IBM Spectrum Scale vs Nutanix Cloud Infrastructure (NCI) comparison

IBM Spectrum Scale vs. Nutanix Cloud Infrastructure (NCI)

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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

Mindshare comparison

As of October 2025, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 4.1%, down from 4.5% compared to the previous year. The mindshare of IBM Spectrum Scale is 3.9%, down from 4.7% compared to the previous year. The mindshare of Nutanix Cloud Infrastructure (NCI) is 6.3%, up from 5.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Software Defined Storage (SDS) Market Share Distribution
Product	Market Share (%)
Nutanix Cloud Infrastructure (NCI)	6.3%
Pure Storage FlashBlade	4.1%
IBM Spectrum Scale	3.9%
Other	85.7%

Software Defined Storage (SDS)

Featured Reviews

Parul-Patel

Senior Network Engineer at Holy Redeemer Health System, Inc.

High performance and throughput enhance IT backup management

The multi-dimensional scale-out design feature of Pure Storage FlashBlade is not in use in our environment. Regarding data reduction technologies, we don't get much deduplication because the data is already deduplicated from our FlashArray before we get to backup, so there is no benefit of deduplication. Regarding the integration with cloud-native ecosystem tools, we are not on cloud; we are strictly an on-premises solution. Pure Storage FlashBlade is not used by any end-user; it's used only for IT backup, with only about four people in our group managing it. I cannot recommend Pure Storage FlashBlade to other users depending upon their financial situation because it's an expensive solution, and the cost is very high, including licensing and renewal every year. I rate Pure Storage FlashBlade an eight out of ten.

Has optimized performance using cluster deployment and distributed file access but needs better visibility into network dependencies

Sachin Prakash

Assistant Consultant at Tata Consultancy

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.

Offers a unified platform, reduces downtime, and simple updates

MahendraPanchotiya

Infrastructure Manager at ER Tech Pros

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.

More Pure Storage FlashBlade pros

Quotes from Members

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

Pros

"The tool's most valuable features are data warehousing, speedy recovery, and analytics. Its latest release is cost-effective."

"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."

"It helps simplify our storage, because the user interface is very simple and the installation is easy."

"Speed and ease of use are the two most valuable features."

"We can capacity plan at a greater level than we used to."

"Approximately 40% to 50% of my time is saved using Pure Storage FlashBlade compared to different products."

"I would rate this solution an eight plus. It has has good flexibility and stability, it's easy to manage and the response time is good."

"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."

"Allows us to share files across multiple environments."

"It is incredibly scalable and stable."

"I would rate my overall experience with IBM Spectrum Scale as nine out of ten."

"I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system."

"I rate this product ten out of ten."

"GPFS monitoring is the best feature."

"We are using it for monitoring all of our storage."

"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."

More IBM Spectrum Scale pros

"It has enterprise data services with consolidated storage data protection and disaster recovery. One valuable aspect is its efficiency as a robust platform. There is an ease of managing all processes. The data recovery process is remarkably fast. It’s a stable solution. The product is scalable. It provides high-speed live migration capability."

"Nutanix Cloud Infrastructure's most valuable features are all the cloud facilities or benefits it provides for my data center."

"This is a very flexible solution that you are able to run however you want."

"It's much easier and faster even when you want to create a server from a template or clone."

"Nutanix Cloud Infrastructure has a simple, user-friendly GUI, and I also like the remote recovery capabilities. It provides a single platform for managing databases."

"The configuration is easy, and it's flexible."

"The technology of Nutanix Acropolis AOS is the most valuable feature. You don't need multiple screens to manage."

"The stability is good. This is the number-one product in that regard."

More Nutanix Cloud Infrastructure (NCI) pros

Cons

"I would like to see more deduplication."

"The Pure Storage Orchestrator is our biggest pain point at the moment. If we can have more say in future developments of feature sets that we will need to support for our use case, that would be pretty beneficial to us."

"The speed could be improved."

"The technical support needs to improve. When we open a case, it is auto assigned to a support tech person. Nine out of ten times, we get an email right back saying that person is off until tomorrow. I cannot handle that. They just did this over the weekend to us, too. I had to call our rep and have them do something about it."

"We haven't been able to use much of the cloud area of Pure Storage. We have a storage server and it would be better if it could integrate with other cloud features of this solution."

"It usually comes down to just what you hit and the value you're getting when you spend the money and license the products. I would always go, "If you want to make things better, lower your price and make your licensing simpler." There's always an opportunity around that."

"It's on the expensive side, as expected for a niche product."

"I would also like to see better support for CIFS workloads."

More Pure Storage FlashBlade cons

"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 solution's pricing could be better."

"There can be improvements in fault tolerance and making erasure coding faster."

"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."

"Integration with other vendors is not available."

"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 main issue that we have now is with the encryption. They want to use more metrics in encryption, which is not working very well."

"Initially, stability was a concern as we encountered numerous issues and errors."

More IBM Spectrum Scale cons

"To have internal stability, we needed to network the solution ourselves. Performance depends on the application. Performance could be the lack of IOPS, memory and CPU and configuration issues."

"There is room to enhance the micro-segmentation."

