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Dell PowerScale (Isilon) vs Zadara 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:
 

ROI

Sentiment score
8.4
Pure Storage FlashBlade delivers cost savings, efficiency gains, and increased VM density, with returns seen within four years.
Sentiment score
7.0
Dell PowerScale enhances data management with cost-efficiency, improved performance, storage capacity, resource optimization, and workload automation benefits.
Sentiment score
8.4
Zadara offers cost-effective scalability, eliminating upfront investments with flexible, nearly limitless capacity, potentially saving 50% in time and money.
Despite being more expensive than Huawei, it is stable and most enterprises accept the price due to its stability.
The cost is not cheaper compared to AWS, and we have not seen the expected return on investment.
 

Customer Service

Sentiment score
8.2
Pure Storage FlashBlade's customer service is praised for expertise but sometimes experiences slower responses due to growth challenges.
Sentiment score
8.2
Dell PowerScale support is generally responsive, with some escalation needed; users appreciate assistance with complex technical issues.
Sentiment score
8.3
Zadara's exceptional, 24/7 global customer service and technical expertise reduce user workload, earning high satisfaction ratings.
I would rate them an eight out of ten.
They have managed previous issues well.
Dell provides support within four hours, and they always fulfill their promises.
The service, particularly about hardware issues and support ticket handling, is an area that needs significant improvement.
We lack adequate response times and a 24/7 service level agreement.
I rate the technical support from Zadara as nine out of ten.
 

Scalability Issues

Sentiment score
8.9
Pure Storage FlashBlade is praised for its scalability and ease of expansion, satisfying various industries like banking and media.
Sentiment score
8.0
Dell PowerScale (Isilon) offers strong scalability, easy integration, and minimal overhead, supporting large data and numerous connections efficiently.
Sentiment score
7.6
Zadara provides scalable, flexible workload management, supporting business growth with adjustable tiers and high performance for various needs.
Dell PowerScale is highly scalable, as evidenced by the reduced physical hardware and the efficient use of rack space.
Due to both cost and the knowledge required to maintain and use them, there are considerations about scalability.
Zadara is a fully-fledged platform, and our customers are happy with its use.
 

Stability Issues

Sentiment score
8.8
Pure Storage FlashBlade is highly rated for stability, reliability, and performance, with minimal downtime and swift recovery.
Sentiment score
8.4
Dell PowerScale (Isilon) offers exceptional stability, minimal downtime, easy management, and resilience, maintaining outstanding performance even in challenging environments.
Sentiment score
7.5
Users appreciate Zadara for its stability, high-availability, and reliability, noting minimal downtime and dependable performance in demanding environments.
In case there is any issue with any blade, the data is moved to another.
 

Room For Improvement

Users want better cloud integration, support, pricing, efficiency, and improvements in analytics, configuration, and backup for FlashBlade.
Dell PowerScale is expensive, lacks cloud version, complicates operations, and needs improvements in encryption, interface, and object storage performance.
Zadara needs better communication, advanced features, broader support, improved infrastructure, and user-friendly upgrades to enhance market competitiveness.
Its configuration should be easier.
Hardware failures under warranty should be addressed within the promised timeline.
Adding AI capabilities could enhance the offering as well.
Maintenance can also be complicated, especially when deeper troubleshooting requires navigating the CLI and searching for logs.
 

Setup Cost

Pure Storage FlashBlade is costlier but valued for performance, ease, and reliability, justifying its comprehensive licensing with included software.
Dell PowerScale is costly initially but offers value through comprehensive features, ease of management, and flexibility long-term.
Zadara offers predictable pay-per-use pricing, with all-inclusive features and support, appealing to cost-conscious enterprise buyers.
The pricing of Dell solutions is higher than that of Huawei.
The pricing is considered expensive.
 

Valuable Features

Pure Storage FlashBlade offers high performance, scalability, and ease of use with excellent data protection and seamless integration for large storage needs.
Dell PowerScale offers scalable management, reliable performance, data security, and efficient storage with minimal administrative effort and cost management.
Zadara offers flexible cloud integration, scalable storage solutions, and predictable costs with high performance, reliability, and user-friendly support.
We can plug in many blades, and we can have data up to one terabyte.
Dell PowerScale offers high scalability and stability as well, making it a valuable solution for enterprises.
Dell PowerScale helps in saving costs related to power and rack space, reducing physical hardware from over one hundred to twenty-nine chassis.
Eyeglass is used to monitor for malware, which is very useful for us.
Zadara's troubleshooting feature is very valuable for me.
The most valuable feature is its storage management capability.
 

