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 September 2025, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 4.2%, down from 4.5% compared to the previous year. The mindshare of IBM Spectrum Scale is 4.2%, down from 4.9% compared to the previous year. The mindshare of Nutanix Cloud Infrastructure (NCI) is 6.1%, up from 6.1% 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)	6.1%
Pure Storage FlashBlade	4.2%
IBM Spectrum Scale	4.2%
Other	85.5%

Software Defined Storage (SDS)

Featured Reviews

Eric Black

Solutions Architect at Recovery Point Systems

The ability to leverage multi-tenancy along with immutability is a huge benefit for us

The only thing I feel FlashBlade is missing is the SOS API. If it had SOS API, that would put it well over the top. Veeam Backup specifically has started to streamline their API, and they are doing that with SOS API. They have optimized it. Any of the S3 devices out there that support this SOS API can have far more API calls at once. On our side, that translates to better restoration. With SOS API, it can leverage far more restorations at a single given time or read from the device in simple terms. That results in maximizing the output and throughput from the device itself.

Deliver improved performance in data processing and foster extensive AI initiatives

Bernd Stroehle.

Enterprise Architect at kosakya

I find IBM Spectrum Scale to be an excellent product known for its fast parallel file system. It achieved the best results when integrated with IBM hardware. Even though it is complex, it provided significant performance advantages in large-scale data management. Its fault tolerance mechanisms and integration capabilities make it popular for extensive AI initiatives and data processing tasks for organizations like Daimler Benz and Bosch.

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 performance of FlashBlade is excellent. It does not necessarily leverage the SOS API that some of the newer products leverage, but I found its speed pretty much on par and comparable. It is fast, and it does what it is supposed to do."

"It has also helped to simplify storage for us in the way that it's easy to manage. Their automatic monitoring really helps when things break or are about to break. They see a problem coming and alert us even before our own system does."

"The most valuable features of FlashBlade include its replication capabilities, reports, and easy allocation. Everything is user-friendly."

"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."

"Pure Storage FlashBlade is user-friendly. It's replication feature is great because it has active replication and active DR. That's the beauty of the product. It's a perfect solution for block storage."

"The most valuable features are the Metro clustering, and disaster recovery."

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

"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."

"We can have multiple systems within the same file system."

"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."

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

"The profile share is a valuable feature."

"I rate this product ten out of ten."

"It is incredibly scalable and stable."

"The high performance of the solution is its most valuable aspect. If you compare it to other storage solutions, it's much better."

"It has been pretty reliable throughout the years. As far as capacity is concerned, it can handle most heavy loads."

More IBM Spectrum Scale pros

"Its most valuable feature is simplicity. It is so easy to use. Upgrades are easy. It is easy in terms of disaster recovery, failover, database provisioning, and reporting. Everything about it is just simple."

"We like that the size of the box is 1U or 2U only, and all the servers are fit into that box. The ease of operation is there. All the servers and the SAN storage are inside the box."

"It's easy to use and has a very smooth onboarding process."

"One of the main features of the solution is that it works on many hypervisors. It is a big advantage. Additionally, the solution is compatible with VMware and Hyper-V, and the management interface, which is called Prism, is very intuitive and user-friendly."

"Flexibility. We're able to mix performance nodes with storage nodes easily. Unlike other vendors where, if we start a hyperconverged solution with them, we have to stick to a specific model, to a specific series with specific capabilities, with Nutanix it's very easy to mix and match the best solution, especially for a dynamic infrastructure like ours."

"The flexibility of this system is very good. It's also faster than others, and has skilled technical support who showed more initiative than a competitor, e.g. VMware."

"The most valuable features of Nutanix Acropolis AOS are storage and hyper-converged. The solution is easy to use and the administration is very good."

"The administration console, automation, and the first cluster are all valuable features."

More Nutanix Cloud Infrastructure (NCI) pros

Cons

"The feature that we're waiting on is better integration with the cell services."

"The features provided for SMB customers are limited."

"To improve FlashBlade, some analysts suggest enhancing its handling of relational database management systems and SQL queries."

