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Dell PowerScale (Isilon) vs Dell PowerStore comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 7, 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
7.3
Dell PowerScale (Isilon) enhances cost efficiency, scalability, and resource allocation, offering notable ROI and reliability despite some higher costs.
Sentiment score
7.1
Dell PowerStore boosts productivity, reduces costs, and enhances efficiency, although some users await ROI assessment amidst improvements.
Despite being more expensive than Huawei, it is stable and most enterprises accept the price due to its stability.
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.
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.
If you purchase storage with 300 terabytes, you can easily achieve one petabyte of effective capacity.
It's been trouble-free the entire time, with very high performance, as it has been designed and built properly.
We have reduced infrastructure but the same performance.
 

Customer Service

Sentiment score
8.3
Dell PowerScale receives mixed reviews on support, praised for escalation handling but criticized for initial delays and communication issues.
Sentiment score
7.5
Dell PowerStore's service is responsive and knowledgeable, but occasionally hindered by language barriers and complex support structures.
Dell provides support within four hours, and they always fulfill their promises.
They have managed previous issues well.
I would evaluate the customer service and technical support for Dell PowerScale (Isilon) as great.
If necessary, they will search for a specialist within their Dell network who we can approach with our questions.
I would rate the technical support of Dell PowerStore between nine and ten out of ten.
They also struggled with handling cases from different time zones.
 

Scalability Issues

Sentiment score
8.0
Dell PowerScale offers scalable, flexible storage solutions, easily expanding to meet demands, though often needing technical support for setup.
Sentiment score
7.3
Dell PowerStore excels in scalability and performance, ideal for large enterprise settings with cost variations by model and configuration.
We started on PowerScale with around about 300 terabytes and are now two and a half petabytes, still on the same file system.
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.
Dell PowerScale is highly scalable, as evidenced by the reduced physical hardware and the efficient use of rack space.
The solution's scalability is a ten out of ten.
The customer likely exceeds 20,000 users globally.
The smaller models are not very scalable, while the larger ones offer better scalability.
 

Stability Issues

Sentiment score
8.4
Dell PowerScale is praised for exceptional stability, near-perfect uptime, easy management, and seamless integration into existing systems.
Sentiment score
8.0
Dell PowerStore is highly stable and reliable, with users praising its seamless performance and resilient design post-deployment.
I assess the stability and reliability of Dell PowerScale (Isilon) as perfect.
I find the product to be resilient and stable. There's no downtime and no crashes.
I find Dell PowerScale (Isilon) to be very stable and reliable.
When I removed all the cables, it failed over within five minutes.
There are no bugs or glitches and it doesn't crash or freeze.
I would rate the stability of Dell PowerStore as ten out of ten.
 

Room For Improvement

Dell PowerScale faces challenges in cost, cloud integration, complexity, and user demands for better pricing, support, and efficiency improvements.
Dell PowerStore needs enhanced stability, better VMware integration, improved UI, reduced costs, advanced security, and more automation.
Hardware failures under warranty should be addressed within the promised timeline.
I would want to see more AI features with Dell PowerScale (Isilon).
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.
If you want to delve into where your I/Os are going, the reporting might need more in-depth information to make informed decisions.
In my organization, we have had to go through two weeks with no replication, which is not very handy for our production environment.
Something needs to be done with the caching to ensure that if some issue occurs, there needs to be an ability to disable caching during maintenance to make it static, safe, and good.
 

Setup Cost

Dell PowerScale is costly but seen as worthwhile due to features, flexible licensing, and ease of management.
Dell PowerStore offers competitive NVMe pricing with inclusive licensing, scalability, and cost-effective deduplication and compression features.
It's quite expensive for the amount of storage we have.
My experience with pricing, setup costs, and licensing for Dell PowerScale (Isilon) shows it's a premium platform, so it's a big amount of money.
The pricing is excellent.
Likely the cost is $400,000 whereas IBM may be $250,000.
It's an all-inclusive license, so there are no additional charges.
Based on my experience, the cost of Dell PowerStore for around 500 GB of capacity is very competitive compared to any other platform in the market.
 

