IBM FlashSystem 9100 NVMe vs Nutanix Unified Storage (NUS) comparison

IBM FlashSystem 9100 NVMe vs. Nutanix Unified Storage (NUS)

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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 FlashArray X NVMe

Mindshare comparison

As of May 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 0.8%, down from 0.8% compared to the previous year. The mindshare of IBM FlashSystem 9100 NVMe is 0.5%, down from 0.5% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 0.6%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

All-Flash Storage

Featured Reviews

Eugene Hemphill

Sales Manager at Multicomputos PR

Helps to save money and resources with the data compression feature

One point I'd like to improve is that the tool should start selling small boxes again. It discontinued some products and is focusing on bigger, more capable boxes, neglecting the SMB market. Even though it's not a big market, it shouldn't have removed them. One way to improve the product is to add an operational assistant that doesn't depend on VMware. It could also establish more alliances with other operational systems.

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Mohamed-Hassan

Microfinance at a consultancy with 11-50 employees

Steady performance, responsive support, and high availability

If we add a shell, the scalability depends on a legacy protocol and not the IBM FlashSystem 9100 NVMe which is a setback. At the previous bank, I worked at we had approximately 9,000 users. We are using the solution at its full capacity. I rate the scalability of IBM FlashSystem 9100 NVMe a seven out of ten.

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Juan-Contreras

System Administrator at a educational organization with 501-1,000 employees

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.

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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

"We're able to get higher-density workloads on the same infrastructure, and we have a smaller physical footprint. The performance is excellent – during our test the bottlenecks are never on the X array, it just keeps picking up the pace to match what you need. The real-time visibility is a differentiator in my opinion."

"The Pure1 component is most valuable at this point in time when comparing it with EMC. Pure1 is where you can have your diagnostics in the cloud, so you can look at things from your mobile phone."

"The most valuable feature of this solution is its ease of use."

"Offers excellent features like efficient data reduction, a reliable SafeMode, and a great support model for continuous assistance and updates."

"The high availability of the product is the most valuable feature."

"Everything, especially the VMs inside, is pretty fast."

"It's helped us because we've changed fundamentally what we talk about. We don't talk about storage and different tiers of storage anymore nor do we talk about servers. We talk now about applications and how applications impact the business and end users."

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

More Pure FlashArray X NVMe pros

"The high performance and high availability improved our overall processes."

"What I like about the product are its high availability, maximum efficiency in performance, and its ability to handle a high level of I/O operations."

"IBM FlashSystem provides the same software on each box, including virtualized solutions."

"The storage serves the virtual environment. Most of our applications run in the virtual environment, and it serves nearly 30% of the bank's capacity."

"Its ease of use, performance, and hardware compression is very useful feature."

"IBM FlashSystem 9100 NVMe is one of the leading storage systems in the world...I rate the solution's stability a ten out of ten."

"The features I find most valuable include its use for storage and performance."

"A key feature is that compared to storage systems that we've been familiar with over decades, IBM simply does not fail. The reason is that IBM is the only manufacturer that engineers its own flash module, and there is a key architectural difference from everything else that we have seen in the market. The difference is that the flash module has the computational capability, which allows reliability and capacity enhancements to be uploaded from the main controllers and run in each module. So, each of the flash drives becomes its own little storage system, and that is extremely effective architecture. In this field, with this type of system, IBM has made a statement. They've never had one of these modules cause an outage. So, the failure rates on these things are just in a whole different universe from what we were accustomed to."

More IBM FlashSystem 9100 NVMe pros

"My company has benefitted from Nutanix Unified Storage because we have everything in a centralized place. With Prism Central, we can go to the console files and do what we have to do."

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

"We can utilize mixed storage block-sized objects and combine various databases within a unified interface."

"Nutanix Unified Storage is easy to use. New employees are able to come up to speed fairly quickly with regard to the day-to-day administration processes."

"The interface is quite simple. It is very good. It is easy to configure. It also has a powerful CLI."

"The solution is simple and robust."

"The most valuable features of Nutanix Unified Storage are the unified dashboard and the ease of administration."

More Nutanix Unified Storage (NUS) pros

Cons

"I'd like to see the product implement active replication for vehicles such as VMware."

"There is room for improvement in catering to midrange storage needs, especially for customers seeking Enterprise-class features."

"There is room for improvement in the pricing of the product."

"In terms of what needs improvement, the dashboard and management could be simplified."

