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.

Read full review

Quotes from Members

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

Pros

"The most valuable features of this solution are the rewrite speed and the nonstop services."

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

"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."

"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."

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

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

"The main feature I have found to be product replication."

"It is very easy to use, and it is very fast."

More Pure Storage FlashBlade pros

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

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

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

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

"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."

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

"The performance, reliability, and affordability has been most valuable."

"The initial setup is straightforward."

More Microsoft Storage Spaces Direct pros

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

"I like its interface. It is very interactive and simple to use."

"The most valuable features of Nutanix Unified Storage are the unified dashboard and the ease of administration."

"The solution's most valuable feature is the Prism Central centralized management console."

"The best Nutanix Unified Storage features are its recovery and data speeds. It has resolved the issue of accessing information quickly."

"The most valuable feature is that it is highly available, solving the pain-point of delaying updates to Windows-based file servers during production hours. And then the second one would be ransomware protection and analytics. It gives you great visibility and protection on your file shares that are otherwise the most common sources of vulnerabilities."

"The scalability, data redundancy, and security are valuable."

"The solution is easy to use, share, and manage."

More Nutanix Unified Storage (NUS) pros

Cons

"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."

"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."

"File storage needs a lot of improvement. Mainframe connectivity also needs improvement because it requires additional components to be integrated with Pure Storage FlashBlade. If you want to keep your backup data, then this becomes an even more expensive solution because Pure Storage FlashBlade will not be able to meet your backup needs."

"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 would like to have Snapshots and Snapmail in the next release. People who came from a NetApp background, especially expect these features."

"In terms of scalability, it doesn't expand out quite as robustly as some of the others, but it covers 90% of the market in what it does."

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

"The solution is expensive."

More Pure Storage FlashBlade cons

"Documentation management could be improved"

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

"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."

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

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

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

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

"It is difficult to get a hardware compatibility certification for the solution."

More Microsoft Storage Spaces Direct cons

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

"Its features can be further enhanced from the DR and high availability points of view to match other vendors, such as NetApp. It has snapshot, replication, high availability, and other data and storage-level replication, but there are some limitations."

"Security is an area for improvement. When there are vulnerabilities, there needs to be a faster approval process. The solution needs to automatically target the vulnerabilities and not waste too much time."

"The pricing could be improved."

"I would them to have more communication with other platforms, and it appears they are already doing that."

"The solution is very expensive."

"The pricing can be quite high."

"While the stability of Nutanix Unified Storage (NUS) is good, the need for manual intervention can be a drawback."

More Nutanix Unified Storage (NUS) cons

Pricing and Cost Advice

"Our licensing is renewed annually."

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

"I understand that it is competitively priced compared to other brands."

"In my opinion, we have paid the right price for the product. I don't think that it is too much or too little."

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

"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."

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

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."

"The solution is expensive."

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

"It's definitely a lot cheaper than buying a new EMC array. We bought a five-year commitment on all the hardware and software. I don't know what the cost was back then, but I do remember it was cheaper."

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

"It's not the cheapest solution. It's in line with other solutions, but it offers features that the competitors don't have at any price point, especially with regard to analytics and ransomware prevention. No one else has any sort of object-based storage available. Nutanix Unified Storage is a lot more feature-rich. This is a situation where you get what you pay for."

"Nutanix's pricing is definitely much better when compared to other storage providers. That was one of the main reasons we switched to this platform."

"It is very good. It is much more competitive than a dedicated storage platform."

"I'm happy with the cost and licensing because I don't have big volumes."

"The product has an annual licensing fee."

"I find Nutanix Files Storage competitively priced, even its feature set. Its price is seven out of ten."

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

10%

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...

See all answers

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

NetApp AFF 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 15% 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

IBM Storage Fusion vs Nutanix Unified Storage (NUS)

Compared 4% 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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