend better pricing, cloud integration, support, documentation, and analytics for Pure Storage FlashBlade, improving efficiency and compatibility.
Hardware failures under warranty should be addressed within the promised timeline.
Senior Engineer at Continental Tire
I would want to see more AI features with Dell PowerScale (Isilon).
Storage & Data Protection Specialist at General Dynamics Land Systems
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.
Senior System Engineer at a healthcare company with 10,001+ employees
Technical support definitely needs significant improvement.
Senior Network Engineer at Holy Redeemer Health System, Inc.
Its configuration should be easier.
IT Field Support Engineer at a tech vendor with 10,001+ employees
One way Pure Storage FlashBlade can be improved is by having more compatibility between the FlashArray and FlashBlade.
IT Manager at Regin Dalarna
 

Setup Cost

Dell PowerScale's ease of management and flexibility justify its higher cost against competitors, offering a compelling total cost of ownership.
Pure Storage FlashBlade is costly but valued for performance, reliability, and reduced administrative overhead, justifying its premium price.
It's quite expensive for the amount of storage we have.
Senior Infrastructure Specialist at a healthcare company with 10,001+ employees
Cheaper nodes will cost less, while higher performance nodes will be pricier.
Storage Platform Engineer at Expedia Group
Costs align well with what it delivers, making it a fair price for a powerful tool that meets all our needs.
Tv Systems Technical Supervisor at a media company with 501-1,000 employees
The pricing of Pure Storage FlashBlade is expensive compared to other products I used from other companies in the past, but one benefit is that they have built-in ransomware protection.
Senior Network Engineer at Holy Redeemer Health System, Inc.
Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making it good for us.
IT Manager at Regin Dalarna
 

Valuable Features

Dell PowerScale excels in scalability, flexibility, data management, and cost-effectiveness, offering seamless integration and efficiency for large-scale operations.
Pure Storage FlashBlade excels with ease of use, fast performance, scalability, seamless integration, and efficient storage features.
Dell PowerScale offers high scalability and stability as well, making it a valuable solution for enterprises.
Senior System Engineer at Atlas Security
In our AI initiatives, Dell PowerScale (Isilon) plays a significant role in data analysis, data fusion; principally, it is involved in data analysis, data extraction, and statistical analysis.
Senior Technologist at a university with 1,001-5,000 employees
Single files are limited to four terabytes in our configuration, however, the system can support up to 16 terabytes, so we can scale based on that too.
Systems Engineer at Unisity LLC
We can plug in many blades, and we can have data up to one terabyte.
IT Field Support Engineer at a tech vendor with 10,001+ employees
The best features of Pure Storage FlashBlade include better throughput and better performance.
Senior Network Engineer at Holy Redeemer Health System, Inc.
Pure Storage FlashBlade's scalability is one of the most valuable features, and importantly, it always works, allowing for seamless upgrades.
IT Manager at Regin Dalarna
 

Categories and Ranking

Dell PowerScale (Isilon)
Ranking in File and Object Storage
2nd
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
76
Ranking in other categories
NAS (2nd)
Pure Storage FlashBlade
Ranking in File and Object Storage
8th
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
39
Ranking in other categories
All-Flash Storage (12th), Software Defined Storage (SDS) (8th)
 

Mindshare comparison

As of January 2026, in the File and Object Storage category, the mindshare of Dell PowerScale (Isilon) is 7.1%, down from 8.4% compared to the previous year. The mindshare of Pure Storage FlashBlade is 5.3%, down from 6.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File and Object Storage Market Share Distribution
ProductMarket Share (%)
Dell PowerScale (Isilon)7.1%
Pure Storage FlashBlade5.3%
Other87.6%
File and Object Storage
 

Featured Reviews

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.
MikaelHellström - PeerSpot reviewer
IT Manager at Regin Dalarna
Has handled backup storage needs reliably and supports seamless upgrades
In environments requiring high throughput and low latency, Pure Storage FlashBlade provides high throughput and normal latency, but we do not have any application that requires low latency right now, so the latency of three to five milliseconds is considered kind of high. Pure Storage FlashBlade's ability to integrate with enterprise applications is not important for us, as we only want to present an S3 bucket for our backup, which we have done, and it works very fast. We use the Purity software's data reduction techniques; we have a backup software that compresses everything before sending it to the S3 bucket, achieving a data reduction of 1.1 to one. I would recommend Pure Storage FlashBlade to other companies because it's a very fast and scalable solution for anyone who needs it. On a scale of 1-10, I rate this solution an 8.
report
Use our free recommendation engine to learn which File and Object Storage solutions are best for your needs.
881,082 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
12%
Manufacturing Company
11%
Financial Services Firm
9%
Government
8%
Financial Services Firm
12%
Manufacturing Company
10%
Computer Software Company
10%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise19
Large Enterprise42
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
 

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)?
As for my experience with the pricing, setup cost, and licensing, we have had Dell PowerScale (Isilon) for a while now, so we are basically on the renewal track all the time. We did not find it to ...
What needs improvement with Dell EMC PowerScale (Isilon)?
I think Dell PowerScale (Isilon) is very good right now. Perhaps improvements could be made on the CPU level with a better CPU. I haven't used the NVIDIA yet, but a better Intel CPU would be benefi...
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 outages when we need to quickly move data between different data centers. It ensure...
What is your experience regarding pricing and costs for Pure Storage FlashBlade?
Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making it good for us.
What needs improvement with Pure Storage FlashBlade?
In my opinion, one way Pure Storage FlashBlade can be improved is by having more compatibility between the FlashArray and FlashBlade, allowing for synchronized data between both platforms.
 

Also Known As

PowerScale, Dell EMC Isilon
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,
ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
Find out what your peers are saying about Dell PowerScale (Isilon) vs. Pure Storage FlashBlade and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.