"Managing data isn't difficult for me. The performance is usually perfect, but we sometimes have capacity problems."

"One point I'd like to improve is that the tool should start selling small boxes again. It discontinued some products and is focusing on bigger, more capable boxes, neglecting the SMB market. Even though it's not a big market, it shouldn't have removed them."

"They could add more support for file storage and different types of storage."

"Efficiency improvements would always be welcome, but I'm not sure if they could get more efficient."

More Pure FlashArray X NVMe cons

"There could be a possibility of not requiring to buy a new box while upgrading to a newer version."

"The ZIO interface could be improved."

"In the future, the limitation is upgrading the same storage by adding a shelf to the desk. There is a limitation in the backend connection between the storage and extended shelf."

"The storage system itself should have built-in capabilities for different ransomware attacks."

"The solution's compression needs to be improved, as it's not the best."

"Deduplication and compression should be improved."

"The pricing should be more competitive."

"The efficacy of the GUI in IBM FlashSystem 9100 NVMe could be enhanced, and it would be beneficial to include a feature that can prevent ransomware attacks."

More IBM FlashSystem 9100 NVMe cons

"There are still some gaps in the solution's synchronization that could be improved."

"Improving quota policies would be advantageous, particularly by offering the option to implement blocking instead of just issuing warnings."

"The solution should include more protocols to access data."

"The graphical user interface could provide more detail. It would be nice if we could click on the service and get some expanded definitions of them. When hiring new people, it's difficult to teach them how everything works, but if they can access everything, they can teach themselves."

"The implementation is a little bit complex and should be made easier."

"Pricing can always be better."

"I have heard that there have been latency problems."

"The feature request I have is for the consistent improvement of how user account permissions are assigned in Nutanix Unified Storage."

More Nutanix Unified Storage (NUS) cons

Pricing and Cost Advice

"The product is expensive."

"The tool is an investment that we've budgeted for. While the prices may be higher than those of other vendors, we see it as a market leader with benefits. We don't regret purchasing it."

"Given its price, Pure is not the first option."

"With VMware, we pay $300,000 annually."

"With Pure Storage, we would like to continue seeing price reductions with flash storage. I don't think we're any different than anybody else when we continue to look to the industry for price reductions of both NVMe and traditional SSD storage. We would like to see these prices continue to decline and erode, even displacing large spinning disks."

"Pretty much everything that you need is licensed when you buy the product. Licensing to me is different than the maintenance cost, but they can bleed into one another. We buy the product, and we expect three years of support bundled into what we negotiate on our storage arrays. I would start to see maintenance costs going into the fourth year, but we're not there yet."

"Pure FlashArray X NVMe’s pricing is cheaper than other products."

"As far as the licensing costs, everything is included in the license."

More Pure FlashArray X NVMe pricing and cost advice

"Compared to other solutions, the cost of IBM FlashSystem 9100 NVMe is reasonable, with a one-time payment of around $70,000. However, additional support is available for $25,000 for three years. The overall maintenance cost is steep."

"Price-wise, the solution offers excellent pricing to its users. In short, the prices offered by the solution are competitive compared to similar solutions."

"Compared to its competitors, IBM's offering is the most cost-effective."

"On a scale of one to ten, where one is a low price and ten is a high price, I rate the pricing an eight."

"It's a lot less costly than cloud storage. People get surprised by the cost of cloud storage, which is extremely expensive and four or five times the cost of storage on-premises. People don't realize what they're spending on storage until they start getting bills from Amazon, Microsoft, and others. This is a good way to reduce your cloud storage expenses."

"The product has an average cost."

"The price of IBM FlashSystem 9100 NVMe is less than Dell. For upgrades, the Dell solutions are more expensive."

"The price of the FlashSystem 9100 NVMe is reasonable."

More IBM FlashSystem 9100 NVMe pricing and cost advice

"In my opinion, the product is fairly priced."

"The cost of Nutanix Unified Storage can be prohibitive for some small and medium-sized businesses, making it challenging for them to adopt the product."

"Compared to other solutions, NUS is cost-effective and efficient. It also has good performance."

"I find Nutanix Files Storage competitively priced, even its feature set. Its price is seven out of ten."

"I am not the one who makes the calls, but it seems to me that it was very competitive. Other solutions would have required dedicated hardware, so an additional CapEx has to be put in place. In that sense, it was definitely a more competitive option to go with Nutanix Files."

"Nutanix offers different pricing options, including Ultimate and Ultimate Pro."