"Native File-Services are under heavy development and Container Services just came out."

"The software-defined networking should be improved. It is quite substandard as compared to the VMware variant. The software-defined networking is quite limited, and we usually use other products to do that. We're aware that Nutanix is working on that and will be coming out with better solutions, and we can't wait because to do a fully software-defined architecture, the abstraction layer needs not only software-defined storage, which you have, but also the software-defined networking piece."

"Make it easier to manage."

"I would like to see them utilize the spare storage that they use as a redundant space. I feel that now a lot of resources are wasted just for standby purposes because we are using data protection. Instead of utilizing those resources only when something happens, they can have an alternative so that we can utilize these resources all the time."

"The name of the solutions offered by Nutanix does not indicate what the tool does."

"The patch updates of Nutanix Acropolis could be improved. I'm work on the corporate side, but I get feedback from our IT team that patch updates and other updates are taking a significantly longer time. This definitely needs to be resolved. We are in discussion with Nutanix regarding certain configuration issues we are having, so maybe something can be changed to ease these patch updates."

More Nutanix Cloud Infrastructure (NCI) cons

Pricing and Cost Advice

"Pure Storage FlashBlade is a hardware appliance, and it's very expensive if you compare its price with other solutions. You can get the same features and benefits from its competitor, VAST Data, but for half the price of Pure Storage FlashBlade."

"The price could be cheaper."

"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."

"The price is a little high."

"The product is very expensive."

"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."

"It is within reason for what you get. From what we have found comparing it to other vendors, it is in the same range as others. Given the choice, we would definitely redeploy it based on the cost."

"The pricing for FlashBlade is between cheap and moderate."

More Pure Storage FlashBlade pricing and cost advice

"The licensing is based on the number of terabytes."

"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 setup cost, pricing, and licensing are very competitive and TCO is very low compared to three-tier solutions."

"The cost of Nutanix Acropolis AOS is reasonable."

"The pricing is quite good in comparison with HPE SimpliVity, Nutanix Scale, and even traditional architecture."

"Reconsidering the licensing packages could reduce the price, especially for companies that may not need all the bells and whistles. Many of the features are based on open-source software, so there's potential to offer more flexible pricing options. Additionally, with the right expertise, companies could potentially create similar environments themselves, reducing the need for extensive support and licensing costs. I rate its pricing a six out of ten. The tool costs around 300,000 dollars per year."

"The price of Nutanix is lower than other products."

"Extra features should not be so expensive. We would love to be able to use or even just try some of the extra features without having to buy them. Buying those features is just as expensive as buying vSphere licenses, so the cost savings is nullified."

"Pricing for Nutanix Acropolis AOS is higher. This is one of the reasons why we were looking into other options."

"Nutanix price is high because it bundles all the components into single deals rather than allowing you to select the features that you want/will use."

More Nutanix Cloud Infrastructure (NCI) pricing and cost advice

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Comparison Review

it_user244362

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…

What do you like most about Pure Storage FlashBlade?

Top Industries

By visitors reading reviews

Computer Software Company

12%

Financial Services Firm

11%

Manufacturing Company

10%

Government

Financial Services Firm

18%

Manufacturing Company

11%

Computer Software Company

10%

Government

Computer Software Company

17%

Financial Services Firm

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	20

By reviewers
Company Size	Count
Small Business	6
Large Enterprise	8

By reviewers
Company Size	Count
Small Business	91
Midsize Enterprise	77
Large Enterprise	82

Questions from the Community

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 is very expensive with complex pricing models usually based on the amount of storage used or the n...

What needs improvement with IBM Spectrum Scale?

There is room for improvement in the web interface. There could be more information available, such as charts and gra...

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...

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Comparisons

Compared 19% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 11% of the time

MinIO vs Pure Storage FlashBlade

Compared 10% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 9% of the time

VAST Data vs Pure Storage FlashBlade

Compared 7% of the time

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Red Hat Ceph Storage vs IBM Spectrum Scale

Compared 19% of the time

Portworx Enterprise vs IBM Spectrum Scale

Compared 11% of the time

DDN IME vs IBM Spectrum Scale

Compared 11% of the time

Red Hat Gluster Storage vs IBM Spectrum Scale

Compared 9% of the time

IBM Cloud Object Storage vs IBM Spectrum Scale

Compared 5% of the time

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VxRail vs Nutanix Cloud Infrastructure (NCI)

Compared 7% of the time

Sangfor HCI - Hyper Converged Infrastructure vs Nutanix Cloud Infrastructure (NCI)

Compared 7% of the time

Azure Stack HCI vs Nutanix Cloud Infrastructure (NCI)

Compared 7% of the time

HPE SimpliVity vs Nutanix Cloud Infrastructure (NCI)

Compared 6% of the time

VMware vSAN vs Nutanix Cloud Infrastructure (NCI)

Compared 6% of the time

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Product Reports

Pure Storage FlashBlade

Download Pure Storage FlashBlade product report

Download IBM Spectrum Scale product report

IBM Spectrum Scale

October 2025

Nutanix Cloud Infrastructure (NCI)

Download Nutanix Cloud Infrastructure (NCI) product report

Nutanix Cloud Infrastructure (NCI) report

Also Known As

No data available

Nutanix Acropolis AOS, Nutanix AOS, Nutanix Acropolis

Overview

FlashBlade is the industry’s most advanced scale-out storage for unstructured data, powered by a modern, massively parallel architecture to consolidate complex data silos (like backup appliances and data lakes) and accelerate tomorrow’s discoveries and insights.

