Microsoft Storage Spaces Direct vs Nutanix Unified Storage (NUS) comparison

Microsoft and Nutanix are both solutions in the Software Defined Storage (SDS) category. Microsoft is ranked #9 with an average rating of 7.8, while Nutanix is ranked #3 with an average rating of 8.7. Microsoft holds a 7.3% mindshare in SDS, compared to Nutanix’s 5.0% mindshare. Additionally, 80% of Microsoft users are willing to recommend the solution, compared to 98% of Nutanix users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 5, 2024

Microsoft Storage Spaces Direct and Nutanix Unified Storage compete in enterprise storage solutions. Nutanix Unified Storage seems to have the upper hand due to its advanced features offering compelling value for price.

Features: Microsoft Storage Spaces Direct has robust scalability, advanced resilience with automatic failover, and dynamic provisioning. Nutanix Unified Storage offers a unified platform with integrated data services, customizable workflows, and broader edge-to-cloud deployment capabilities.

Room for Improvement: Microsoft Storage Spaces Direct could improve in customer service consistency, user interface intuitiveness, and expanding comprehensive backup and recovery features. Nutanix Unified Storage has room for improvement in initial deployment complexity, pricing structure flexibility, and enhancement of native monitoring tools.

Ease of Deployment and Customer Service: Microsoft Storage Spaces Direct integrates with Windows Server, making deployment straightforward with extensive documentation, though customer service can vary. Nutanix Unified Storage offers a hyper-converged infrastructure for seamless deployment, praised for responsive customer service and streamlined support.

Pricing and ROI: Microsoft Storage Spaces Direct offers competitive pricing, especially for organizations within the Microsoft ecosystem, providing a favorable ROI through reduced infrastructure costs. Nutanix Unified Storage requires a higher initial investment, justified by its comprehensive feature set and long-term operational efficiency, leading to significant ROI through enhanced data management capabilities.

To learn more, read our detailed Microsoft Storage Spaces Direct vs. Nutanix Unified Storage (NUS) Report (Updated: September 2025).

Buyer's Guide

Microsoft Storage Spaces Direct vs. Nutanix Unified Storage (NUS)

September 2025

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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 Microsoft Storage Spaces Direct is 7.3%, down from 7.5% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 5.0%, up from 3.3% 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 Unified Storage (NUS)	5.0%
Pure Storage FlashBlade	4.2%
Microsoft Storage Spaces Direct	7.3%
Other	83.5%

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.

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Stanislaw Mielicki

Solution architect at Netland

Achieve cost-effectiveness with superior performance while needing to address cluster support

I am working with Microsoft Storage Spaces Direct for applications, SQL, and VRS. I am an integrator for this solution The price performance is the best advantage of Microsoft Storage Spaces Direct. They introduced the All-Flash array using SSD or NVMe drives without cache drives. It is…

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Amarnath Charugundla

System Engineer at Tata Consultancy

Unified management and cost-effectiveness lead to positive experiences and future savings

Improvement is necessary wherein the memory or storage should not breach 90%, because if breached, it becomes unmanageable. We have to set alerts or CPU triggering for 95% for the first warning. Other activities on nodes or file systems should be properly maintained. We must monitor the dashboard for P1, P2 alerts in the Nutanix Unified Storage (NUS) file share system including SMB, NFS, objects, and blocks. Attention should be maintained for any alerts such as CPU, memory, and RAM alerts, as exceeding these creates issues within teams. If triggered to 95% and forgotten, it crosses the SLA breach, causing disturbances to application, web, and platform teams. Continuous monitoring on the Nutanix dashboard is essential. Even a highly experienced person in Nutanix Unified Storage (NUS) cannot provide a 10 rating out of 10 because it is a vast system. I would rate it eight from my perspective.

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Quotes from Members

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

Pros

"FlashBlade offers low latency, high throughput, and seamless scalability."

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

"The initial setup was straightforward. If you know how to plug in power and network you're pretty much qualified. They were on site to configure the network, the box to fit into our network architecture. Other than that, we self-managed from there."

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

"The most valuable features include the ease of implementation, ease of use and the speed that you can do backup and recovery on."

"I would rate Pure Storage FlashBlade a ten out of ten."

"The solution is able to handle workloads and is easy to use. It allows us to actually manage the boxes in less time."

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

More Pure Storage FlashBlade pros

"The most valuable feature are the caching capabilities using the storage class memory."

"It's mainly about the storage expansion, like in hyper-converged solutions."

"The main positive impact that Microsoft Storage Spaces Direct has had on my company over the years is increasing performance; our checks show it is three times faster than VMware, making us extremely happy and motivated to keep using it."

"The price performance is the best advantage of Microsoft Storage Spaces Direct."

"The most valuable feature is that there is no single point of failure."

"The initial setup is straightforward."

"The flash ability, in terms of tiering and caching, is amazing"

More Microsoft Storage Spaces Direct pros

"The most valuable feature of Nutanix Unified Storage is redundancy."

