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IBM Storage Fusion vs Nutanix Unified Storage (NUS) comparison

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Comparison Buyer's Guide

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 (16th), Software Defined Storage (SDS) (7th)
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
Nutanix Unified Storage (NUS)
Ranking in File and Object Storage
3rd
Average Rating
8.8
Reviews Sentiment
7.4
Number of Reviews
98
Ranking in other categories
All-Flash Storage (6th), Software Defined Storage (SDS) (3rd), Public Cloud Storage Services (6th), NVMe All-Flash Storage Arrays (4th)
 

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 IBM Storage Fusion is 0.5%, up from 0.1% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 3.1%, up from 2.0% 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.
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…
Juan-Contreras - PeerSpot reviewer
Ensures streamlined management, simplified infrastructure, and efficient data handling
It has effectively managed our unstructured data, including audio and video files. We've experienced smooth operations without any complaints regarding uploading or downloading videos. While video usage isn't as frequent, we primarily utilize it for downloading videos related to specific incidents for administrators or our police department. We've encountered no issues uploading files of any kind. Transitioning from VMware to Nutanix has highlighted the overall flexibility of Nutanix's platform. Unlike VMware's three-tier system, Nutanix simplifies the learning curve by streamlining operations. The update process, in particular, has been favorable, with no critical issues encountered. The resiliency of Nutanix hasn't been thoroughly tested in our environment so far. However, I routinely check fault tolerance settings to ensure they meet our requirements. During the update process, I've observed critical errors occur as hosts restart, but Nutanix's self-healing mechanism handles these issues seamlessly. The benefit of using Nutanix is evident in several ways. Firstly, we've effectively compressed our storage while significantly expanding our overall storage pool. Previously, our service had a capacity of twenty-five terabytes, but with Nutanix, we've scaled up to a hundred and twenty terabytes physically and approximately fifty terabytes logically. This expansion has been accompanied by noticeable improvements in performance, particularly with reduced latency and IOPS well within the boundaries of our equipment. All our resources are centralized in a single location for managing and running storage: our data center. We operate three Nutanix nodes within this center, effectively managing everything from one central location. We don't have any other locations outside of our data center running a Nutanix cluster. Nutanix's capability to eliminate silos within our organization's storage infrastructure was discussed during our recent call with the engineer. Although we haven't explored this feature extensively yet, there's a forthcoming project where we anticipate leveraging it.One thing I'd appreciate is having a desktop application similar to what VMware offered. With VMware, I could download a separate client program onto my computer, allowing me to log in directly rather than accessing the host through a browser.

Quotes from Members

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

Pros

"The product is scalable and easy to expand."
"The initial setup is pretty easy and simple."
"I would rate this solution an eight plus. It has has good flexibility and stability, it's easy to manage and the response time is good."
"We have seen a reduction in the total cost of ownership by around 20%."
"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."
"I like its size. It is smaller than the other competitors. We can plug in many blades, and we can have data up to one terabyte."
"Among its most appealing features are its ease of handling and minimal maintenance requirements."
"It uses the same platform for connectivity so integration is seamless."
"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."
"The reliability and stability of Nutanix Unified Storage (NUS) is good, and the disaster recovery component is something impressive for this product."
"Nutanix Unified Storage is a simple, user-friendly, and stable solution."
"The solution is very easy to manage."
"Management-wise, it has made work a lot easier. It is all in one place physically. It is much better now."
"The most valuable features of the solution are high availability and synchronization to another location."
"They have well-documented best practices and the interface is good."
"Nutanix Volumes is a perfectly stable product."
"We migrated over to Nutanix and saw an immediate improvement in the performance."
 

