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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

Everpure FlashArray
Sponsored
Average Rating
9.0
Reviews Sentiment
7.2
Number of Reviews
231
Ranking in other categories
All-Flash Storage (3rd)
IBM Storage Fusion
Average Rating
0.0
Reviews Sentiment
6.2
Number of Reviews
1
Ranking in other categories
File and Object Storage (31st)
Nutanix Unified Storage (NUS)
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
119
Ranking in other categories
All-Flash Storage (7th), Software Defined Storage (SDS) (2nd), Public Cloud Storage Services (3rd), File and Object Storage (3rd), NVMe All-Flash Storage Arrays (4th)
 

Featured Reviews

Sowjanya MV - PeerSpot reviewer
Technical Lead at Wipro Limited
Has improved performance for mission-critical workloads and enabled seamless non-disruptive upgrades
The availability is 99.99%, which is the main factor any customer would need because their data should be available whenever they want to access it. This is one main critical thing. It is very easy to upgrade since Pure Storage FlashArray handles it well. Everything is non-disruptive now; previously, there were forklift shifts, but now that is not the case. Pure Storage FlashArray says no to forklift upgrades. Usually hardware requires downtime, but Pure Storage FlashArray has improved their footprint so that they are not asking for downtime; everything is just a non-disruptive activity, which is why customers are more inclined towards Pure Storage FlashArray. Customers want more of the models in their environment due to the performance they are giving, and everything is in one Pure1 Array console where we can view all the models on one page or just an orchestration tool. You don't miss anything; you have replication, notifications about replication, and details about which host groups replication is happening in and if that replication is successful or failed. On a daily basis, our purpose is to create volumes for infrastructure; our daily activities include creating volumes and mapping them to the host, doing any migrations from a VM, clearing the data stores, and carving the volumes to those VMs. One key factor is the data compression with a ratio of 5:1, focusing on space efficiency, inline deduplication, and the compression Pure Storage FlashArray works on; that is a major factor we can suggest to any customer. Analytical capabilities are crucial. Daily, we check the throughput and consumption, and Pure Storage FlashArray provides predictions for one year regarding usage. This prediction helps plan updates well ahead. For support, we just raise a case, and they follow up and get it done. There is also AI readiness, but with the model R2, we don't have much of that AI readiness. For others, we do have AI readiness that predicts capacity based on daily or monthly trends, enabling us to analyze how much space we need or if we need to expand the disk shelf. From an operational point of view, a good feature is that if you accidentally delete a volume, it will be retained in the destroyed state for the next twenty-four hours, which is not the same with any other vendor. I have worked in this storage domain for the past fifteen years, and this option is remarkable, benefiting any L1 or L2 engineer. Additionally, from a compliance perspective, Pure Storage FlashArray has REST APIs enabled. I have not explored automation much, but from a security standpoint, it is strong with encryption data. If you want to automate, you can easily integrate with all clouds and explore Pure Cloud for scheduling workloads, including volume creation. Customers find benefit in Pure Storage FlashArray's single management pane of glass due to the dual controller and active-active setup. If one of the controllers goes down, all workloads automatically shift to the other controller, ensuring their data is safe and accessible at all times. This is a highlighted feature that any customer desires because their data should always be accessible. For SAN workloads, we use Pure Storage FlashArray because for SAN FC fiber channel, we don't use it; we use NetApp for NAS activities. We have clearly split this, so SAN is for mission-critical applications, while network-attached storage handles file systems. This architecture helps us maximize the benefit from Pure Storage FlashArray due to the significant workloads from this giant retail client. From a footprint and energy consumption perspective, you can see energy consumption from the Pure1 storage portal on a daily basis, and it is very compact. The three models we use consume only three units, which is quite low. From a footprint and data center perspective, it doesn't occupy much space. As everything moves to cloud, there are requirements to avoid excess spending on data centers, and Pure Storage FlashArray is efficient in energy consumption and is environmentally friendly.
Branko Cirovic - PeerSpot reviewer
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…
NISHANTPANCHAL - PeerSpot reviewer
Principle Technical Specialist at a comms service provider with 1,001-5,000 employees
Unified storage has simplified private cloud operations and delivers strong security and ROI
Regarding areas for improvement, I think Data Lens could be enhanced from Nutanix's side, but it has been a long time since I logged into that console, so I do not remember much. It is a SaaS-based offering on the Nutanix portal. It is not something you deploy on-premises; it is not on-prem access. You connect your cluster to the SaaS-based Nutanix and then access the Lens console. I need to check it since it has been almost two or three months since I logged in. Nutanix Enterprise AI actually needs to improve a lot if I compare it with any other product such as NVIDIA and other offerings in the market. Nutanix Enterprise AI still requires a lot of work. I did not check that in much detail technically, but whatever I thoroughly checked, it still lags behind in many features. When it comes to AI-related features, I think the ecosystem of Nutanix is not as big as NVIDIA because NVIDIA has its own inferencing system and model training platform such as NeMo, NeMoTron, and others. Nutanix does not have such things. It can be built using NVIDIA CUDA libraries, but what I saw when I was testing the product is that you can run NVIDIA NeMo and PyTorch and two other things, but as a software, Nutanix does not have an end-to-end platform. That is something Nutanix should focus on.

