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

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Comparison Buyer's Guide

Executive SummaryUpdated on Dec 5, 2024

Review summaries and opinions

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

ROI

Sentiment score
6.6
Pure Storage FlashBlade reduces total cost of ownership by enhancing efficiency, enabling fast restorations, and supporting diverse use cases.
Sentiment score
5.3
Microsoft Storage Spaces Direct offers cost savings by enabling self-management, reducing fees, and providing long-term financial benefits.
Sentiment score
6.9
Nutanix Unified Storage boosts ROI by reducing costs, enhancing uptime, scalability, and efficiency, while improving data management and productivity.
It does not require much management once you set up correctly, so it saves time, allowing an admin to focus on other work.
Senior Network Engineer at Holy Redeemer Health System, Inc.
While our systems will be out of life in a few years, I believe that in that time, the payback from Microsoft Storage Spaces Direct will save us money on virtualization and storage costs, making it extremely beneficial after six years of use.
Senior Technical Support Engineer at a tech services company with 10,001+ employees
I see some ROI in Microsoft Storage Spaces Direct, such as saving time and money, and I estimate these savings to be about 30%.
IT Professional at NIPOS
For me, the biggest return on investment when using this solution is that we do not have to have much support staff to run it.
Senior Manager, IT Infrastructure & Support at a tech services company with 501-1,000 employees
The scalability challenge with previous systems is lessened with Nutanix since we can expand by adding new hardware without needing migrations.
Infrastructure Architect & Manager at a real estate/law firm with 201-500 employees
We are saving approximately 20% to 25% compared with the competition.
Global of Central Computing IT Operations Head at a retailer with 10,001+ employees
 

Customer Service

Sentiment score
7.6
Pure Storage FlashBlade's support is generally praised for responsiveness, despite occasional delays and communication issues, maintaining a favorable reputation.
Sentiment score
4.4
Microsoft Storage Spaces Direct support varies; many prefer hardware brands' support over Microsoft's, finding frontline support sometimes inadequate.
Sentiment score
7.5
Nutanix Unified Storage customer service is efficient and knowledgeable, with high satisfaction but room for improvement in complex cases.
I would rate them an eight out of ten.
IT Field Support Engineer at a tech vendor with 10,001+ employees
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.
Senior Network Engineer at Holy Redeemer Health System, Inc.
Their technical support has been perfect lately, so I would give it a 10.
IT Manager at Regin Dalarna
There were issues that the Microsoft team could not pinpoint, leading to delays in finding solutions.
Senior Technical Support Engineer at a tech services company with 10,001+ employees
Microsoft focuses on Azure as a cloud service.
Solution architect at Netland
They come on the call, start troubleshooting immediately, and resolve issues effectively.
Senior System Administrator at a tech vendor with 1,001-5,000 employees
They are very knowledgeable, and if they can't solve the problem, they find the answer within a day or so.
Manager, System Engineering at a mining and metals company with 10,001+ employees
I would give the customer service and technical support a ten out of ten.
PreSales at IKUSI
 

Scalability Issues

Sentiment score
8.6
Pure Storage FlashBlade excels in scalability, with seamless expansion, downtime-free growth, and praised support across various sectors.
Sentiment score
6.1
Microsoft Storage Spaces Direct offers scalability and flexibility, though users report challenges with minimal node setups affecting stability.
Sentiment score
7.8
Nutanix Unified Storage offers scalable, efficient, and stable storage expansion with easy integration and intuitive licensing for diverse environments.
Pure Storage FlashBlade is scalable.
Senior Network Engineer at Holy Redeemer Health System, Inc.
There are between 5 and 10,000 people using it in our organization.
IT Manager at Regin Dalarna
The scalability of Microsoft Storage Spaces Direct has been extremely good, allowing for both vertical and horizontal expansion.
Senior Technical Support Engineer at a tech services company with 10,001+ employees
It has limitations; it's configured for eight servers per site but can be scaled to 16 servers.
Solution architect at Netland
The scalability of Microsoft Storage Spaces Direct is limited.
IT Professional at NIPOS
This means you don't have to buy everything upfront; you can buy what you need and add more as you grow, which is advantageous.
Sales engineer at a tech vendor with 201-500 employees
These three components utilize scalability tools, enabling storage addition to nodes and supporting independent, linear performance growth.
System Engineer at Tata Consultancy
I find the scalability of Nutanix Unified Storage (NUS) to be excellent, and I would rate it a ten based on my clients' requirements.
Technical Lead at Cognizant
 

