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IBM Spectrum Scale vs Nutanix Cloud Infrastructure (NCI) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

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 Spectrum Scale
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
14
Ranking in other categories
Software Defined Storage (SDS) (10th), Cloud Software Defined Storage (1st)
Nutanix Cloud Infrastructur...
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
199
Ranking in other categories
Software Defined Storage (SDS) (5th), HCI (2nd), Software Defined Data Center (SDDC) (1st), Hybrid Cloud Computing Platforms (5th)
 

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.
Sachin Prakash - PeerSpot reviewer
Assistant Consultant at a tech vendor with 10,001+ employees
Has optimized performance using cluster deployment and distributed file access but needs better visibility into network dependencies
IBM Spectrum Scale being software-based storage allows users to utilize any hardware supported or defined by IBM without dependency on physical hardware provided by IBM. This is one of the features I appreciate most because if you have existing infrastructure at your site but don't want to reinvest in hardware, you can purchase IBM Spectrum Scale software and deploy it as software-defined storage. Users can comfortably access data from their host to the storage host without relying on new network setup when deploying GPFS as it uses the existing corporate network. However, high-speed ethernet network is required. By adding switches to the same network where client hosts reside and deploying GPFS storage array, any file system created on the storage cluster can grant export permissions determining which hosts can access specific file systems. These hosts can directly mount them as remote file systems. The process is simpler compared to defining IQN for providing access to client hosts. Creating a cluster for clients with virtual machines or physical Linux/Windows machines requires installing GPFS services on client nodes, which creates a client cluster. Access is defined on the storage cluster for the particular client cluster, allowing all hosts in that client cluster to mount file systems with granted permissions.
JD
Dsi at OFFICE PUBLIC DE L HABITAT DE ROUEN
Hyper-converged storage has improved performance and now supports high redundancy for our VMs
Nutanix Cloud Infrastructure (NCI) was transparent because we were on a regular infrastructure before. We went on NCI and were able to improve performance, but it did not really change how things worked. The performance was really better for applications and access times to the data. I regularly looked at the analytics to see what was going on in my servers and what it was saying to optimize performance. It was pretty interesting because it could analyze and give insights on how to get things working better. In the latest versions, the Prism interface has been replaced by Prism Central. This requires another machine to be deployed to manage the servers.

Quotes from Members

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

Pros

"After moving to Pure Storage, I have noticed that our databases are considerably faster and our performance has improved by at least four times."
"From an investment standpoint, the support staff I require for it is greatly reduced, so I don't have the in-depth requirements that I had on other products."
"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."
"The most valuable features are the replication of data and the continuous snapshot that we can take from the disc."
"It's easy to use, and the maintenance upgrades to get free controllers work really well."
"Despite the overuse of buzzwords and re-classifications, the storage industry has actually seen dramatic improvements over the last 3-4 years."
"This improves our organization because we can just set it up and we forget about it, everything works, and we do not need to worry about storage or bandwidth issues."
"It allows engineers to focus on other things rather than doing the more manual tasks. It automates tasks, so the ease of use is extreme. It simplifies the storage."
"It is incredibly scalable; you can add more storage to it, add more file sets, and add it to more servers, making it a robust product that should be able to expand with us."
"I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system."
"Technical support has been very helpful, and they provide us with pretty good solutions that we can implement moving forward."
"Over the past five or ten years, IBM has developed this solution and it has improved a lot."
"I would rate my overall experience with IBM Spectrum Scale as nine out of ten."
"It makes our file system sharing a lot easier, even across different continents. We have had file systems shared across different continents with no performance degradation."
"It has been pretty reliable throughout the years. As far as capacity is concerned, it can handle most heavy loads."
"Spectrum Scale is one of the most important products in our environment now."
"I have found the solution to be stable."
"I definitely find the reduced power consumption very valuable."
"Management is simple"
"The interface is very good. Before we used this solution, we had separate storage and switches, but with the hyper convert, it's all in one."
"Simplified management: It provides us more time to work on other tasks."
"It allows us to have a cloud-based ecosystem."
"Nutanix has improved my company because it's 100% stable and the simplicity of management is amazing."
"The technical support is excellent."
 

Cons

"Pure Storage FlashArray has not helped to decrease the total cost of ownership, and I believe our total cost has probably gone up, but that's balanced by our increased amount of data and number of use cases."
"Data reduction is an area that needs improvement. There is a garbage collection service that runs but during that time, system utilization increases."
"I would like to see more detailed reporting on the data. However, it would be nice to know what are the exact VMs usage after deduplication and/or what that VMs actual latency and bandwidth is, outside of VMware."
"The internal garbage collection process has been fixed recently in some OS updates so it is more efficient but that could be just a little better."
"It's expensive, but you get what you pay for."
"It's not so scalable. It's got moderate scaling capabilities right now. The clustering technology needs a bit of work, they need to improve that."
"I would like to migrate to the cloud in the future and know how that would actually work with this product."
"There is not a great need for improvement, but better pricing could be beneficial."
"There can be improvements in fault tolerance and making erasure coding faster."
"I wish there were some graphical user interface to access the GPFS file system creation and monitoring."
"Maybe it needs integration with HA."
"I believe there is no graphic user interface, so they should include it."
"We do not feel as a company that the product can grow with us anymore, so we are not going to use it anymore."
"We do have some issues where Spectrum Scale does not work as expected."
"There is room for improvement in the web interface. There could be more information available, such as charts and graphs to monitor performance."
"It would be helpful if there was a graphical user interface that could walk you through the deployment process. The instructions surrounding setup aren't the best. They need to be more step-by-step."
"I would like to see Acropolis add the ability to migrate VMs between storage containers. I don't know if they've added this in the latest versions, but I haven't seen it yet. It's mainly about AHV. When we use VMware, we can move between storage containers. In VMware, it's just like regular storage, and we can move it."
"There is room to enhance the micro-segmentation."
"The scalability of Nutanix Acropolis AOS needs improvement."
"While the product is great, in certain situations we find it less easy to deal with than how it is presented."
"It's lacking in some features but overcompensating in others."
"If you are not a Nutanix Customer, Partner or Employee, it is going to be very challenging getting your hands on their technology, KB articles and documentation."
"The file services that they also provide need some more features, like on the Windows file server."
"I would like to see more Kubernetes and container-related workflows and multiple cloud-partner management. I would also like to see how they will synergize all these AI/ML functionalities that are available on other platforms."
 

