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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
233
Ranking in other categories
All-Flash Storage (2nd)
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) (6th), HCI (4th), Software Defined Data Center (SDDC) (3rd), 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

"Even if it costs a little bit more, you do get more for what you pay."
"Everpure FlashArray is probably not cheap storage, but it provides great performance, scalability, and everything a customer needs."
"Go with Pure (or a flasher rate which is similar) because of the ease of management and performance."
"Pure Storage FlashArray has helped us to improve the reporting and the billing cycle."
"I am exceptionally happy with the product and the way it works."
"The Direct FlashArray stands out as one of the best features in the market. The Pure1 storage management lets us see the details about utilization and everything else for all 40 storage boxes in one place."
"The deduplication in the array combined with its snap technologies allows the product to be remotely/manually controlled or scheduled."
"The security operating system is its most valuable feature because it's very simple, easy to use, and operate. You don't have to do very serious training to operate this equipment. It's user-friendly and pretty straightforward."
"We use GPFS Scale for parallel file access, the file management, and it's an essential part of our operations."
"It is incredibly scalable and stable."
"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."
"We use it for our data over multiple systems, and at the same time it is a shared file system that works pretty well for the most part."
"Its great servicing high availability. That is what it is used for."
"There is nothing else that even compares to Spectrum Scale."
"The most valuable feature is the ability to share files across different platforms."
"Prism Central allows managing the cluster from a single pane of glass, and it allows a deeper dive into the solution."
"It's quite easy to scale, and you have the option to have distributed nodes everywhere around the world that work as one. You can also have a solution for small branch offices with only two nodes for redundancy, and that's good enough to start."
"The feedback provided by our customers has been nothing but excellent."
"The initial setup was quite straightforward."
"The most valuable aspect of the solution is the fact that it doesn't need any downtime even when you are updating the product."
"It is now our single most powerful server that is easily scalable and has an HTML5 site that manages all aspects of the system."
"Since it is a high convert solution, we don't need any downtime because all the VMs are being moved to another node, so no downtime is required and it is very stable and reliable."
"We now increase the capacity of our datacenter without having to add more square footage, while increasing its horsepower, allowing us to run more servers utilizing less space than before."
 

Cons

"FlashArray's capacity for forecasting should be improved because it needs to be a bit more current. I think it's bundled with the deduplication and other compression factors. We need more user interfaces for forecasting in this software and more interfaces need to be integrated with this array management tool."
"I would like to migrate to the cloud in the future and know how that would actually work with this product."
"The solution is expensive."
"The difference in pricing could become a problem for Pure because the commoditization of the solutions could lead to a different price being a problem."
"It needs to improve its price."
"I think the pricing for Pure Storage FlashArray is the major issue because all the great things come with the price, and a lot of customers simply are not willing to accept it."
"On a couple of occasions, the waiting time for an upgrade has been pretty substantial."
"We need to add more storage in Pure Storage FlashArray with the cluster mode activated for us to have better performance."
"I believe there is no graphic user interface, so they should include it."
"The biggest problem is that it is not able to provide block storage."
"We do have some issues where Spectrum Scale does not work as expected."
"The solution's pricing could be better."
"There can be improvements in fault tolerance and making erasure coding faster."
"Initially, stability was a concern as we encountered numerous issues and errors."
"We do not feel as a company that the product can grow with us anymore, so we are not going to use it anymore."
"The pricing and licensing model for this solution are complex and it is sometimes difficult to explain it to customers."
"The software-defined networking should be improved. It is quite substandard as compared to the VMware variant."
"The compatibility and integration of Nutanix Acropolis AOS could be improved. For example, we have a WAF application firewall and it does not work on this solution. Not all the OS's run on AOS. You need to have a newer version of an operating system if you want Nutanix to perfectly run all the different options."
"The cost of the solution is too expensive. There are other options, such as VMware, that are offered for less money. In Latin America, it seems to be overpriced for the market."
"The access speed needs to be improved."
"It would be nice to be able to converge the network switch required to connect the Nutanix nodes together."
"Customer Service: It's excellent, but expensive. Technical Support: It's excellent, but expensive."
"One of the improvements I would like to have is related to naming. It is getting confusing because they are using three-letter acronyms, which are more or less misleading. What I do not like is that they changed names and reused names. They had a meaning in the past and they are still using the names for something similar."
"It would be great if it could emulate some of the features that their competitor VMware has, for example port mirroring or Netflow output at hypervisor level."
 

Pricing and Cost Advice

"We would like them to improve the pricing, so we could put them to use some more product, like backup or long-term storage. In the future, if the price goes down, then we could buy different types of products."
"The best features come included without any additional cost."
"The price of the solution can be a bit expensive. There is an additional fee for support."
"I have had a couple of customers who have complained about the cost. It can be a little more expensive than some of the other platforms. After it has been installed, I have never had a customer say, "I wish we wouldn't have spent all that extra money." They have always been happy with the product after it has been installed. They might be on the fence about it because of the price, but everybody who I have ever seen install it, they are always happy with it."
"There is always room for negotiation."
"The pricing is reasonable."
"Pure Storage is expensive. It comes with features, so you get what you pay for. It is expensive compared to our old storage systems, but from the amount of human effort that you have to pay to babysit a storage system, it reduces that. I don't know if the TCO is reduced, but it's not a concern for us."
"There is an annual or perpetual license required for this solution."
"The licensing model is complex and depends on factors such as the number of processing cores and the amount of storage."
"The solution is costly but reliable."
"The licensing is based on the number of terabytes."
"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."
"Pricing for Nutanix Acropolis AOS is higher. This is one of the reasons why we were looking into other options."
"This product is less expensive than some of the competing HCI solutions."
"The pricing of Nutanix is not cheap but there are options available."
"I think it's cheaper than VMware in terms of cost."
"I would rate the price seven out of ten with ten being the most expensive."
"There are a lot of features included with Nutanix that cost a lot with other companies."
"The solution could be a little less expensive."
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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%
Comms Service Provider
10%
Financial Services Firm
10%
Outsourcing Company
9%
Financial Services Firm
17%
Construction Company
8%
Comms Service Provider
7%
Manufacturing Company
6%
Outsourcing Company
11%
Manufacturing Company
9%
Computer Software Company
8%
Financial Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business73
Midsize Enterprise38
Large Enterprise161
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?
When comparing cost, I find that the cost is either the same or slightly higher, but that is returned by the ease of ...
What needs improvement with Pure Storage FlashArray?
The only thing I think could be improved is price. The price is the main concern for our customers.
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: October 2026.
920,769 professionals have used our research since 2012.