Categories and Ranking

Pure Storage FlashBlade
Sponsored
Ranking in File and Object Storage
6th
Average Rating
8.8
Reviews Sentiment
7.9
Number of Reviews
37
Ranking in other categories
All-Flash Storage (17th)
Dell PowerScale (Isilon)
Ranking in File and Object Storage
3rd
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
55
Ranking in other categories
NAS (1st)
Zadara
Ranking in File and Object Storage
22nd
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
12
Ranking in other categories
All-Flash Storage (33rd), Software Defined Storage (SDS) (16th), Compute Service (10th), Public Cloud Storage Services (15th)
 

Mindshare comparison

As of May 2025, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.8%, down from 6.3% compared to the previous year. The mindshare of Dell PowerScale (Isilon) is 8.8%, up from 8.1% compared to the previous year. The mindshare of Zadara is 0.5%, down from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
File and Object Storage
 

Featured Reviews

Eric Black - PeerSpot reviewer
The ability to leverage multi-tenancy along with immutability is a huge benefit for us
The only thing I feel FlashBlade is missing is the SOS API. If it had SOS API, that would put it well over the top. Veeam Backup specifically has started to streamline their API, and they are doing that with SOS API. They have optimized it. Any of the S3 devices out there that support this SOS API can have far more API calls at once. On our side, that translates to better restoration. With SOS API, it can leverage far more restorations at a single given time or read from the device in simple terms. That results in maximizing the output and throughput from the device itself.
Eric Burgueño - PeerSpot reviewer
Simplified data management, tremendously reducing our users’ cognitive overhead
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. You can either access a file because it can be access by anyone in the organization, or you cannot at all. There is no in-between. HTTP is not considered a first-class data access protocol, so the Unified Permission Model that would allow a user to authenticate before being able to access a private file, does not apply. However, with the recent introduction of S3 starting from OneFS 9, I believe the necessary plumbing is already there for HTTPS to also be elevated to a first-class protocol in the future because both protocols sit behind a web server under the hood. It does not sound like it would be too complicated to implement, but it would be a valuable feature and it is currently missing.
Kirubel Behailu - PeerSpot reviewer
Enhancing storage management efficiency with user-friendly experience
Our customers are using Zadara for their research and development environments. We provide infrastructure for government projects, but we are often not fully aware of their specific usage.  I typically use it for our infrastructure and offer both Zadara and Microsoft Azure to our customers Zadara…
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Top Industries

By visitors reading reviews
Educational Organization
29%
Computer Software Company
12%
Financial Services Firm
9%
Manufacturing Company
8%
Educational Organization
19%
Computer Software Company
12%
Financial Services Firm
9%
Manufacturing Company
9%
Computer Software Company
23%
Manufacturing Company
10%
Financial Services Firm
9%
Retailer
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

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?
The pricing for FlashBlade is between cheap and moderate. FlashBlade is worth the money due to the experience and per...
What needs improvement with Pure Storage FlashBlade?
Its configuration should be easier. There should be easier language for the configuration.
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)?
Every time we purchase a PowerScale solution, we buy four nodes for one data center and four for another, with five y...
What needs improvement with Dell EMC PowerScale (Isilon)?
Dell's customer service needs improvement. Specifically, hardware failures under warranty should be addressed within ...
What needs improvement with Zadara?
The initial installation was difficult because many steps required the command line interface (CLI). Maintenance can ...
What is your primary use case for Zadara?
I use this product as storage. Specifically, I use it as big storage. That's the main use case for Zadara ( /products...
What advice do you have for others considering Zadara?
As for the pros and cons, the main concerns are the complexity of the initial installation and the complicated mainte...
 

Also Known As

No data available
PowerScale, Dell EMC Isilon
No data available
 

Overview

 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
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,
Time, Inc. A&E Network, The Washington Post, News UK, McGraw Hill, Gilt, Toshiba, Deloitte, VMware
Find out what your peers are saying about Dell PowerScale (Isilon) vs. Zadara and other solutions. Updated: April 2025.
850,028 professionals have used our research since 2012.