"They need better integration with public clouds along with a better hybrid solution."

"The solution is expensive."

"I would like to see more monitoring capability included in the next release of this solution."

"An area for improvement in Pure Storage FlashBlade is its price. It could be reduced. The technical support for Pure Storage FlashBlade also needs improvement. It used to be good, with more experienced engineers. Nowadays, it isn't, and it takes longer for support to solve problems."

"Pure Storage FlashBlade should improve on more cloud integration."

More Pure Storage FlashBlade cons

"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."

"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."

"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."

"Maybe it needs integration with HA."

"I wish there were some graphical user interface to access the GPFS file system creation and monitoring."

"I believe there is no graphic user interface, so they should include it."

"The initial setup is complex, especially if trying to avoid erasure coding, as it requires more discs. Avoiding erasure coding can significantly increase costs."

More IBM Spectrum Scale cons

"In the licensing, it needs to be clear about features because it is not clear whether Flow is integrated or not."

"The technology has a lot of room for improvement. For example, when they want to segment applications in conjunction with NSX, which VMware uses, Acropolis is not compatible with the competitors. The integration in the security layer is not compatible with NSX for the application segmentation that uses VMware."

"In Thailand, there really isn't a cloud version of Nutanx available to us."

"The file services that they also provide need some more features, like on the Windows file server."

"When we have issues with the solution, they tend to be around networking."

"The self-service side of the product needs to be improved. We should be able to add two-factor authentication and more security layers to it."

"Nutanix now supports four hypervisors but they are not all at feature parity."

"I would like to see Acropolis add the ability to migrate VMs between storage containers. I don't know if they've added this in the latest versions, but I haven't seen it yet. It's mainly about AHV. When we use VMware, we can move between storage containers. In VMware, it's just like regular storage, and we can move it."

More Nutanix Cloud Infrastructure (NCI) cons

Pricing and Cost Advice

"We used a reseller for the purchase."

"The price of this solution could be made more affordable."

"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."

"I feel that the price could always be lowered."

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

"I rate the tool's pricing a seven to eight out of ten."

"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 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 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 license is quite clear to me. It's much clearer than what we had with our previous virtualization environment. The licensing is not complex to understand."

"The cost of Nutanix Acropolis AOS is reasonable."

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

"When compared to the competitors, the price is reasonable."

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

"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."

"The price is good but I think there is still room for improvement on the price."

"Able to grow with smaller, more linear increments of investment"

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

13%

Financial Services Firm

12%

Manufacturing Company

10%

Government

Financial Services Firm

20%

Manufacturing Company

12%

Computer Software Company

10%

Educational Organization

Computer Software Company

18%

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	7

By reviewers
Company Size	Count
Small Business	91
Midsize Enterprise	76
Large Enterprise	81

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.

What is the biggest difference between Nutanix Acropolis and VMware vSphere?

We found the reduced power consumption with Nutanix Acropolis AOS a very attractive feature. We also like the interfa...

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 ...

Which would you choose - Nutanix Acropolis AOS or VMware vSAN?

We found the reduced power consumption with Nutanix Acropolis AOS a very attractive feature. We also like the interfa...

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Comparisons

Compared 19% of the time

MinIO vs Pure Storage FlashBlade

Compared 11% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 11% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 10% of the time

VAST Data vs Pure Storage FlashBlade

Compared 8% of the time

More Pure Storage FlashBlade Competitors

Red Hat Ceph Storage vs IBM Spectrum Scale

Compared 23% of the time

DDN IME vs IBM Spectrum Scale

Compared 12% of the time

Portworx Enterprise 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

Azure Stack HCI 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

HPE SimpliVity vs Nutanix Cloud Infrastructure (NCI)

Compared 6% of the time

VMware vSAN vs Nutanix Cloud Infrastructure (NCI)

Compared 6% of the time

More Nutanix Cloud Infrastructure (NCI) Competitors

Product Reports

Pure Storage FlashBlade

Download Pure Storage FlashBlade product report

IBM Spectrum Scale

Download IBM Spectrum Scale product report

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)