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IBM Spectrum Scale vs Nutanix Cloud Infrastructure (NCI) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Dec 5, 2024

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

Pure Storage FlashBlade
Sponsored
Ranking in Software Defined Storage (SDS)
8th
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
39
Ranking in other categories
All-Flash Storage (16th), File and Object Storage (8th)
IBM Spectrum Scale
Ranking in Software Defined Storage (SDS)
10th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
14
Ranking in other categories
Cloud Software Defined Storage (2nd)
Nutanix Cloud Infrastructur...
Ranking in Software Defined Storage (SDS)
6th
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
199
Ranking in other categories
HCI (5th), Software Defined Data Center (SDDC) (1st), Hybrid Cloud Computing Platforms (4th)
 

Mindshare comparison

As of November 2025, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 3.8%, down from 4.6% compared to the previous year. The mindshare of IBM Spectrum Scale is 3.9%, down from 4.6% compared to the previous year. The mindshare of Nutanix Cloud Infrastructure (NCI) is 6.3%, up from 5.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Software Defined Storage (SDS) Market Share Distribution
ProductMarket Share (%)
Nutanix Cloud Infrastructure (NCI)6.3%
Pure Storage FlashBlade3.8%
IBM Spectrum Scale3.9%
Other86.0%
Software Defined Storage (SDS)
 

Featured Reviews

MikaelHellström - PeerSpot reviewer
Has handled backup storage needs reliably and supports seamless upgrades
In environments requiring high throughput and low latency, Pure Storage FlashBlade provides high throughput and normal latency, but we do not have any application that requires low latency right now, so the latency of three to five milliseconds is considered kind of high. Pure Storage FlashBlade's ability to integrate with enterprise applications is not important for us, as we only want to present an S3 bucket for our backup, which we have done, and it works very fast. We use the Purity software's data reduction techniques; we have a backup software that compresses everything before sending it to the S3 bucket, achieving a data reduction of 1.1 to one. I would recommend Pure Storage FlashBlade to other companies because it's a very fast and scalable solution for anyone who needs it. On a scale of 1-10, I rate this solution an 8.
Sachin Prakash - PeerSpot reviewer
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.
MahendraPanchotiya - PeerSpot reviewer
Offers a unified platform, reduces downtime, and simple updates
Nutanix offers a unified platform for managing databases, virtual machines, and applications. This simplifies management by consolidating everything into a single interface. While Nutanix may have a higher upfront cost compared to other hypervisors, it can significantly reduce the resources needed for infrastructure management. With our previous hypervisor, we needed nearly ten IT personnel. Nutanix has allowed us to streamline our team to just three members. We use a combination of database technologies, including SQL databases and web servers such as IIS, BHP, and NGINX. Nutanix features helped our organization reduce downtime. I don't recall the last time we had downtime related to Nutanix because it is such a stable product. Nutanix, a reliable product, helps us streamline our processes, which in turn improves company revenue. We began to see the benefits after two years, with a 40 percent reduction in operational costs. We migrated 200 servers from AWS to Nutanix. Nutanix may not consolidate applications, but it helps us run them more efficiently on its platform. Updating is simple with one click. I would rate the updating processes 10 out of 10. Adding compute and storage on demand is not difficult. However, we need to factor in the existing and new firmware and software requirements.

Quotes from Members

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

Pros

"Speed and ease of use are the two most valuable features."
"It has absolutely simplified our storage because the dashboards on the consoles show a clear understanding of where you are, and it is also very easy to provision. This been a big help for our teams."
"We have integrated it with VMware. The integration process is pretty good. Especially with VMware, it helps with the capacity of it."
"It performs well and it is also very fast."
"The snapshots, replication, and the ability to have immutable blades are the most valuable features. You're putting data snapshots out in those blades, and they cannot be touched. Its performance is great."
"Approximately 40% to 50% of my time is saved using Pure Storage FlashBlade compared to different products."
"I would rate Pure Storage FlashBlade a ten out of ten."
"The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power outages when we need to quickly move data between different data centers. It ensures efficient replication and helps maintain our data centers' uptime."
"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."
"We can have multiple systems within the same file system."
"We are using it for monitoring all of our storage."
"GPFS monitoring is the best feature."
"It is incredibly scalable and stable."
"The most valuable feature is the ability to share files across different platforms."
"It has been pretty reliable throughout the years. As far as capacity is concerned, it can handle most heavy loads."
"SRM capabilities for replication have been proven reliable and very useful for our organization."
"The scalability, performance, and licensing model are the most valuable features."
"Nutanix Acropolis AOS has very good stability."
"In general, being able to patch and not having to pay for SanDisk is the best thing about hyper-converged."
"You need to send commands through the command-line interface(CLI). This could be improved. The commands are done better in VMware."
"The initial setup is straightforward."
"It consolidates our servers, and improves our electricity consumption and cooling as well."
"The infrastructure has improved our turnaround time."
 

