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

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

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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 July 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 7.6%, up from 7.4% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 5.3%, up from 2.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

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."

"The product is scalable and easy to expand."

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

"The initial setup is pretty easy and simple."

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

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

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

"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."

More Pure Storage FlashBlade pros

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

"The initial setup is straightforward."

"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."

"Its technical support is excellent."

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

More Microsoft Storage Spaces Direct pros

"My opinion is that this solution has very good stability."

"Unified Storage's centralized management features enable us to accomplish whatever we want in terms of operations and migrations."

"Nutanix Unified Storage (NUS) has definitely helped reduce our total cost of ownership, as centralizing that storage allowed us to eliminate all the other players we had on our premises and NASes, bringing everything under one roof."

"The real-time alerts generated by this system enable us to swiftly address and mitigate such threats."

"The pricing, setup costs, and licensing of Nutanix Unified Storage (NUS) are amazing, in my view."

"It is more stable and scalable compared to the Windows file server."

"Whenever we have some necessity in terms of capacity and expansion of infrastructure, it's like a Lego system where they can just place in some more nodes and our needs are met."

"The life cycle managers of the PCMs are very impressive, and I like them. They make our lives easy when managing patches and security updates when they come in. A life cycle manager helps to consolidate different vendors."

More Nutanix Unified Storage (NUS) pros

Cons

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

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

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

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

"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."

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

"Recently, while upgrading the version code, one of the controllers failed. Replacing the controller took between 14 to 20 days."

"The features provided for SMB customers are limited."

More Pure Storage FlashBlade cons

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

"Documentation management could be improved"

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

"The integration is not difficult because there is no GUI, but we need to use a PowerShell command. This makes it difficult to monitor and to see the components' statuses."

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

"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."

"It is scalable, but only beyond two nodes. If I go for two nodes it's not scalable. I need to build a complete cluster from the beginning if I'm going for two nodes."

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

More Microsoft Storage Spaces Direct cons

"A more consistent flow of information would improve the solution, as I've noticed some inconsistencies, mostly stemming from the coordination between the hardware vendor and Nutanix."

"I really want some AI or even basic AI to be included in the Nutanix Unified Storage (NUS) license."

"Perhaps Unified Storage could be improved by including artificial intelligence to make searches more effective. Also, if someone has access who shouldn't, it could automatically update, so I do not need to physically remove permission. The platform could do it automatically. AI could make it more self-service."

"The documentation on the support site needs to be improved."

"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."

"The licensing terms are restrictive, as they go by terabyte cost."

"Improving quota policies would be advantageous, particularly by offering the option to implement blocking instead of just issuing warnings."

"The solution needs to be more open to integration with other vendors. Sometimes, we struggle with the support process. Our skilled engineers must explain our problems to everyone, even though we've already done preliminary investigations. The support team follows standard procedures, which can be painful. We're not a small customer, especially in the life sciences sector, so we'd appreciate more specialized support. I've heard Nutanix Unified Storage has teams dedicated to life sciences and healthcare; we should be part of that."

More Nutanix Unified Storage (NUS) cons

Pricing and Cost Advice

"It's a costly solution, but Pure Storage FlashBlade doesn't require additional licenses. All of the software is combined into one bundle."

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

"The price could be cheaper."

"Our customers have seen a reduction in TCO."

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

"Licensing fees are paid yearly."

"The product is very expensive."

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."

"If we compare the cost of Nutanix Objects Storage to other solutions such as VMware licenses, our current choice is Nutanix Objects Storage. This solution is more cost-effective. However, adding VMware to Nutanix would not be a cost-efficient decision, which is why we do not use it anymore."

"It is competitive with other vendors, but you get more for your dollars. It is fairly priced, but not cheap."

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

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

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

"The solution’s pricing could be cheaper."

"For clients running Nutanix, the licensing cost for Files is a small add-on cost."

"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."

More Nutanix Unified Storage (NUS) pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

14%

Educational Organization

12%

Financial Services Firm

11%

Manufacturing Company

Computer Software Company

15%

Manufacturing Company

Government

Financial Services Firm

Computer Software Company

31%

Educational Organization

12%

Manufacturing Company

Financial Services Firm

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

What do you like most about Pure Storage FlashBlade?

The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power out...

What is your experience regarding pricing and costs for Pure Storage FlashBlade?

The pricing for FlashBlade is between cheap and moderate. FlashBlade is worth the money due to the experience and per...

What needs improvement with Pure Storage FlashBlade?

Its configuration should be easier. There should be easier language for the configuration.

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...

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

Pricing is an advantage of Storage Spaces Direct. Licenses can be on a monthly or yearly basis, depending on the addi...

What needs improvement with Microsoft Storage Spaces Direct?

Microsoft closed the shared cluster support, which is important for the solution. At the moment, the new version does...

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.

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

Nutanix solutions are often perceived as premium-priced, but they deliver substantial ROI in terms of performance, re...

What needs improvement with Nutanix Unified Storage?

In terms of improvement areas for Nutanix Unified Storage (NUS), pricing is a significant issue, and another aspect i...

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Comparisons

Compared 20% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 11% of the time

MinIO vs Pure Storage FlashBlade

Compared 11% of the time

VAST Data vs Pure Storage FlashBlade

Compared 10% of the time

Scality RING vs Pure Storage FlashBlade

Compared 2% of the time

More Pure Storage FlashBlade Competitors

VMware vSAN vs Microsoft Storage Spaces Direct

Compared 62% of the time

Red Hat Ceph Storage vs Microsoft Storage Spaces Direct

Compared 15% of the time

StarWind Virtual SAN vs Microsoft Storage Spaces Direct

Compared 7% 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 2% 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 15% of the time

MinIO vs Nutanix Unified Storage (NUS)

Compared 10% of the time

VAST Data vs Nutanix Unified Storage (NUS)

Compared 5% of the time

Amazon S3 vs Nutanix Unified Storage (NUS)

Compared 5% of the time

More Nutanix Unified Storage (NUS) Competitors

Product Reports

Pure Storage FlashBlade

Download Pure Storage FlashBlade product report

Microsoft Storage Spaces Direct

Download Microsoft Storage Spaces Direct product report

Nutanix Unified Storage (NUS)

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

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