IBM Storage Fusion vs Nutanix Unified Storage (NUS) comparison

IBM and Nutanix are both solutions in the File and Object Storage category. IBM is ranked #28, while Nutanix is ranked #3 with an average rating of 8.7. IBM holds a 0.9% mindshare in FaOS, compared to Nutanix’s 2.7% mindshare. Additionally, 98% of Nutanix users are willing to recommend the solution.

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Executive Summary

We performed a comparison between IBM Storage Fusion and Nutanix Unified Storage (NUS) based on real PeerSpot user reviews.

Find out what your peers are saying about Red Hat, Dell Technologies, Nutanix and others in File and Object Storage.

To learn more, read our detailed File and Object Storage Report (Updated: December 2025).

Buyer's Guide

File and Object Storage

December 2025

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Helped 879,371 peers since 2012

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

Mindshare comparison

As of December 2025, in the File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.2%, down from 6.2% compared to the previous year. The mindshare of IBM Storage Fusion is 0.9%, up from 0.3% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 2.7%, up from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.

File and Object Storage Market Share Distribution
Product	Market Share (%)
Nutanix Unified Storage (NUS)	2.7%
Pure Storage FlashBlade	5.2%
IBM Storage Fusion	0.9%
Other	91.2%

File and Object Storage

Featured Reviews

MikaelHellström

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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Branko Cirovic

Storage Engineer at Comtrade Group

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…

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Amarnath Charugundla

System Engineer at Tata Consultancy

Unified management and cost-effectiveness lead to positive experiences and future savings

Improvement is necessary wherein the memory or storage should not breach 90%, because if breached, it becomes unmanageable. We have to set alerts or CPU triggering for 95% for the first warning. Other activities on nodes or file systems should be properly maintained. We must monitor the dashboard for P1, P2 alerts in the Nutanix Unified Storage (NUS) file share system including SMB, NFS, objects, and blocks. Attention should be maintained for any alerts such as CPU, memory, and RAM alerts, as exceeding these creates issues within teams. If triggered to 95% and forgotten, it crosses the SLA breach, causing disturbances to application, web, and platform teams. Continuous monitoring on the Nutanix dashboard is essential. Even a highly experienced person in Nutanix Unified Storage (NUS) cannot provide a 10 rating out of 10 because it is a vast system. I would rate it eight from my perspective.

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Quotes from Members

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

Pros

"The most valuable features of FlashBlade include its replication capabilities, reports, and easy allocation. Everything is user-friendly."

"The most valuable features include the ease of implementation, ease of use and the speed that you can do backup and recovery on."

"The performance of FlashBlade is excellent. It does not necessarily leverage the SOS API that some of the newer products leverage, but I found its speed pretty much on par and comparable. It is fast, and it does what it is supposed to do."

"The most valuable feature of this solution is performance."

"The ease of deployment and management has helped us simplify our storage. We also do not have to worry about capacity management as much. A lot of these things are native to Pure Storage."

"We have integrated it with VMware. The integration process is pretty good. Especially with VMware, it helps with the capacity of it."

"Pure Storage FlashBlade is user-friendly. It's replication feature is great because it has active replication and active DR. That's the beauty of the product. It's a perfect solution for block storage."

"The initial setup is pretty easy and simple."

More Pure Storage FlashBlade pros

"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."

"Offers high performance, full control, and strong security for mission-critical workloads."

"The most valuable feature is the storage density of the nodes. We went with the HP's low-density nodes."

"The capacity is very good. They use fewer nodes than before. Each node is isolated with the CPU with the performance. It is a cluster node but works separately, so the performance will be tripled."

"Currently, the most valuable aspect of our Nutanix implementation is its file storage functionality."

"We have been able to save local disk space by using Data Lens. We upload 18 GB to the cloud and are able to save 20% to 25%."

"The integration with Prism Central makes it a lot easier to manage, so we just have a single pane of glass location that we can go to. We do not have a separate admin console or anything that we have to use."

