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IBM Spectrum Virtualize 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 Virtualize
Average Rating
8.8
Reviews Sentiment
7.3
Number of Reviews
39
Ranking in other categories
Software Defined Storage (SDS) (11th)
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.
AS
IT Specialist at Saudi Business Machines - SBM
Unified storage solution supports cross-vendor replication and diverse industries
One of the most valuable features of IBM Spectrum Virtualize is its virtualization capability. It allows for the creation of stretched clusters, which are crucial for running Linux-based workloads that need mirroring for boot disks. The solution also provides asynchronous and synchronous replication, supporting operations across different data centers. Its deployment options across public, private, and hybrid clouds add to its versatility.
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

"They are quite responsive and our local team was pretty good."
"All updates, upgrades, and hardware work are all performed on-line with no impact."
"The initial setup was straightforward in the way that it was a database vacuum storage."
"The most important feature of any storage array is its reliability, measured by its uptime."
"Most of the problems that we had in the past with the performance in IOPS have disappeared. It has been a great improvement for our customers' services."
"Pure Storage FlashArray has helped us decrease the storage footprint in a significant way; the dedupe and compression that they have is really good, and we're getting about four to ten in the deduplication and compression."
"Like I tell everybody else that I deal with, if you want to focus your time on doing more valuable things for your company, and you deal with storage on a day-to-day basis like I do, the best thing you can do is put Pure in your environment."
"It is an easy to use product for all of my team members."
"Although the GUI from the XIV was used (in my view), IBM has polished and refined the GUI providing a pleasant and easy to navigate GUI experience."
"The abstraction flair and the abstraction layer. We had a mixture of different storage arrays, and the wonderful thing about SVC is is that it normalizes all it into a single driver. A single view that all hosts see simultaneously."
"Migration from configurations where servers have storage provisioned from older SAN disk systems to newer storage systems is almost seamless using image mode migration techniques, with only a short outage of the servers."
"I love the SVC."
"We have reduced a lot of power and cooling requirements in the data center."
"The most valuable feature for me is its ease of use."
"There are many benefits to this solution. Storage virtualization and the ability to migrate massive amounts of data to other systems without impacting your client are the most valuable. It is non-disruptive for my users. We migrated 350 terabytes of data in one night to a new machine without a small system going down and a single user complaining about the performance. You have to fine-tune a lot of storage machines constantly for performance and for making sure that they are optimal, but IBM Spectrum Virtualize does this by itself. It does the adjustment on its own, and it does it right. That's what makes it different. I had a huge VSP from Hitachi, which is also a type of virtualization-based engine but with a decent size. It was a continuous performance-tuning exercise. I never had that issue with IBM Spectrum Virtualize."
"The most valuable feature is its reliability."
"The most valuable aspect of the solution is the fact that it doesn't need any downtime even when you are updating the product."
"The most valuable feature I have found to be the Acropolis Hypervisor (AHV)."
"I would encourage you to try out this product, as you will not regret it because of the stability of the technology and the other benefits you can get from Nutanix."
"You can be sure that whatever you patch is already compatible with the current firmware and the current version of the Acropolis that you're using."
"Regarding Nutanix AOS, fault tolerance is great."
"It is a good solution and it is easy to work on their platform."
"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."
"There are a lot of things I really like. Perhaps the best part is taking a snapshot of a virtual machine. It's very quick. Another useful part is replication and creating a protection domain: using the protection feature to replicate a machine to a remote site for DR purposes."
 