Pure Storage

IBM Spectrum Scale is a cluster file system that provides concurrent access to a single file system or set of file systems from multiple nodes. The nodes can be SAN attached, network attached, a mixture of SAN attached and network attached, or in a shared nothing cluster configuration. This enables access to this common set of data to support a scale-out solution or to provide a high availability platform. IBM Spectrum Scale has many features beyond common data access including data replication, policy based storage management, and multi-site operations. You can create a cluster of AIX nodes, Linux nodes, Windows server nodes, or a mix of all three. IBM Spectrum Scale can run on virtualized instances providing common data access in environments, leverage logical partitioning, or other hypervisors. Multiple IBM Spectrum Scale clusters can share data within a location or across wide area network (WAN) connections.

IBM

Nutanix Cloud Infrastructure (NCI) is a top-ranking HCI software, cloud management tool, and Software Defined Storage (SDS) tool that is marketed as the foundation for users' hybrid clouds. It offers a powerful and secure hyperconverged infrastructure to deliver all data and applications at any scale and on any cloud. The solution offers a complete software stack that allows users to unify their hybrid cloud infrastructure.

NCI’s services include computer, storage and network, hypervisors and containers, and deployment in public or in private clouds. The product also comes with built-in resilience, disaster recovery capabilities, self-healing, and high-security capacities. It provides further deployment flexibility through several software and hardware options and platforms. NCI includes a full set of enterprise capabilities. It can also be deployed on a wide range of servers from popular manufacturers.

The capabilities of the product are categorized into three main groups:

AOS storage
Flexible and open compute
Automated and secure networking

Outside of these categories, NCI also offers other capabilities:

Integrated disaster recovery
Full-stack lifecycle management
VMware with Nutanix
Intelligent operations

Nutanix Cloud Infrastructure (NCI) Features

Nutanix Cloud Infrastructure (NCI) offers its customers various features and tools in each of the previously mentioned categories. The available features for users currently include:

High-performance: This set of features utilizes hardware advances such as NVMe and RDMA to accelerate users' most demanding applications with consistent performance. The tools in this feature category work alongside data locality to ensure successful results.
Foolproof resiliency: These Nutanix Cloud Infrastructure features protect data and keep it available by facilitating advanced distributed consistency algorithms. Users can utilize these features to protect their data from issues like bit rot, hardware failures, and even entire site failure.
Flexibility: This set of features allows storage to be sized for the needs of each organization and expanded promptly and easily so that the organization and its data can grow. The features offer flexibility to users in terms of applying storage policies logically on a pre-workload basis, instead of being tied to hardware.
Hypervisor choice: Users can choose from the leading hypervisors - Microsoft Hyper-V or VMware ESXi. They can also leverage the built-in hypervisor AHV that Nutanix Cloud Infrastructure (NCI) provides.
Integrated virtualization: These features offer simplified automation and AHV streamlined operations. The services in this category are optimized for high performance and reliability.
Kubernetes: Nutanix Cloud Infrastructure (NCI) offers features to build and deploy cloud-native applications on intelligent distributed infrastructure. Apps can be integrated with cloud-compatible storage and both building and deployment can be achieved within the same platform.
Microsegmentation: Nutanix Cloud Infrastructure (NCI) offers features to prevent malware spread and reduce attack surfaces by leveraging machine learning (ML).
Virtual networking: This set of features allows users to easily implement multi-tenancy in their environment or stretch networks across clouds.
Centralized network management: Nutanix Cloud Infrastructure (NCI) provides organizations with a way to manage networking configurations centrally. Users can utilize it across their human-computer interaction (HCI) environment with simple virtual switch management.

Nutanix Cloud Infrastructure (NCI) Benefits

The product offers various benefits to users who utilize its capacities. Some of these include:

NCI reduces technology sprawl and frees up technical resources to allow organizations to focus on other activities, potentially reducing costs for the business.
The product allows customers to deploy, scale, and bridge to the public cloud to be able to react in evolving business environments.
Nutanix Cloud Infrastructure improves data availability while simultaneously protecting it against several kinds of failures and attacks.
The solution offers high-performance, resilient distributed storage for all workloads.
Working alongside Nutanix Cloud Platform, NCI offers simple management of data from one console.
Nutanix Cloud Infrastructure works by the zero trust philosophy, protecting users' apps and data through specially designed security protocols.

Reviews from Real Users

According to Gerhard J., an IT manager at Q4 Fuel, Nutanix Cloud Infrastructure (NCI) provides serious reliability and stability across the entire system makes for ROI.

A solutions architect at a computer software company describes NCI as a stable, straightforward to set up, and scalable solution.

Nutanix

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.

IBM Spectrum Scale vs. Nutanix Cloud Infrastructure (NCI)