"The most valuable features of the solution are high availability and synchronization to another location."

"I like Nutanix Prism Central. The primary benefit is that we can manage everything from the same page."

More Nutanix Unified Storage (NUS) pros

Cons

"It usually comes down to just what you hit and the value you're getting when you spend the money and license the products. I would always go, "If you want to make things better, lower your price and make your licensing simpler." There's always an opportunity around that."

"I want efficiency. FlashBlade doesn't have efficiency now."

"Its configuration should be easier."

"We initially encountered challenges with the assembly process due to issues with the documentation required during setup, an area where Pure Storage needs improvement."

"I would like to see better integration."

"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 technical support needs to improve. When we open a case, it is auto assigned to a support tech person. Nine out of ten times, we get an email right back saying that person is off until tomorrow. I cannot handle that. They just did this over the weekend to us, too. I had to call our rep and have them do something about it."

"I would like to see more monitoring capability included in the next release of this solution."

More Pure Storage FlashBlade cons

"The implementation is complex, especially when using custom servers."

"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."

"There should be more automation."

"In summary for improvements, I would say stay on the integration path, keep those integrations heavy, and let us use the software and technologies with everybody."

"Nutanix Unified Storage (NUS) needs improvement, particularly for firmware upgrades, as sometimes updates take a whole day and it can be unclear whether the issue is with Nutanix Unified Storage (NUS) or the hardware, requiring us to reconfigure everything, which is a main point we want consolidated into one solution."

"The escalation process with technical support could do with some improvement."

"A more consistent flow of information would improve the solution, as I've noticed some inconsistencies, mostly stemming from the coordination between the hardware vendor and Nutanix."

"Its licensing can be better. They can make it easier for us to scale our infrastructure."

"When considering the difference in cost benefits, if you consider it only as a storage solution, you may find it expensive."

More Nutanix Unified Storage (NUS) cons

Pricing and Cost Advice

"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."

"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."

"Licensing fees are paid yearly."

"The product is very expensive."

"I feel that the price could always be lowered."

"I understand that it is competitively priced compared to other brands."

"The price could be cheaper."

"Our licensing is renewed annually."

More Pure Storage FlashBlade pricing and cost advice

Information not available

"The price of the license is expensive when comparing it to traditional storage."

"The product is neither cheap nor expensive, making it a solution offering a price range that is in the middle."

"The solution’s pricing could be cheaper."

"Nutanix is priced a bit higher than some of its competitors. A lot of Chinese companies like Huawei are entering the Saudi Arabian market trying to provide similar solutions for a lower price. It offers a good value, especially the support. Nutanix has a highly competent team. The after-sales support is excellent."

"It is competitive with other vendors, but you get more for your dollars. It is fairly priced, but not cheap."

"I hope that it will stay the way it is. We have seen the changes in VMware and what happened to them. I have heard that Nutanix will raise the prices, but I hope that they will not do that."

"It is very good. It is much more competitive than a dedicated storage platform."

"My company is in Brazil, and making the payments in dollars is tough for our organization."

More Nutanix Unified Storage (NUS) pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

11%

Computer Software Company

10%

Manufacturing Company

10%

Government

Computer Software Company

15%

Manufacturing Company

13%

Outsourcing Company

11%

University

Computer Software Company

24%

Manufacturing Company

12%

Educational Organization

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	21

No data available

By reviewers
Company Size	Count
Small Business	27
Midsize Enterprise	30
Large Enterprise	63

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...

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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...

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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...

See all answers

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...

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What needs improvement with IBM Storage Fusion?

The implementation is complex, especially when using custom servers. Simplification or better support for this aspect...

See all answers

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...

See all answers

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.

See all answers

What is your experience regarding pricing and costs for Nutanix Unified Storage?

It is very cost-effective compared to the traditional environment. With new hardware, it's a long-term investment but...

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What needs improvement with Nutanix Unified Storage?

To improve Nutanix Unified Storage (NUS), cost is always an issue for every company, especially when we talk about la...