Cons

"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."
"It would be beneficial to have a separate pricing point for environments with lower performance requirements or less workload."
"We haven't seen ROI."
"They have a product, FlashBlade, which is their object storage integration, and that's something that we haven't integrated with yet. This might be an area for additional focus as it would play into scalability, because the very nature of object storage is that it's infinitely scalable."
"There are scenarios with very specific functionality around VMware integration particularly to do with the way we'd like to manage LUNs in VMware. The tools are pretty good but there's room for improvement there."
"We haven't seen ROI yet."
"It is way in excess of what we need. If anything, we could see a bit more speed. I'm just comparing it with what some of my colleagues who are implementing their own systems do."
"It's too early to tell if we've seen a reduction in total cost of ownership. The solution is expensive."
"There are big arrays now, and if a customer wants add more disks to it, you have to have another array. Adding disks to existing arrays is one of the most demanded things from our customers."
"The only thing I really don't like about Spectrum Virtualize is the application area."
"The only errors I find sometimes is the solution tells me I cannot operate it because a service has turned off, you can just go back to the VM, go to services, and turn back the services. However, this should improve."
"Technical support at IBM is actually not as great as it used to be. It seems like IBM has decreased the number of people who can support this environment."
"Tighter integration with cloud storage might be useful as a target for a variety of use cases."
"NBME support and support for a higher Fibre Channel lengths could be improved, but those are already on the roadmap."
"Because we're so big, they have a little bit of trouble tracking all the products and making sure we get connected with the reports, but, in general, they are very good."
"Scalability needs some work in some areas. The number of volumes needs to be increased drastically."
"I'd like to see an improvement in the notifications because it's not very useful as it is now and it's quite difficult to find out what the problem is when something goes wrong."
"The access speed needs to be improved."
"The solution doesn't support older systems, which can be a problem for some organizations who wish to implement it. It became a problem for us due to the fact that some of our systems are older."
"Frankly speaking, there are some issues."
"I believe that improvements could be made in regards to the DR in addition to deduplication and integration with others platforms. They also do not offer opportunities for network virtualization so it would be nice to see that in the future."
"One disadvantage of Nutanix Acropolis AOS is it doesn't support external storage. Connecting external SAN storage to Nutanix, it's not supported."
"The GUI of Nutanix Acropolis AOS could be improved that can be done from the OEM side. It's a very basic stable web browser that they're using. It is not very inclusive."
"I would like them to update their licensing to provide more features with their basic license."
 

Pricing and Cost Advice

"We are finding the TCO of flash to be lower than SSD implementations."
"We have seen a reduction in total cost of ownership (TCO)."
"We do not incur additional costs beyond the licensing fee."
"I would rate it a seven out of ten for pricing. It could be improved."
"I don't know the exact cost but it's around $1,000."
"Pure has been flexible with us on the pricing models."
"Pricing is very competitive, and it's better than other competitors."
"There are no fees for licensing. The hardware is paid for only once."
"Generally the bundled licensing is more cost effective and gives flexibility to the solution. Linking into the Spectrum Suite can also be advantageous, but depends on the scale of the enterprise."
"We would like the CPU cycle to save more on the licensing costs for us."
"This solution came as an additional cost for the TSM package we chose."
"I am very happy with the pricing. There is no comparison when it comes to pricing. I have looked at all solutions from EMC, Veritas, Hitachi, Dell, etc. None of them compares to IBM when it comes to pricing. I get great pricing from them."
"It has a lot of advanced functions for a reasonable price."
"Do a proof of concept, if you are not comfortable jumping in, but do it."
"We have struggled with Pure Storage, but people are understanding that much of Pure has been consumer grade SSDs. Therefore, when the customer is really understands what they are getting, they realize that IBM presents the same sort of value as existing vendors."
"I think it is a good value for the price."
"I know Nutanix and VxRail have similar prices and licenses. Nutanix is a go-ahead if AHV is used as hypervisor because it is already embedded in the price."
"The price of the solution is expensive. However, the price to performance is good. The cost for development and installation is very low."
"Nutanix is cheaper than Cisco HyperFlex, although it depends on the configuration because Nutanix can also be expensive."
"The overall cost depends on the contract of each customer and the discounts they have, but the price for the three-tier architecture can be slightly lower."
"In terms of the solution's licensing, it's quite comprehensive."
"NCI is quite expensive compared to other products. It would help us if Nutanix considered affordability when releasing new products. We have an annual license and are considering extending it for another year."
"We got the renewal done recently, and there was no cost involved."
"While cost may seem higher than your traditional 3-tier architecture, you need to look at the bigger picture. You're not just buying hardware here. You're buying a complete environment."
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Use our free recommendation engine to learn which Software Defined Storage (SDS) solutions are best for your needs.
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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%
Outsourcing Company
15%
Financial Services Firm
11%
Construction Company
9%
Performing Arts
9%
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 Business11
Midsize Enterprise4
Large Enterprise31
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 Virtualize?
IBM Spectrum Virtualize is not an expensive product. It offers flexibility with different flavors, whether appliance-...
What needs improvement with IBM Spectrum Virtualize?
IBM could improve IBM Spectrum Virtualize by bundling Storage Scale and Storage Virtualize into a single appliance. T...
What is your primary use case for IBM Spectrum Virtualize?
I primarily use IBM Spectrum Virtualize ( /products/ibm-spectrum-virtualize-reviews ) when I have different hardware ...
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
Pelephone, Sprint IT Enterprise Services
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 Virtualize vs. Nutanix Cloud Infrastructure (NCI) and other solutions. Updated: October 2026.
921,028 professionals have used our research since 2012.