"The solution’s pricing could be cheaper."

"Nutanix Unified Storage is competitively priced. There aren't any competitors that can do much better for the same price."

More Nutanix Unified Storage (NUS) pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

15%

Financial Services Firm

11%

Manufacturing Company

11%

Government

Computer Software Company

21%

Financial Services Firm

11%

Manufacturing Company

10%

Government

Computer Software Company

33%

Educational Organization

19%

Manufacturing Company

Financial Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

What do you like most about Pure FlashArray X NVMe?

Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use.

What is your experience regarding pricing and costs for Pure FlashArray X NVMe?

I am an engineer and am not aware of the setup cost.

What needs improvement with Pure FlashArray X NVMe?

Adding some functions to the product would be beneficial. Storage replication should be essential, and the analytics ...

What do you like most about IBM FlashSystem 9100 NVMe?

The storage serves the virtual environment. Most of our applications run in the virtual environment, and it serves ne...

What is your experience regarding pricing and costs for IBM FlashSystem 9100 NVMe?

The tool is expensive, though I do not know the specific licensing costs.

What needs improvement with IBM FlashSystem 9100 NVMe?

The solution's compression needs to be improved, as it's not the best. Furthermore, support from the partner could al...

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?

Nutanix Unified Storage isn't expensive.

What needs improvement with Nutanix Unified Storage?

The dashboard could be more customizable

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Product Reports

Pure FlashArray X NVMe

Download Pure FlashArray X NVMe product report

IBM FlashSystem 9100 NVMe

Download IBM FlashSystem 9100 NVMe product report

Nutanix Unified Storage (NUS)

Download Nutanix Unified Storage (NUS) product report

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X

IBM FlashSystem 9100, FlashSystem 9100

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

Overview

Pure Storage FlashArray//X is the world’s first enterprise-class, all-NVMe flash storage array. It represents a new class of storage – shared accelerated storage, which is a term coined by Gartner – that delivers major breakthroughs in performance, simplicity, and consolidation.

Pure Storage

IBM FlashSystem 9100 combines the performance of flash and Non-Volatile Memory Express (NVMe) end-to-end with the reliability and innovation of IBM FlashCore technology and the rich features of IBM Spectrum Virtualize - all in a powerful 2U enterprise-class storage system. Providing intensive data driven multicloud storage capacity, FlashSystem 9100 is deeply integrated with the software defined capabilities of IBM Spectrum Storage allowing you to easily add in the multicloud solutions that best support your business.

IBM

Nutanix Unified Storage provides high availability and seamless cloud platform integration, ensuring robust redundancy, scalability, and streamlined management. It supports hybrid cloud connectivity, enhancing storage security and performance.

Nutanix Unified Storage is designed for effective data protection across block, file, and object storage, offering features like ransomware detection and a centralized management interface through Prism Central. Users gain improved SLAs and IT cost savings through its efficient performance. Despite its user-friendly interface, there is a demand for enhanced security measures such as Multi-Factor Authentication and DLP. While its resilience is notable, users seek improvements in protocol compatibility, storage capabilities, pricing, and support processes.

What are the most important features of Nutanix Unified Storage?

User-Friendly Interface: Simplifies storage management and monitoring.
High Availability: Ensures continuous operation and reliability.
Seamless Cloud Integration: Compatible with platforms like Azure and AWS.
Robust Redundancy: Protects data against hardware failures.
Scalable Architecture: Easily adapts to growing data storage needs.
Ransomware Detection: Enhances data protection measures.

What benefits and ROI might users find in reviews?

Improved SLAs: Increased service reliability and performance.
IT Cost Savings: Reduces expenses through efficient resource use.
Enhanced Security: Stronger data protection and reduced risk.
Centralized Management: Easier control and monitoring from one dashboard.

Industries implement Nutanix Unified Storage for tasks such as file storage, database performance improvement, and storage solution consolidation. Companies deploying virtual machines, securing against ransomware, connecting hybrid clouds, and backing up data find it useful. It supports workloads like Citrix VDI, Kubernetes, and research data, assisting many organizations migrating from legacy storage for better cost efficiency and reduced data center footprints.

Nutanix

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company

Information Not Available

JetBlue, International Speedway Corporation, Volkswagen SAIC, Brighton and Hove City Council, Foresters Financial, Janus International Group, Cloud Comrade, Serco

IBM FlashSystem 9100 NVMe vs. Nutanix Unified Storage (NUS)