Valuable Features

Dell PowerScale (Isilon) offers scalable, efficient storage with advanced management, data protection, and security features for versatile workloads.
Dell PowerStore offers flexibility, high performance, AI capabilities, user-friendly management, and cost-effective scalability with efficient storage features.
Dell PowerScale offers high scalability and stability as well, making it a valuable solution for enterprises.
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.
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.
Typically, high-performance and high-availability features, such as application snapshots and remote and local replication, are highly valued.
The solution promotes data reduction, often meeting the compression ratio.
The PowerStore's compression ratio is even higher than the Unity system.
 

Categories and Ranking

Dell PowerScale (Isilon)
Ranking in NAS
2nd
Average Rating
9.0
Reviews Sentiment
7.5
Number of Reviews
64
Ranking in other categories
File and Object Storage (3rd)
Dell PowerStore
Ranking in NAS
1st
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
112
Ranking in other categories
Data Warehouse (4th), Enterprise SAN (1st), All-Flash Storage (1st), NVMe All-Flash Storage Arrays (1st)
 

Mindshare comparison

As of June 2025, in the NAS category, the mindshare of Dell PowerScale (Isilon) is 17.7%, up from 17.1% compared to the previous year. The mindshare of Dell PowerStore is 12.1%, up from 11.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NAS
 

Featured Reviews

Yamandù Correa - PeerSpot reviewer
Helps reduce data silos, improves performance, and flexibility
Our customers have seen improvement in performance, space, and flexibility for growth and management of data protection through snapshots and other systems. The AI models are something we are looking forward to trying but are not there yet. The algorithms are specific to each company and their industry. One of the most important things is the data localization. Many scenarios require the project data traffic to be close to where it is generated and read. A lot of interaction is between users and systems. So data localization is one of the most important things in terms of using the data algorithm. We don't need to manage our PowerScale and run its storage from any location yet but it is something that is coming for sure because several customers have centralized data in main data centers. But in different locations across the globe. So this is going to be a topic. I think that through the different functionalities that the Dell platform can grant, it will be a great player. When it comes to the flexibility for supporting various data workloads while protecting them, the combination of PowerScale and PPDM and all the other components of the data protection solution right now is key. So the automatic integration between the products is one of the killer features of the solution itself. PowerScale helped us to reduce data silos. This has simplified the management of large data environments in terms of scalability and management instead of having a different solution for the right reports to see how the data evolves and how to better manage them. PowerScale can do that in combination with the other components of the ecosystem. In terms of risk reduction, We need to mention the data management and the recovery part, So of course, the integration with the data domain is key. The fact that we can rely on these functions, and the fact that we also manage different customers, and possess the recovery plans and tests that can prove the solution is working.
Brian Ricci - PeerSpot reviewer
It's constantly enhanced and has impressive reliability and data compression
The maintenance is a bit expensive. The service and support are there for three years, but after the third year, it is pretty pricey for renewal. I hope Dell addresses that. Everything is pricey these days anyway. It is not like the old days of Compellent. We used to be able to see the metrics for our customers. On Compellent, we could look up that customer and see all the metrics. That is not allowed for us now. We cannot do that anymore. I have to be explicitly allowed by the customer to do that, and some companies' security does not allow that.
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Educational Organization
13%
Financial Services Firm
9%
Manufacturing Company
9%
Computer Software Company
18%
Manufacturing Company
10%
Financial Services Firm
9%
Government
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)?
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 i...
What do you think about Dell EMC PowerStore? Is it actually a new product?
PowerStore is flexible, scalable, simple, and performant with market-leading economics for a wide range of legacy and next-gen apps. It is only Flash and can support many workloads from today's app...
How does Dell's EMC PowerStore compare with its EMC Unity XT?
Dell EMC PowerStore is a unified storage platform that has the added benefit of being scalable. The automated management of resources feature provides a more simple administration. I found the flex...
What's the difference between DELL EMC Powerstore and Powermax NVMe?
Dell PowerStore is an all-solid-state midrange storage system. It has many internal elements taken from other Dell offerings and integrated into the PowerStoreOS. The installation and setup have a ...
 

Also Known As

PowerScale, Dell EMC Isilon
PowerStore
 

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,
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Find out what your peers are saying about Dell PowerScale (Isilon) vs. Dell PowerStore and other solutions. Updated: June 2025.
856,873 professionals have used our research since 2012.