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 feature is test performance. It helps us store large amounts of data along with providing us faster retrieval of data."
"Technical support is very good."
"We have seen a good reduction in the amount of total storage space that we're using because of the deduplication."
"The experience has been very good so far for the company."
"It has improved my organization in the way that now we have lower latency, we get fewer complaints from customers, and we see a constant response time."
"We have looked at all of the platforms, and to see what Pure was able to do within a PoC environment meant that we never turned back our PoC environment."
"The best features Everpure FlashArray offers are the speed and dependability, which are the main features that we get from Pure; it is faster than its competition, and we do not have any documented downtime from it ever."
"What I appreciate most about Everpure FlashArray is that it performs compression and deduplication fantastically."
"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."
"Nutanix Objects is reliable."
"The best Nutanix Unified Storage features are its recovery and data speeds. It has resolved the issue of accessing information quickly."
"Nutanix Unified Storage is a stable solution that provides good storage and efficiency."
"What I found to be the most valuable features were better performance and uptime."
"Nutanix Files is a complete solution in the Telco Machine and offers a host of benefits, including easy management, upgrading, and analytics of new data."
"I rate Nutanix Unified Storage (NUS) a ten out of ten."
"Management-wise, it has made work a lot easier. It is all in one place physically. It is much better now."
"Nutanix Unified Storage is easy for end users to access. They can use it like any other drive on their systems. We have mapped it in the user system so they can scan files and store them. They can use it just like an Android drive."
 

Cons

"There are scenarios with very specific functionality around VMware integration particularly to do with the way we'd like to manage LUNs in VMware. The tools are pretty good but there's room for improvement there."
"Awareness about Pure Storage needs to increase. Currently, people mostly think of Dell and NetApp when it comes to storage."
"It would be beneficial to have a health check command that can be run from the CLI to ensure that all hardware components are functioning properly rather than having to enable remote access and connect to support for a health check."
"The solution is expensive."
"The only minor issues that come to mind are that, every once in a while, a hard drive will go bad. Also, the solution should be cheaper."
"Price per terabyte is substantially higher than their competition. We would like to see it drop."
"In the next release I would like to see integration into other third-party player providers like Google."
"I like what they're doing, but some of my customers complain that they do not have all the bells and whistles and knobs to fine-tune workloads that some of the competitors have. In my opinion, that's good. All customers don't have dedicated storage gurus, and they can get themselves into trouble if they fine-tune too many of those high-performance knobs, but they do get knocked down. Pure Storage takes a hit in the minds and opinions of some of the customers because they cannot customize things as much as compared to a legacy storage provider's appliance such as NetApp, Dell EMC, or even HPE. I personally think 95% of my customers are better off letting the system fine-tune itself. That was something that you needed to do 12 or 15 years ago, but now with all-flash, the technology can handle what it needs to handle. Customers just end up shooting themselves in the foot if they are tweaking too many default settings."
"The implementation is complex, especially when using custom servers."
"Some of the new features in the tool cannot be used with just one click, as was possible in the past."
"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."
"While they are good and they do work, some of the snapshotting and tiering features are not as simple to set up as they could be."
"It's still pretty expensive."
"It is challenging to configure access control settings."
"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."
"It would be beneficial if there were a migration tool for the new way of syncing data for data protection. Currently, we have 30 days' worth of snapshots going back and forth for data protection. A migration tool to transition to better syncing for DR would be valuable, as otherwise, we lose 30 days because of the storage requirement."
"I acknowledge that the price of the product can be too high, and it would be beneficial if pricing were more flexible for end users."
 