Stability Issues

Sentiment score
8.1
Pure Storage FlashBlade offers exceptional reliability and impressive stability, featuring 99.999% uptime, seamless upgrades, and high performance.
Sentiment score
6.0
Microsoft Storage Spaces Direct is stable with skilled management, but initial setup challenges require proper configuration and familiarity.
Sentiment score
8.0
Nutanix Unified Storage is stable and reliable, offering smooth upgrades, quick issue resolution, and effective technical support.
In case there is any issue with any blade, the data is moved to another.
IT Field Support Engineer at a tech vendor with 10,001+ employees
Microsoft Storage Spaces Direct has been incredibly stable as long as it is configured correctly; incorrect configurations lead to surprises, which is common with any product.
Senior Technical Support Engineer at a tech services company with 10,001+ employees
Storage Spaces Direct is stable enough, however, there can be some glitches.
Solution architect at Netland
We have not experienced these issues with Nutanix, which I attribute to the all-flash technology, the quality of their platform, and the responsiveness of the hyper-converged infrastructure.
System Administrator II at a manufacturing company with 10,001+ employees
Nutanix Unified Storage (NUS) is very stable.
Senior System Administrator at a tech vendor with 1,001-5,000 employees
It automatically triggers tasks, causing performance issues.
Nutanix Engineer at a manufacturing company with 10,001+ employees
 

Room For Improvement

Users recommend better pricing, cloud integration, support, documentation, and analytics for Pure Storage FlashBlade, improving efficiency and compatibility.
Microsoft Storage Spaces Direct requires improved management, integration, performance clarity, and better tools for monitoring and issue resolution.
Nutanix Unified Storage requires upgrades in storage capabilities, ease of use, FTP compatibility, analytics, security, support, and pricing.
Technical support definitely needs significant improvement.
Senior Network Engineer at Holy Redeemer Health System, Inc.
Its configuration should be easier.
IT Field Support Engineer at a tech vendor with 10,001+ employees
One way Pure Storage FlashBlade can be improved is by having more compatibility between the FlashArray and FlashBlade.
IT Manager at Regin Dalarna
The licensing for Microsoft Storage Spaces Direct could be improved to be clearer, as calculating license requirements requires significant expertise; even Microsoft resources do not provide the full picture needed for licensing, leaving gaps that become evident once we move to deploy solutions.
Senior Technical Support Engineer at a tech services company with 10,001+ employees
One year ago, I had a problem, and it was difficult to identify and solve due to a lack of tools.
Owner at Micronet Systems
The performance of Microsoft Storage Spaces Direct is challenging when trying to support both NVMe and SATA SSDs, and there are problems regarding performance that need to be addressed.
IT Professional at NIPOS
The main concern is pricing, which could deter some customers; addressing this would enhance its appeal.
Senior Solution Software Engineer at Gigamon
The system should move towards AI-driven optimization and enhance S3 object storage capabilities.
Corporate Trainer at a educational organization with 501-1,000 employees
System downtime can disturb the entire ecosystem and impact all applications.
System Engineer at Tata Consultancy
 

Setup Cost

Pure Storage FlashBlade is costly but valued for performance, reliability, and reduced administrative overhead, justifying its premium price.
Microsoft Storage Spaces Direct is cost-effective with Hyper-V integration, despite potential unexpected costs with Azure monitoring tools.
Nutanix Unified Storage offers competitive pricing, appreciated for cost-effectiveness, but may be expensive for small businesses or specific regions.
The pricing of Pure Storage FlashBlade is expensive compared to other products I used from other companies in the past, but one benefit is that they have built-in ransomware protection.
Senior Network Engineer at Holy Redeemer Health System, Inc.
Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making it good for us.
IT Manager at Regin Dalarna
I find the Azure Local to be a bit expensive, especially due to hidden costs associated with additional tools needed for monitoring and alerting.
Senior Technical Support Engineer at a tech services company with 10,001+ employees
Pricing is an advantage of Storage Spaces Direct.
Solution architect at Netland
Compared to buying three or four vendor solutions, it is much cheaper.
Senior Manager, IT Infrastructure & Support at a tech services company with 501-1,000 employees
The cost has doubled for the same amount of data, which was a challenge when presenting use case justifications for the increased cost.
Infrastructure Architect & Manager at a real estate/law firm with 201-500 employees
Nutanix Unified Storage (NUS) has definitely helped reduce our total cost of ownership.
Information Technology Managed Services Provider at SCE
 

