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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

"The most valuable feature is it never goes down. We can expand and create volumes."
"The most valuable features in Pure Storage FlashArray are deduplication and active cluster."
"Reliability and performance are its most valuable feature."
"The first year, we started out with one or five terabytes and it took what was 20 terabytes of storage down to less than one terabyte."
"Even if they weren't one of the fastest arrays in the entire industry, I would use them for their support model and ease of use."
"The most valuable feature of Pure Storage FlashArray is its high stability level."
"The stability of Pure Storage is very very good."
"This is a very good product at a very good price, with very good support."
"The most valuable feature is the ability to share files across different platforms."
"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."
"There is nothing else that even compares to Spectrum Scale."
"It is incredibly scalable and stable."
"GPFS monitoring is the best feature."
"The high performance of the solution is its most valuable aspect; if you compare it to other storage solutions, it is much better."
"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."
"The profile share is a valuable feature."
"It consolidates our servers, and improves our electricity consumption and cooling as well."
"Their Google operating system is more mature, so their results are much better."
"In addition to the hyper-converged infrastructure, most of our clients are pleased with Acropolis' built-in replication in terms of the DR setup. Our clients also like Prism Central's advanced management and analytics, and many find Nutanix Flow and playbooks incredibly useful."
"The stability of the product is excellent."
"It's easy to manage with the one-click hypervisor and firmware upgrade, and we can also store data more efficiently with compression and deduplication."
"Switching to Nutanix flipped the value proposition around, and suddenly one technical person qualified in Nutanix was all that was needed."
"The scalability is great."
"Before using this solution, we had performance issues with our virtual desktop environment and now our virtual desktops work very well, as if we were working on laptops or desktops."
 

Cons

"Just some nit picky stuff, like allowing servers and volumes to be grouped. Therefore, it would easier to work with them in the GUI."
"The connectivity needs improvement. You do not have the possibility to have a file and block connectivity at the same time on the same machine. It has limited ability to do so."
"I would like to see more cloud integration."
"It needs to improve its price."
"Pure Storage can improve FlashArray by providing more logging visibility to customers. Currently, there is no log visibility."
"Scalability is not an easy option for Pure Storage, so you have to be very careful when you are getting that product for you."
"CIFS and SMB Shares cannot be mounted directly."
"The solution needs an integrated NAS platform, file platform."
"The biggest problem is that it is not able to provide block storage."
"I believe there is no graphic user interface, so they should include it."
"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."
"This is probably the biggest challenge, getting everything upgraded, because it just takes time. We wish it was a faster solution to be able to do everything at once, but you have do each node individually. The more nodes, the longer it takes."
"They should probably simply the Red Hat implementation portion. This portion was not as straightforward as I would like it to be."
"There is room for improvement in the web interface. There could be more information available, such as charts and graphs to monitor performance."
"There can be improvements in fault tolerance and making erasure coding faster."
"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."
"The software-defined networking should be improved. It is quite substandard as compared to the VMware variant."
"There is a feature that exists used for disaster recovery, but it requires an extra license. It should be included with the regular normal standard license."
"Nutanix now supports four hypervisors but they are not all at feature parity."
"The solution does not lend support when we connect with a few dongle licenses."
"This solution would be improved with built-in integration with Rubrik."
"I think some of the tasks that must be done using CLI could be added to the web interface."
"Limits on increasing space with the inability to have or attach external storage."
"The One-Click Upgrade process could/should offer the ability to integrate with 3rd party drivers. For example, we use NVIDIA Grid graphics cards. It would be amazing if, during the One-Click Upgrade process, we could "slipstream" additional VIB drivers for ESXi into the upgrade process."
 

Pricing and Cost Advice

"Its price is almost double than any other flash storage solution."
"It's expensive, but you get what you pay for."
"Pure Storage is all-flash, so this sometimes tends to make it a bit more expensive in the beginning."
"It is cheaper than NetApp."
"The price of Pure Storage FlashArray could always improve. They are still more expensive than some alternative offerings. Cost is always a concern and when there is a battle they tend to be more expensive."
"There are no licensing fees or other costs."
"I would rate the pricing of Pure Storage FlashArray a five out of ten. It is expensive but not too much."
"We do not incur additional costs beyond the licensing fee."
"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 licensing is based on the number of terabytes."
"Many of my customers have issues with Acropolis' licensing model because they are charging the customers based on two things— the CPUs and the capacity in the solid stack disk — and that's a problem. Nutanix's competitors are not licensing that layer, so this is something that they should change. They should abandon this licensing model because it's too complex. Technical support is bundled with the subscription."
"Nutanix Cloud Infrastructure's core licensing needs to have an upper limit since processors are coming out with incredible numbers of cores on them."
"The software only licensing model is priced normally, but the licensing model that comes with hardware is priced very high. You can choose to pay the license yearly, or you can pay every three years, or every five years."
"The price of the solution is high."
"When compared to the competitors, the price is reasonable."
"Cost-wise, it is very good. It is like the hypervisor cost is not there. We only need to pay for the system and AOS licenses."
"Nutanix Cloud Infrastructure could be cheaper. It's costly to upgrade the solution. There are no additional costs aside from the license."
"Its licensing is fine. They provide the flexibility to choose from different options. You can go with the standard plan. You can go with the pro or platinum plan. Generally, our clients go with the pro licenses, but if you go for the platinum license, you get even more capabilities. Their starter license is also quite good."
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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
17%
Manufacturing Company
8%
Construction Company
7%
Government
7%
Computer Software Company
9%
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: August 2026.
909,099 professionals have used our research since 2012.