Pricing and Cost Advice

"It could always be lower, but it's okay."
"The pricing of Pure Storage is all-inclusive. It is very fair, and very easy. In comparison, Dell EMC has licensing that needs to be added if you wan to work in a complex environment or in specific functionalities."
"Cost-wise, it's been very effective."
"It is light years beyond anything else with the same price point."
"There are no licensing fees aside from the support."
"The price, in general, is around $100,000, however, I know it costs more."
"For pricing, you have to take into account their performance on deduplication and compression in a $/GB comparison."
"The best features come included without any additional cost."
Information not available
"In my opinion, the product is fairly priced."
"It's definitely a lot cheaper than buying a new EMC array. We bought a five-year commitment on all the hardware and software. I don't know what the cost was back then, but I do remember it was cheaper."
"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."
"In the manufacturing industry, we operate under very lean principles where costs are heavily scrutinized. There was some initial hesitation, but the performance we've experienced since switching to the Nutanix platform, along with the peace of mind from having confidence in our platform to not give us issues that keep us up at night, has smoothed over much of that scrutiny."
"It is very good. It is much more competitive than a dedicated storage platform."
"Nutanix Unified Storage is competitively priced. There aren't any competitors that can do much better for the same price."
"Nutanix's pricing is definitely much better when compared to other storage providers. That was one of the main reasons we switched to this platform."
"Nutanix Unified Storage pricing is reasonable."
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Financial Services Firm
11%
Construction Company
10%
Comms Service Provider
7%
Outsourcing Company
17%
University
11%
Computer Software Company
11%
Manufacturing Company
9%
Manufacturing Company
12%
Computer Software Company
12%
Financial Services Firm
9%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business71
Midsize Enterprise38
Large Enterprise159
No data available
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise31
Large Enterprise69
 

Questions from the Community

Which should I choose: HPE 3PAR StoreServ or Hitachi Virtual Storage Platform F Series?
Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Stor...
What is your experience regarding pricing and costs for Pure Storage FlashArray?
I find the pricing of Everpure FlashArray to be quite high compared to other storage solutions; however, the reliabil...
What needs improvement with Pure Storage FlashArray?
I believe we have covered the most important features; the architecture of Pure Storage is essential, and features su...
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 is your experience regarding pricing and costs for Nutanix Unified Storage?
The pricing for Nutanix Unified Storage (NUS) is subscription-based with capacity-based licensing and has moderate to...
What needs improvement with Nutanix Unified Storage?
One area for improvement I noticed while using Nutanix Unified Storage (NUS) is expanding advanced analytics and pred...
What advice do you have for others considering Nutanix Unified Storage?
My advice for others looking into using Nutanix Unified Storage (NUS) is to clearly understand your storage requireme...
 

Also Known As

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

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
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 Dell Technologies, Red Hat, Nutanix and others in File and Object Storage. Updated: July 2026.
908,877 professionals have used our research since 2012.