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Dell PowerScale (Isilon) vs Everpure FlashBlade comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 4, 2026

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
4.6
Everpure Storage FlashArray enhances efficiency, reduces costs, and simplifies management, offering better performance, space utilization, and long-term savings.
Sentiment score
6.2
Organizations benefit from Dell PowerScale's efficiency, scalability, cost savings, improved performance, and reliable data management without extra staffing.
Sentiment score
6.6
Everpure Storage FlashBlade reduces total cost by enhancing efficiency, saving resources, minimizing management, and preventing ransomware damage.
In the long term, spanning three to five years, the total cost of ownership becomes cheaper, considering power consumption, data center footprint, and NVMe technology usage.
Works at a consultancy with self employed
Our current workload, particularly the SQL use case, would not be possible on mechanical storage, and the ease of use for the small team for the array is important for supporting that workload.
Consultant at a computer software company with 51-200 employees
Pure Storage FlashArray integrates with APIs and other systems.
Senior Storage Engineer at Ensono
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
8.2
Everpure Storage FlashArray's support is praised for responsiveness and expertise, despite occasional time zone and off-hours challenges.
Sentiment score
7.3
Dell PowerScale users generally find support satisfactory, noting responsiveness and knowledge, but highlight inconsistencies and areas for improvement.
Sentiment score
7.6
Everpure Storage FlashBlade receives mixed reviews for support quality, with some praising responsiveness and others noting slow resolutions.
Pure's support organization is responsive with minimal bureaucracy, making support a key factor in customer retention.
Director of Engineering at a computer software company with 1,001-5,000 employees
I would rate the technical support an 11 out of 10.
Cyber Security Consultant at Jonkoping Energi AB
The support from Pure Storage is excellent.
Presales Engineer at a manufacturing company with 1,001-5,000 employees
Support online is definitely a ten out of ten.
Pre-Sale Engineer at Arab Operators
When we face issues, we raise a ticket through the valid portal, and they respond immediately and assign a local engineer to coordinate the support process.
Senior System Engineer at a financial services firm with 10,001+ employees
Dell provides support within four hours, and they always fulfill their promises.
Senior System Engineer at Atlas Security
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
7.1
Everpure Storage FlashArray offers scalable upgrades, seamless integration, and efficient performance, ideal for large-scale environments despite low-end model limitations.
Sentiment score
7.2
Dell PowerScale offers seamless scalability, supporting diverse storage types and accommodating significant workloads to meet future storage demands.
Sentiment score
8.6
Everpure Storage FlashBlade offers scalable, versatile storage solutions, enhancing capacity effortlessly for various industries with minimal constraints.
A big banking client had around 300 petabytes of data on Pure Storage.
Works at a consultancy with self employed
The solution is highly scalable, particularly when there is a need to expand capacity.
Lead Technical Architect at ePlus Technology, inc.
Theoretically, we can do controller upgrades and get into a larger chassis, but there was a limit to how far we could go without needing to do a full migration.
Consultant at a computer software company with 51-200 employees
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
8.4
Everpure Storage FlashArray boasts high stability and consistent performance, with quick support for minor issues and seamless redundancy.
Sentiment score
8.1
Dell PowerScale is praised for stability, reliability, easy management, and high uptime, with infrequent, manageable hardware issues.
Sentiment score
8.1
Everpure Storage FlashBlade is praised for stability, reliability, minimal downtime, seamless upgrades, and effective performance in diverse environments.
For stability, I rate it a ten out of ten.
Senior Storage Administrator at a comms service provider with 5,001-10,000 employees
We have continuous 99.9% uptime and do not experience any users reporting performance issues due to latency.
Senior Storage Engineer at Ensono
The vision Pure Storage FlashArray offers through the GUI is clearer; we can discern the status, what is cabled, and how direct flash is enabled.
Technical Lead at Wipro Limited
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

Pure Storage FlashArray requires improvements in offline tools, integrations, scalability, performance, analytics, cost, user control, and support.
Dell PowerScale (Isilon) users face integration, usability, and scaling challenges, with needs for improved support, security, and AI features.
Everpure Storage FlashBlade requires improvements in cloud integration, user support, feature expansion, and pricing to enhance overall reliability and functionality.
Integrating object storage into the FlashArray would benefit entry-level and SMB customers by offering a more unified solution.
Lead Technical Architect at ePlus Technology, inc.
Storing cold data on expensive arrays doesn't make financial sense, and tiering to any of the big three cloud providers would be advantageous.
Director of Engineering at a computer software company with 1,001-5,000 employees
As a technical professional, I lack visibility into the system logs.
Senior Network Engineer at Holy Redeemer Health System, Inc.
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

Everpure Storage FlashArray offers high upfront costs justified by performance, ease of use, and inclusive licensing for enterprises.
Dell PowerScale is costly but valued for its features, flexible licensing, scalability, and long-term cost efficiency.
Everpure Storage FlashBlade is priced high but justified by integrated licensing, performance, ransomware protection, and reduced administrative overhead.
They're expensive.
Director of Engineering at a computer software company with 1,001-5,000 employees
While they say it's free, we actually pay for support upfront.
Senior Network Engineer at Holy Redeemer Health System, Inc.
Some smaller organizations may find it slightly expensive, but for enterprises, when considering performance, future hardware investments, and overall benefits, it is a very cost-effective solution for mid and enterprise organizations.
Senior Storage Engineer at Ensono
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

Everpure Storage FlashArray offers ease of use, speed, reliability, seamless upgrades, data reduction, and integration, enhancing performance and efficiency.
Dell PowerScale provides scalable, efficient storage with strong integration, data protection, and easy administration to enhance operational efficiency.
Pure Storage FlashBlade excels in speed, ease of use, scalability, and offers cost-effective, secure, and user-friendly data storage solutions.
FlashArray's integration with the Pure One instrument provides a centralized platform for efficient management of all arrays.
Presales Engineer at a manufacturing company with 1,001-5,000 employees
Another noteworthy aspect is their platform, Pure One, a cloud-based analytics platform that automatically creates a case and sends out a part if a disk or controller fails.
Lead Technical Architect at ePlus Technology, inc.
It handles internal data migration seamlessly in the background without going offline, achieving a hundred percent uptime.
Director of Engineering at a computer software company with 1,001-5,000 employees
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

Everpure FlashArray
Sponsored
Average Rating
9.0
Reviews Sentiment
7.4
Number of Reviews
211
Ranking in other categories
All-Flash Storage (4th)
Dell PowerScale (Isilon)
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
80
Ranking in other categories
NAS (2nd), File and Object Storage (2nd)
Everpure FlashBlade
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
39
Ranking in other categories
All-Flash Storage (13th), Software Defined Storage (SDS) (9th), File and Object Storage (8th)
 

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.
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.
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business63
Midsize Enterprise36
Large Enterprise143
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise20
Large Enterprise44
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
 

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...
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...
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...
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...
 

Also Known As

Pure Storage FlashArray
PowerScale, Dell EMC Isilon
Pure Storage FlashBlade
 

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,
ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
Find out what your peers are saying about Dell PowerScale (Isilon) vs. Everpure FlashBlade and other solutions. Updated: March 2026.
885,789 professionals have used our research since 2012.