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Dell PowerScale (Isilon) vs IBM Storage Fusion comparison

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Executive Summary

Review summaries and opinions

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

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)
IBM Storage Fusion
Ranking in File and Object Storage
27th
Average Rating
0.0
Reviews Sentiment
6.2
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 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 IBM Storage Fusion is 0.5%, up from 0.0% 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.
Branko Cirovic - PeerSpot reviewer
Enables seamless file distribution while benefiting from scalability but could use simplified implementation
IBM Storage Fusion is used in telecoms. It is a file center that receives and shares files. It is also used for writing the CDR zone on the storage, since it offers a cost-effective solution for large-scale storage needs in a telecom setup The deployment of Storage Fusion has been new for us in…

Quotes from Members

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

Pros

"What I like best about Pure Storage FlashBlade is its object storage functionality, plus it has fast underlying hardware. Pure Storage FlashBlade is also very stable. I find its stability one of its valuable features."
"It's very easy-to-use."
"Among its most appealing features are its ease of handling and minimal maintenance requirements."
"The most valuable features of FlashBlade include its replication capabilities, reports, and easy allocation. Everything is user-friendly."
"It performs well and it is also very fast."
"It is very easy to use, and it is very fast."
"We can capacity plan at a greater level than we used to."
"FlashBlade offers low latency, high throughput, and seamless scalability."
"Dell PowerScale helps in saving costs related to power and rack space, reducing physical hardware from over one hundred to twenty-nine chassis."
"Our users are able to easily roll back snapshots without going through IT."
"The most valuable feature of Dell PowerScale (Isilon) integration with other solutions because of the standard file system protocol."
"For maximizing storage utilization, PowerScale is great. When you write the data to it, it spreads it out to all the nodes, so you get all the performance from the entire pool."
"Isilon is flexible in supporting various data workloads while keeping them protected. Dell continues to release updates and patches which enhance the use of this solution. This includes offering ransomware protection."
"Dell PowerScale has the SmartConnect and SmartConnect Pro features. That's why I like the product."
"The solution allows me to use SSMDS to store data for end users and share it within different locations."
"The solution's most valuable features are scalability and flexibility."
"Fusion provides the ability to install the secret server and distribute files; it serves as a black box where tickets are opened only if issues arise, reducing frequent upgrade problems."
 

Cons

"There is some room for new features related to authentication and integration with Kubernetes, and other solution using S3 Bucket."
"Commvault has mainly driven the Analytics, providing data and reports. However, the product has room for improvement, especially regarding storage analytics. Upgrading firmware has caused issues, requiring feature disabling to revert to traditional backups. The firmware upgrades sometimes affect Commvault backups."
"I would also like to see better support for CIFS workloads."
"I would like to see more monitoring capability included in the next release of this solution."
"An area for improvement in Pure Storage FlashBlade is its price. It could be reduced. The technical support for Pure Storage FlashBlade also needs improvement. It used to be good, with more experienced engineers. Nowadays, it isn't, and it takes longer for support to solve problems."
"Recently, while upgrading the version code, one of the controllers failed. Replacing the controller took between 14 to 20 days."
"I would like to have Snapshots and Snapmail in the next release. People who came from a NetApp background, especially expect these features."
"On our dedupe during our initial buy, we were expecting a number a little higher like 4x. However, we are getting about 3.6. While it is close enough, it doesn't quite hit the numbers. So, this has been a challenge."
"The cost of Dell PowerScale is currently high and there is room for improvement."
"We lost our technical sales reps about two years ago. We haven't gotten one assigned to us and we'd love to have one."
"If they integrated some functions, as they have on Data Domain with a cyber recovery vault, it would be ideal."
"We used to have a chat feature available on the support site. It's not available to us anymore."
"I would like to see increased reporting and statistics functionalities."
"It would be nice to see tools like Superna Eyeglass built into PowerScale."
"PowerScale is not suitable for virtual environments."
"It would be good to have synchronized mirroring between two clusters without using a third-party program."
"The implementation is complex, especially when using custom servers."
 

Pricing and Cost Advice

"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."
"I have seen ROI. It has allowed me to increase the density of my VMs without having to purchase anything additional."
"It is within reason for what you get. From what we have found comparing it to other vendors, it is in the same range as others. Given the choice, we would definitely redeploy it based on the cost."
"The product is very expensive."
"I understand that it is competitively priced compared to other brands."
"The price of this solution could be made more affordable."
"Licensing fees are paid yearly."
"I rate the tool's pricing a seven to eight out of ten."
"Dealing with the product costs and licensing areas is getting easier since Dell is simplifying the licensing process and licensing packages offered to users."
"We paid an additional fee to have Dell's ProDeploy Plus team implement it."
"We use the TNA approach which is a great opportunity for us to better manage the licenses based on how much consumption is available for the different customers so we can use that approach and scalability."
"The solution's licensing cost varies based on capacity and performance requirements."
"The only drawback for us is that it's a large upfront investment. This was a huge decision for a startup company to make. It took a bit for us to get over the line on it, but we have not regretted it."
"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."
"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."
"It is an expensive solution."
Information not available
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Top Industries

By visitors reading reviews
Educational Organization
34%
Computer Software Company
11%
Financial Services Firm
9%
Manufacturing Company
8%
Educational Organization
21%
Computer Software Company
11%
Financial Services Firm
9%
Manufacturing Company
9%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

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 is your experience regarding pricing and costs for IBM Storage Fusion?
Compared to other options, purchasing IBM Storage Fusion, along with necessary hardware and maintenance, comes with a...
What needs improvement with IBM Storage Fusion?
The implementation is complex, especially when using custom servers. Simplification or better support for this aspect...
What is your primary use case for IBM Storage Fusion?
IBM Storage Fusion is used in telecoms. It is a file center that receives and shares files. It is also used for writi...
 

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,
1. Accenture 2. Aetna 3. AIG 4. Airbus 5. Allstate 6. Amazon 7. American Express 8. ATT 9. Bank of America 10. Barclays 11. BASF 12. Bayer 13. Bechtel 14. Boeing 15. BNP Paribas 16. Cisco 17. Coca-Cola 18. Comcast 19. Dell 20. Deutsche Bank 21. Eni 22. ExxonMobil 23. Ford 24. GE 25. Google 26. Hitachi 27. Honeywell 28. IBM 29. Intel 30. JPMorgan Chase 31. Kellogg's 32. Lockheed Martin
Find out what your peers are saying about MinIO, Red Hat, Dell Technologies and others in File and Object Storage. Updated: March 2025.
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