See all answers

Comparisons

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Compared 17% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 11% of the time

MinIO vs Pure Storage FlashBlade

Compared 9% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 7% of the time

Pure FlashArray X NVMe vs Pure Storage FlashBlade

Compared 2% of the time

More Pure Storage FlashBlade Competitors

Dell ObjectScale vs IBM Storage Fusion

Compared 30% of the time

Dell PowerScale (Isilon) vs IBM Storage Fusion

Compared 30% of the time

Pure Storage Evergreen One vs IBM Storage Fusion

Compared 11% of the time

More IBM Storage Fusion Competitors

Red Hat Ceph Storage vs Nutanix Unified Storage (NUS)

Compared 10% of the time

Dell PowerScale (Isilon) vs Nutanix Unified Storage (NUS)

Compared 9% of the time

Microsoft Storage Spaces Direct vs Nutanix Unified Storage (NUS)

Compared 9% of the time

Amazon S3 vs Nutanix Unified Storage (NUS)

Compared 6% of the time

Dell PowerStore vs Nutanix Unified Storage (NUS)

Compared 3% of the time

More Nutanix Unified Storage (NUS) Competitors

Product Reports

Buyer's Guide

Pure Storage FlashBlade

December 2025

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Buyer's Guide

File and Object Storage

December 2025

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Buyer's Guide

Nutanix Unified Storage (NUS)

December 2025

Download Nutanix Unified Storage (NUS) product report

Also Known As

No data available

Nutanix Files Storage, Nutanix Volumes Block Storage, Nutanix Objects Storage

Overview

FlashBlade is the industry’s most advanced scale-out storage for unstructured data, powered by a modern, massively parallel architecture to consolidate complex data silos (like backup appliances and data lakes) and accelerate tomorrow’s discoveries and insights.

Pure Storage

IBM Storage Fusion is a powerful platform used for data management, monitoring, and performance optimization. Users leverage its intuitive interface for capacity planning, storage provisioning, and troubleshooting.

The product's scalability allows for easy expansion, while its reliability ensures data protection. With predictive analytics and automation features, users can enhance efficiency and prevent downtime.

IBM

Nutanix Unified Storage offers seamless scalability and high availability with a user-friendly interface, supporting multi-protocol operations while integrating effortlessly with cloud platforms. It enhances performance and security with features like ransomware protection and advanced data management.

Nutanix Unified Storage streamlines storage management by consolidating infrastructure and optimizing virtualization. It reduces operational complexity and enhances performance across diverse workloads. Despite feedback on integration challenges and suggestions for improving pricing, API capabilities, and security, it remains a key choice for dependable storage solutions. Calls for streamlined implementation and enhanced AI capabilities reflect its potential to better support evolving organizational strategies, driving cost efficiency and data accessibility.

What are the key features of Nutanix Unified Storage?

Intuitive Interface: Simplifies management with easy navigation.
High Availability: Ensures minimal downtime and reliable performance.
Seamless Scalability: Adapts to increasing data requirements effortlessly.
Multi-Protocol Support: Facilitates comprehensive operations across different systems.
Advanced Security: Offers ransomware protection and secure data backup.
Cloud Integration: Allows smooth interaction with cloud platforms.

What benefits and ROI should users evaluate?

Operational Efficiency: Reduced complexity through streamlined management.
Cost Optimization: Achieved via data compression and consolidation.
Enhanced Data Visibility: Improved insights with advanced data lens.
Performance Improvement: Significant uplift in workload handling and database performance.
Scalable Infrastructure: Enables growth and adaptation to changing demands.

In industries, Nutanix Unified Storage is deployed to centralize storage needs, improve database efficiency, and enhance file sharing and security. Organizations use it to consolidate infrastructure, support virtualization, optimize costs, and facilitate virtual machine hosting. It's instrumental in scalable object storage, ransomware protection, integrating legacy systems, and catering to critical applications.

Nutanix

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

Buyer's Guide

File and Object Storage

December 2025

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