Valuable Features

Pure Storage FlashBlade excels with ease of use, fast performance, scalability, seamless integration, and efficient storage features.
Microsoft Storage Spaces Direct offers high performance, redundancy, and reliability with seamless integration into Windows Data Center and cost-effectiveness.
Nutanix Unified Storage offers scalability, efficiency, robust security, seamless cloud integration, and simplifies IT management, enhancing storage reliability.
We can plug in many blades, and we can have data up to one terabyte.
IT Field Support Engineer at a tech vendor with 10,001+ employees
The best features of Pure Storage FlashBlade include better throughput and better performance.
Senior Network Engineer at Holy Redeemer Health System, Inc.
Pure Storage FlashBlade's scalability is one of the most valuable features, and importantly, it always works, allowing for seamless upgrades.
IT Manager at Regin Dalarna
The redundancy and fault tolerance features of Microsoft Storage Spaces Direct have helped maintain data integrity and availability in my company by providing multiple copies through three-way mirroring, delivering hardware performance needed for our applications, which is crucial.
Senior Technical Support Engineer at a tech services company with 10,001+ employees
For caching, I use disks with more total bits written, which protects the main storage because writes are combined.
Owner at Micronet Systems
The price performance is the best advantage of Microsoft Storage Spaces Direct.
Solution architect at Netland
Nutanix Unified Storage (NUS) is appreciated for its fault tolerance and redundancy at the cluster level, which ensures reliable storage of files, folders, and other information accessible on the client side.
Nutanix Engineer at a manufacturing company with 10,001+ employees
The cybersecurity features of Nutanix Unified Storage (NUS) when dealing with unstructured data, such as ransomware threats, provide the ability to detect and back up block-based storage, allowing me to restore repositories or sets of block storage with one button click, which is automatic.
Network Engineer at Alabama A & M University
My experience with using Nutanix Unified Storage (NUS) for data-intensive workloads is that we have many SQL Servers and they perform much better than they did when we used hybrid converged previously.
Senior Manager, IT Infrastructure & Support at a tech services company with 501-1,000 employees
 

Categories and Ranking

Pure Storage FlashBlade
Sponsored
Ranking in Software Defined Storage (SDS)
8th
Average Rating
8.8
Reviews Sentiment
7.5
Number of Reviews
39
Ranking in other categories
All-Flash Storage (12th), File and Object Storage (8th)
Microsoft Storage Spaces Di...
Ranking in Software Defined Storage (SDS)
9th
Average Rating
7.6
Reviews Sentiment
6.4
Number of Reviews
12
Ranking in other categories
No ranking in other categories
Nutanix Unified Storage (NUS)
Ranking in Software Defined Storage (SDS)
2nd
Average Rating
8.8
Reviews Sentiment
7.2
Number of Reviews
114
Ranking in other categories
All-Flash Storage (6th), Public Cloud Storage Services (5th), File and Object Storage (3rd), NVMe All-Flash Storage Arrays (4th)
 

Mindshare comparison

As of January 2026, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 3.3%, down from 4.6% compared to the previous year. The mindshare of Microsoft Storage Spaces Direct is 6.1%, down from 7.5% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 4.1%, down from 4.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Software Defined Storage (SDS) Market Share Distribution
ProductMarket Share (%)
Nutanix Unified Storage (NUS)4.1%
Pure Storage FlashBlade3.3%
Microsoft Storage Spaces Direct6.1%
Other86.5%
Software Defined Storage (SDS)
 

Featured Reviews

MikaelHellström - PeerSpot reviewer
IT Manager at Regin Dalarna
Has handled backup storage needs reliably and supports seamless upgrades
In environments requiring high throughput and low latency, Pure Storage FlashBlade provides high throughput and normal latency, but we do not have any application that requires low latency right now, so the latency of three to five milliseconds is considered kind of high. Pure Storage FlashBlade's ability to integrate with enterprise applications is not important for us, as we only want to present an S3 bucket for our backup, which we have done, and it works very fast. We use the Purity software's data reduction techniques; we have a backup software that compresses everything before sending it to the S3 bucket, achieving a data reduction of 1.1 to one. I would recommend Pure Storage FlashBlade to other companies because it's a very fast and scalable solution for anyone who needs it. On a scale of 1-10, I rate this solution an 8.
Stanislaw Mielicki - PeerSpot reviewer
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…
Amarnath Charugundla - PeerSpot reviewer
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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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
10%
Computer Software Company
10%
Government
7%
Computer Software Company
13%
Government
9%
Financial Services Firm
8%
Manufacturing Company
8%
Computer Software Company
21%
Manufacturing Company
12%
Educational Organization
6%
Financial Services Firm
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise11
Large Enterprise21
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise1
Large Enterprise3
By reviewers
Company SizeCount
Small Business26
Midsize Enterprise30
Large Enterprise64
 

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?
Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making...
What needs improvement with Pure Storage FlashBlade?
In my opinion, one way Pure Storage FlashBlade can be improved is by having more compatibility between the FlashArray...
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?
Overall, I find the cost of Microsoft Storage Spaces Direct to be affordable for the on-prem Windows pure solution, b...
What needs improvement with Microsoft Storage Spaces Direct?
The performance of Microsoft Storage Spaces Direct is challenging when trying to support both NVMe and SATA SSDs, and...
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?
It is very cost-effective compared to the traditional environment. With new hardware, it's a long-term investment but...
What needs improvement with Nutanix Unified Storage?
To improve Nutanix Unified Storage (NUS), cost is always an issue for every company, especially when we talk about la...
 

Also Known As

No data available
MS Storage Spaces Direct
Nutanix Files Storage, Nutanix Volumes Block Storage, Nutanix Objects Storage
 

Overview

 

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
Find out what your peers are saying about Microsoft Storage Spaces Direct vs. Nutanix Unified Storage (NUS) and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.