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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) (4th), 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

"The scalability is good."
"I am very satisfied with this solution and I would recommend it to others."
"The intuitive way of managing storage is what I appreciate about Pure Storage FlashArray, along with the clever use of flash modules, and absolutely the data reduction, because they are using that in a very clever way to do compression and deduplication."
"The solution has probably reduced my power use substantially."
"We clearly have seen the difference between having storage on Dell EMC or NetApp versus what we have now on Pure Storage, and the investment was a clear win for us."
"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."
"It is always out of the box, and ready to use."
"We were actually able to do multiple upgrades, including head upgrades and moving between the platforms, M20 and M50, over the years. We have never once lost a ping and have never had an outage due to an OS upgrade or a complete head upgrade."
"We are using it for monitoring all of our storage."
"We tested a complete site loss with the initial loss of the complete data center and the system was always up."
"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."
"Allows us to share files across multiple environments."
"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."
"It is a scalable solution."
"The high performance of the solution is its most valuable aspect; if you compare it to other storage solutions, it is much better."
"I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system."
"Hyper-convergence makes the whole datacenter simpler; I don’t need to manage servers, SAN, and storage as I used to, but instead manage everything from one simple and complete dashboard."
"Our environment is now consolidated into one solution, making it easier to get support because we no longer need to go to multiple vendors and can just have one point of contact."
"Nutanix was just so much easier to manage and deploy."
"The snapshots, cloning, and replication are all effective in helping to reduce downtime. It can replicate cluster data for disaster recovery and it provides high availability in case a node or a disk fails."
"The performance and stability of Nutanix is so good, it is almost unbelievable."
"Nutanix is a converged system with web-scale technology, and the technology is invisible to the IT department so you can focus on your business instead of making IT a problem in your organization."
"The most valuable feature is the solution's ease of upgrading."
"Acropolis AOS's networking concept is excellent."
 

Cons

"The only thing is that we've had to upgrade controllers a few times because we ended up wanting to use more stuff on here."
"I would like to see more cloud integration."
"I would like some performance analytics which go deeper than today. It should be specific to some hosts and applications. This would be good."
"If we suddenly dump large amounts of data onto the storage system, it takes a while to process it."
"I would love for them to have a hyper-converged solution."
"Automation could be simplified."
"I think replication is one area that still needs improvement. Earlier, Pure Storage FlashArray only had IP-based replication. There was no API-based replication, but they have enhanced the feature now. However, they need to work on API replication for C-type of arrays."
"I would love to see a true one click upgrade solution."
"I wish there were some graphical user interface to access the GPFS file system creation and monitoring."
"Making it a little easier to add bad file sets would help. There is a transition to how you add storage and how you add a file set, so making that a little smoother would probably be my recommendation."
"We do have some issues where Spectrum Scale does not work as expected. We have seen our Spectrum Scale servers go down unexpectedly, but because we have a cluster, it does not take out the entire organization."
"The pricing and licensing model for this solution are complex and it is sometimes difficult to explain it to customers."
"The solution's pricing could be better."
"They should probably simply the Red Hat implementation portion. This portion was not as straightforward as I would like it to be."
"I believe there is no graphic user interface, so they should include it."
"There is room for improvement in the web interface. There could be more information available, such as charts and graphs to monitor performance."
"They should lower the price. If they did they would fall into a more competitive market because the price does scare a lot of potential customers away when they get the quote."
"This product would be improved if it included a hybrid cloud solution."
"The scalability of the solution had some issues because there were many VMs and the replication ran into some bottlenecks. It was an issue that was known to Nutanix and it was not disclosed to the customer."
"Pricing transparency: Software and hardware should be separate items."
"An area for improvement would be the cyber security features."
"In Thailand, there really isn't a cloud version of Nutanx available to us."
"There should be a little more access to Nutanix files."
"The product could be improved with more security. The product needs a bit more experience in the market. I think you don't have the possibility to add other hardware. It could be improved with the ability to add and extend."
 

Pricing and Cost Advice

"It's expensive, but you get what you pay for."
"The price of Pure Storage FlashArray is expensive."
"When I last looked, the prices were reasonable, and we could get an excellent array for about $60,000."
"There should be quite a bit of reduction of TCO with just licensing (and stuff) because we run the VM environment off it."
"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."
"It could always be lower, but it's okay."
"For pricing, you have to take into account their performance on deduplication and compression in a $/GB comparison."
"It was less expensive than some of the alternatives. It's not as though it was a premium price to get that kind of quality. It's a very competitive product from a price perspective..."
"The licensing model is complex and depends on factors such as the number of processing cores and the amount of storage."
"The licensing is based on the number of terabytes."
"The solution is costly but reliable."
"Nutanix is cheaper than Cisco HyperFlex, although it depends on the configuration because Nutanix can also be expensive."
"The pricing is very competitive when compared with other vendors. As long as Nutanix goes forward with the same price and same type of offering, it will definitely have a large number of customers adopting the same solution very soon."
"The price of the solution is high."
"The price of the solution is expensive. However, the price to performance is good. The cost for development and installation is very low."
"If a customer has been using VMware, the difference in pricing is lower. However, if they are looking to use the VMware, the price can be much higher depending on the license."
"My advice is to get the ultimate license, as it is worth it."
"The solution could be a little less expensive."
"It is less expensive than the VMware alternative."
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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
12%
Financial Services Firm
10%
Comms Service Provider
9%
Construction Company
9%
Financial Services Firm
16%
Construction Company
8%
Manufacturing Company
6%
Educational Organization
6%
Outsourcing Company
11%
Manufacturing Company
9%
Computer Software Company
9%
Financial Services Firm
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: September 2026.
914,262 professionals have used our research since 2012.