"The most valuable feature is the easy interface."

"I would rate Nutanix Unified Storage (NUS) a ten out of ten."

"It removes a layer of aggregation to present storage to end users, so we do not have Windows file servers. This benefits our company by reducing one of our attack planes from a cybersecurity perspective, so we do not have to worry about the OS."

"We have seen reduced overheads and increased efficiency with Nutanix Unified Storage (NUS)."

"The most valuable feature of Nutanix Unified Storage is the ease of setting up file shares. As a global company with data centers around the world, our files clusters are accessible globally. Managing and setting up shares for our over 12,000 employees is straightforward."

"The product's benefits stem from the ease of use and management it offers to its users."

"The solution is very easy to manage."

More Nutanix Unified Storage (NUS) pros

Cons

"The features provided for SMB customers are limited."

"It would be nice if you could store file-based in the same box with the same technology."

"Its configuration should be easier."

"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."

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

"There is some room for new features related to authentication and integration with Kubernetes, and other solution using S3 Bucket."

"I would like to see the licensing fees improved as well as the price per terabytes."

"I want efficiency. FlashBlade doesn't have efficiency now."

More Pure Storage FlashBlade cons

"Microsoft closed the shared cluster support, which is important for the solution."

"I think the online documentation needs a lot of work and so do the sizing tools."

"The management tool within this solution could be improved. We would also like to be able to access services like Azure when using this solution."

"Documentation management could be improved"

"Microsoft closed the shared cluster support, which is important for the solution."

"More optimization could be done in terms of mirroring."

"On a scale of one to ten, I would rate the customer service and technical support of Microsoft Storage Spaces Direct a three, as there were issues that the Microsoft team could not pinpoint, leading to delays in finding solutions."

"There is a lot of room for improvement. I would like to have more tools to monitor the function and problems."

More Microsoft Storage Spaces Direct cons

"The integration feature with Nutanix Unified Storage (NUS) could be improved, maybe into a more stabilized version."

"The only thing I would say is missing for us it is FTP protocol compatibility."

"Nutanix needs to improve their cybersecurity options at the storage level."

"For P1 and P2 alerts in the Nutanix Unified Storage (NUS) file share system, including SMB, NFS, objects, or blocks, we must maintain vigilant monitoring. This is crucial because system downtime can disturb the entire ecosystem and impact all applications."

"We couldn't access Nutanix Unified Storage (NUS) from Prism Central due to bugs. The bugs that Nutanix fixed in newer versions prevented us from accessing Nutanix Unified Storage (NUS) from Prism Central."

"It's still pretty expensive."

"I believe that one of the most complicated parts of Nutanix Unified Storage is the configuration of the DNS issue in Active Directory. Sometimes it is a bit complicated to troubleshoot or detect an error when integrating it with Active Directory."

More Nutanix Unified Storage (NUS) cons

Pricing and Cost Advice

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

"I have seen ROI. It has allowed me to increase the density of my VMs without having to purchase anything additional."

"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."

"The price is a little high."

"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 of this solution could be made more affordable."

"Our licensing is renewed annually."

More Pure Storage FlashBlade pricing and cost advice

"With the data center licensing and everything that is connected to that, this solution is relatively costly."

"Cost-wise the product is one of the more affordable within the category of products."

"The solution is expensive."

"The product is pricey."

"While the price may not be the most affordable, I believe it offers good value for the benefits it provides."

"The licensing currently works based on a software license. If we have files, volumes, and other licenses combined, that would be more valuable. I don't want to go for a separate license for files and a separate license for volumes. We have unified storage, so the licensing should also be unified. That would be helpful."

"Compared to other solutions, NUS is cost-effective and efficient. It also has good performance."

"Licensing-wise, I have no complaints. Their license is pretty simple and easy. It gives us everything we need, so I have no complaints about licensing."

"The licensing model the tool has is cheaper than an HCI storage solution."

"Nutanix offers different pricing options, including Ultimate and Ultimate Pro."

"My company is in Brazil, and making the payments in dollars is tough for our organization."

More Nutanix Unified Storage (NUS) pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Financial Services Firm

12%

Manufacturing Company

Government

Computer Software Company

16%

Manufacturing Company

Financial Services Firm

Government

Computer Software Company

30%

Manufacturing Company

Educational Organization

Financial Services Firm

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	7
Midsize Enterprise	1
Large Enterprise	3

By reviewers
Company Size	Count
Small Business	26
Midsize Enterprise	30
Large Enterprise	63

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...

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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...

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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...

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How does VMware vSAN compare with Microsoft Storage Spaces Direct?

We found VMware’s vSAN was easy to set up, configure, and manage compared to other solutions we considered. It is bes...

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What is your experience regarding pricing and costs for Microsoft Storage Spaces Direct?

Overall, I find the cost of Microsoft Storage Spaces Direct to be affordable for the on-prem Windows pure solution, b...

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What needs improvement with Microsoft Storage Spaces Direct?