Cons

"I would like to see more VM-Aware features in the next release of this solution."
"There is some room for new features related to authentication and integration with Kubernetes, and other solution using S3 Bucket."
"The speed could be improved."
"I would like to see more monitoring capability included in the next release of this solution."
"In terms of scalability, it doesn't expand out quite as robustly as some of the others, but it covers 90% of the market in what it does."
"It would be beneficial if the layer could support the S3 protocol and be container ready in the next release."
"It would be nice if you could store file-based in the same box with the same technology."
"It's on the expensive side, as expected for a niche product."
"The implementation is complex, especially when using custom servers."
"There should be more automation. Going deeper, I would appreciate seeing out-of-the-box automation for storage provisioning and maybe some more customer-facing, web portal-type or API functionality to Jira or ServiceNow."
"There is no tagging concept in Nutanix Unified Storage where you can tag the servers."
"The graphical user interfaces could benefit from more attention to detail."
"Perhaps when it comes to deploying NUS virtual machines on top of CVMs, it should not be necessary for it to be in all of them or they should require fewer resources on the servers."
"Nutanix Unified Storage (NUS) sits in a good place for us. The biggest improvement would be to make it more cost-effective from a storage node and storage perspective, so that the solution isn't such a question when it comes to cost-prohibitiveness versus potentially other vendors."
"We would love to see the analytics and ransomware protection extended beyond just file servers to virtual machines, but they have a different product that covers that."
"Customer service is more difficult to call and they do not responding as much as, for example, DataCore. It's not the same level of satisfaction compared to DataCore. Responses could be faster."
"We have some problems with Nutanix Unified Storage's support because they asked us to change our hardware."
 

Pricing and Cost Advice

"It's a costly solution, but Pure Storage FlashBlade doesn't require additional licenses. All of the software is combined into one bundle."
"The pricing for FlashBlade is between cheap and moderate."
"The price of this solution could be made more affordable."
"I understand that it is competitively priced compared to other brands."
"Support is a separate line item. Support is a different cost, but whatever your support is now, that's what you're going to pay forever. If your support's $100 today, six years from now it's $100. It doesn't fluctuate unless you upgrade it, or change it, etc."
"We used a reseller for the purchase."
"Pure Storage FlashBlade is a hardware appliance, and it's very expensive if you compare its price with other solutions. You can get the same features and benefits from its competitor, VAST Data, but for half the price of Pure Storage FlashBlade."
"I rate the tool's pricing a seven to eight out of ten."
Information not available
"The price can always be improved. As a customer, you always seek reasonable solutions within your budget, and they give us little to do a lot. My IT team always has to justify that we are choosing an optimal solution, so the price could be a little lower Maybe the prices could be a little bit lower."
"With all of the Nutanix equipment, the licensing is expensive. We operate in the enterprise space, but we're a midsized company. At times, the price tag is a little bit shocking for a company with only 35 employees. We're not a Fortune 500 company, but we deal with Fortune 500 drug and energy companies. We have to play in that enterprise space if we're going to have enterprise customers. I'm very price-conscious, but I understand that if I want the best, I've got to pay the price."
"My company is in Brazil, and making the payments in dollars is tough for our organization."
"I assume Nutanix Unified Storage (NUS) has helped reduce our total cost of ownership."
"The solution's pricing is fair."
"Nutanix Unified Storage isn't expensive."
"It is quite expensive otherwise as it comes with three-tier peer underlying hardware."
"Nutanix Unified Storage is competitively priced. There aren't any competitors that can do much better for the same price."
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Top Industries

By visitors reading reviews
Educational Organization
27%
Computer Software Company
12%
Financial Services Firm
10%
Manufacturing Company
8%
No data available
Computer Software Company
32%
Educational Organization
19%
Manufacturing Company
6%
Financial Services Firm
4%
 

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 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...
What do you like most about Nutanix Unified Storage?
Nutanix has excellent product documentation available on their portals, written in simple, easy-to-understand language.
What is your experience regarding pricing and costs for Nutanix Unified Storage?
I heard that VMware is costlier than Nutanix Unified Storage (NUS). Previously, I worked with a Nutanix partner, so I...
What needs improvement with Nutanix Unified Storage?
There are some techniques in Nutanix Unified Storage (NUS) that need to be improved. Sometimes, processes get stuck o...
 

Also Known As

No data available
No data available
Nutanix Files Storage, Nutanix Volumes Block Storage, Nutanix Objects Storage
 

Overview

 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
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
JetBlue, International Speedway Corporation, Volkswagen SAIC, Brighton and Hove City Council, Foresters Financial, Janus International Group, Cloud Comrade, Serco
Find out what your peers are saying about MinIO, Red Hat, Nutanix and others in File and Object Storage. Updated: April 2025.
851,491 professionals have used our research since 2012.