Cons

"I would also like to see better support for CIFS workloads."
"In terms of technical support, the experience has been mixed. The support is done through email and is not that great, making it a very problematic area I've been dealing with for over four years."
"I have not seen ROI."
"We initially encountered challenges with the assembly process due to issues with the documentation required during setup, an area where Pure Storage needs improvement."
"It would be nice if you could store file-based in the same box with the same technology."
"The features provided for SMB customers are limited."
"I want efficiency. FlashBlade doesn't have efficiency now."
"Compared to, for example, Hitachi NAS, the solution is not mature at all. It's just in its infancy as far as technology goes."
"Initially, stability was a concern as we encountered numerous issues and errors."
"I wish there were some graphical user interface to access the GPFS file system creation and monitoring."
"There can be improvements in fault tolerance and making erasure coding faster."
"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."
"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 biggest problem is that it is not able to provide block storage."
"Integration with other vendors is not available."
"The product requires a lot of resources."
"One disadvantage of Nutanix Acropolis AOS is it doesn't support external storage. Connecting external SAN storage to Nutanix, it's not supported."
"Nutanix Cloud Infrastructure lacks compatibility with certain older processors."
"I'm not very technical, so I don't know if there are any features that are really lacking. Our customers seem pleased with it, and I haven't heard of any downsides."
"Nutanix Acropolis AOS is new technology in a competitive market. Pricing is too high for a new product and requires better discounts to be able to compete with IBM, Dell EMC, and HP."
"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."
"I'm sure there are a lot of things that could be improved, but I'm actually very satisfied with this product. There may be some possibilities to move the virtual server dismounting points or to move the server from one group to another, but I can't think of any special improvements or update features."
"There is a lot of functionality in Prism Central, but sometimes you want to see those features in Prism Element."
 

Pricing and Cost Advice

"Support is a separate line item. Support is a different cost, but whatever your support is now, that's what you're going to pay forever. If your support's $100 today, six years from now it's $100. It doesn't fluctuate unless you upgrade it, or change it, etc."
"I feel that the price could always be lowered."
"The pricing for FlashBlade is between cheap and moderate."
"Our customers have seen a reduction in TCO."
"The price could be cheaper."
"The price is a little high."
"We used a reseller for the purchase."
"I understand that it is competitively priced compared to other brands."
"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."
"Setup cost is minor, pricing is quite a bit (we have a 7-node-cluster for about 450K EUR with 2 vGPU-nodes for Citrix) but that includes hardware, software, and support."
"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."
"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."
"AHV is free! This is a great feature that should be taken advantage of."
"The solution could be a little less expensive."
"Pricing for Nutanix Acropolis AOS is higher. This is one of the reasons why we were looking into other options."
"Our customers are on three years license to use Nutanix Acropolis AOS. The price of the solution includes all features and support."
"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."
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Comparison Review

it_user244362 - PeerSpot reviewer
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
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
10%
Government
7%
Financial Services Firm
18%
Manufacturing Company
10%
Computer Software Company
10%
Government
8%
Computer Software Company
16%
Manufacturing Company
8%
Financial Services Firm
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
By reviewers
Company SizeCount
Small Business6
Large Enterprise8
By reviewers
Company SizeCount
Small Business91
Midsize Enterprise77
Large Enterprise82
 

Questions from the Community

What do you like most about Pure Storage FlashBlade?
The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power out...
What is your experience regarding pricing and costs for Pure Storage FlashBlade?
The pricing of Pure Storage FlashBlade is expensive compared to other products I used from other companies in the pas...
What needs improvement with Pure Storage FlashBlade?
I believe there is not much improvement needed because they have everything we need, but the interface is a little bi...
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

No data available
No data available
Nutanix Acropolis AOS, Nutanix AOS, Nutanix Acropolis
 

Overview

 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
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 2025.
872,922 professionals have used our research since 2012.