Microsoft should improve the management aspect of Microsoft Storage Spaces Direct, as we have raised multiple recomme...

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What do you like most about Nutanix Unified Storage?

Nutanix has excellent product documentation available on their portals, written in simple, easy-to-understand language.

See all answers

What is your experience regarding pricing and costs for Nutanix Unified Storage?

It is very cost-effective compared to the traditional environment. With new hardware, it's a long-term investment but...

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What needs improvement with Nutanix Unified Storage?

The cybersecurity features are used for protecting unstructured data against threats such as ransomware.

See all answers

Comparisons

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Compared 20% of the time

MinIO vs Pure Storage FlashBlade

Compared 11% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 10% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 10% of the time

Pure FlashArray X NVMe vs Pure Storage FlashBlade

Compared 2% of the time

More Pure Storage FlashBlade Competitors

VMware vSAN vs Microsoft Storage Spaces Direct

Compared 58% of the time

Red Hat Ceph Storage vs Microsoft Storage Spaces Direct

Compared 16% of the time

StarWind Virtual SAN vs Microsoft Storage Spaces Direct

Compared 6% of the time

DataCore SANsymphony vs Microsoft Storage Spaces Direct

Compared 4% of the time

Nutanix Cloud Infrastructure (NCI) vs Microsoft Storage Spaces Direct

Compared 3% of the time

More Microsoft Storage Spaces Direct Competitors

Red Hat Ceph Storage vs Nutanix Unified Storage (NUS)

Compared 14% of the time

Dell PowerScale (Isilon) vs Nutanix Unified Storage (NUS)

Compared 13% of the time

MinIO vs Nutanix Unified Storage (NUS)

Compared 9% of the time

Amazon S3 vs Nutanix Unified Storage (NUS)

Compared 6% of the time

VAST Data vs Nutanix Unified Storage (NUS)

Compared 5% of the time

More Nutanix Unified Storage (NUS) Competitors

Product Reports

Buyer's Guide

Pure Storage FlashBlade

August 2025

Download Pure Storage FlashBlade product report

Buyer's Guide

Microsoft Storage Spaces Direct

August 2025

Download Microsoft Storage Spaces Direct product report

Buyer's Guide

Nutanix Unified Storage (NUS)

August 2025

Download Nutanix Unified Storage (NUS) product report

Also Known As

No data available

MS Storage Spaces Direct

Nutanix Files Storage, Nutanix Volumes Block Storage, Nutanix Objects Storage

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

Storage Spaces Direct uses industry-standard servers with local-attached drives to create highly available, highly scalable software-defined storage at a fraction of the cost of traditional SAN or NAS arrays. Its converged or hyper-converged architecture radically simplifies procurement and deployment, while features like caching, storage tiers, and erasure coding, together with the latest hardware innovation like RDMA networking and NVMe drives, deliver unrivaled efficiency and performance.

Microsoft

Nutanix Unified Storage provides high availability and seamless cloud platform integration, ensuring robust redundancy, scalability, and streamlined management. It supports hybrid cloud connectivity, enhancing storage security and performance.

Nutanix Unified Storage is designed for effective data protection across block, file, and object storage, offering features like ransomware detection and a centralized management interface through Prism Central. Users gain improved SLAs and IT cost savings through its efficient performance. Despite its user-friendly interface, there is a demand for enhanced security measures such as Multi-Factor Authentication and DLP. While its resilience is notable, users seek improvements in protocol compatibility, storage capabilities, pricing, and support processes.

What are the most important features of Nutanix Unified Storage?

User-Friendly Interface: Simplifies storage management and monitoring.
High Availability: Ensures continuous operation and reliability.
Seamless Cloud Integration: Compatible with platforms like Azure and AWS.
Robust Redundancy: Protects data against hardware failures.
Scalable Architecture: Easily adapts to growing data storage needs.
Ransomware Detection: Enhances data protection measures.

What benefits and ROI might users find in reviews?

Improved SLAs: Increased service reliability and performance.
IT Cost Savings: Reduces expenses through efficient resource use.
Enhanced Security: Stronger data protection and reduced risk.
Centralized Management: Easier control and monitoring from one dashboard.

Industries implement Nutanix Unified Storage for tasks such as file storage, database performance improvement, and storage solution consolidation. Companies deploying virtual machines, securing against ransomware, connecting hybrid clouds, and backing up data find it useful. It supports workloads like Citrix VDI, Kubernetes, and research data, assisting many organizations migrating from legacy storage for better cost efficiency and reduced data center footprints.

Nutanix

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL

Acuutech, Quest Technology Management, Bradley, Mead & Hunt

JetBlue, International Speedway Corporation, Volkswagen SAIC, Brighton and Hove City Council, Foresters Financial, Janus International Group, Cloud Comrade, Serco

Buyer's Guide

Microsoft Storage Spaces Direct vs. Nutanix Unified Storage (NUS)

September 2025

Free Report: Microsoft Storage Spaces Direct vs. Nutanix Unified Storage (NUS)

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