Pricing and Cost Advice

"We purchased a license to use this solution and we pay for the storage ourselves."
"The cost was initially high, but once more people were using it, the costs came down. This was because the University was reselling it to other departments."
"The price is too high."
"We implemented Pure Storage FlashArray nine years ago when it was new to the market and obtained it at a preferential price."
"Pure is not a cheap product. It is not something that is inexpensive. But, the total cost of ownership tends to be lower than with other solutions, because you don't need a lot of expertise, you don't need a lot of training or very expensive engineers or very expensive consultants."
"It is a more expensive solution, but it is worth it. You are getting what you paid for."
"When we bought the unit, we bought per capacity. So, the licensing is per capacity, and the only thing that we have to buy every year or every three years is maintenance. Included in that maintenance is the upgrade of the controllers every three years at no cost to us."
"They have a standardized fee; it's been the same price for 10 years straight. I am happy with the price — I think it's good."
"The licensing is based on the number of terabytes."
"The solution is costly but reliable."
"The licensing model is complex and depends on factors such as the number of processing cores and the amount of storage."
"The price is good but I think there is still room for improvement on the price."
"Nutanix price is high because it bundles all the components into single deals rather than allowing you to select the features that you want/will use."
"Pricing varies greatly between license and editions."
"It is less expensive than the VMware alternative."
"Its licensing model is easy, but the bad thing is that we need to pay for the whole capacity at once. With VMware vSAN, we only have to pay for the capacity that we are using, which is not the case with Nutanix. So, we have more overhead for the licensing cost with Nutanix."
"It is not cheap, but if you look at the return on investment and the total cost of ownership, it is worth the price."
"Its price is fine. I can't really complain about that."
"The price of Nutanix is lower than other products."
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Comparison Review

it_user244362 - PeerSpot reviewer
Managing Consultant with 51-200 employees
Aug 30, 2015
Nutanix vs. VMware EVO:RAIL vs. FlexPod
Originally posted at www.storagegaga.com/dont-get-too-drunk-on-hyper-converged/ I hate the fact that I am bursting the big bubble brewing about Hyper Convergence (HC). I urge all to look past the hot air and hype frenzy that are going on, because in the end, the HC platforms have to be aligned…
 

Top Industries

By visitors reading reviews
Manufacturing Company
13%
Financial Services Firm
11%
Construction Company
10%
Comms Service Provider
7%
Financial Services Firm
16%
Manufacturing Company
8%
Construction Company
7%
Government
7%
Computer Software Company
10%
Manufacturing Company
9%
Financial Services Firm
8%
Outsourcing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business71
Midsize Enterprise38
Large Enterprise159
By reviewers
Company SizeCount
Small Business6
Large Enterprise8
By reviewers
Company SizeCount
Small Business93
Midsize Enterprise76
Large Enterprise88
 

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 Spectrum Scale?
IBM Spectrum Scale functions as software-based storage, allowing users to utilize any hardware supported or defined b...
What needs improvement with IBM Spectrum Scale?
The system relies heavily on ethernet networking, and when issues occur, we must consult with the network team to inv...
What is your primary use case for IBM Spectrum Scale?
My personal use of this product is for parallel writing or reading files.
How do I choose between Cisco Hyperflex HX Series and Nutanix Acropolis AOS?
Cisco HyperFlex HS series vs Nutanix Acropolis AOS Cisco HyperFlex gives extended hyper-convergence functions from ...
What makes Nutanix Cloud Infrastructure (NCI) worth using?
NCI is a product with many tools and services but the one that, in my opinion, makes it better than similar products...
Have you received reliable help from Nutanix Cloud Infrastructure's support when you contacted them?
NCI is one of the best out there. For any software, no matter how good it is, technical support makes it or breaks it...
 

Also Known As

Pure Storage FlashArray
No data available
Nutanix Acropolis AOS, Nutanix AOS, Nutanix Acropolis
 

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
Information Not Available
St. Lukes Health System, the City of Seattle, Yahoo! Japan, Sligro, Empire Life, Hyundai AUS, and many others.
Find out what your peers are saying about IBM Spectrum Scale vs. Nutanix Cloud Infrastructure (NCI) and other solutions. Updated: June 2026.
908,834 professionals have used our research since 2012.