Nutanix Unified Storage (NUS) vs Quantum ActiveScale comparison

Nutanix Unified Storage (NUS) vs. Quantum ActiveScale

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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 File and Object Storage category, the mindshare of Pure Storage FlashBlade is 5.8%, down from 6.4% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 3.0%, up from 2.2% compared to the previous year. The mindshare of Quantum ActiveScale is 0.5%, down from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.

File and Object Storage

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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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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Frank Lai

Architecture Department at Supermicro Computer

Good performance and reliable but the setup is complex

We would like to see a self-sufficient installation. Nowadays it's open-source, but the installation is still tied to the vendor, which means it is unlikely that it is going to scale. I want them to tap into the broader community. It is really emerging, they have a year over year, 50% annual growth. With a 10-year-old company, it will certainly bring a lot of interest, and will certainly make it more successful, if they tap into that growing customer base. They have to make themselves relevant to the industry. The industry is totally geared to the Cloud, DevOps, and geared for agility. The software with the appliance in my set is already outdated, and it is not that it cannot sell, but it has to be tapping into the emerging and growing sectors to continue with the customers and businesses. This is what the requirement is, to improve their technology. Which means that they have to make themselves relevant to the industry.

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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

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

"Speed and ease of use are the two most valuable features."

"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."

"The product is scalable and easy to expand."

"I would rate this solution an eight plus. It has has good flexibility and stability, it's easy to manage and the response time is good."

"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."

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

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

More Pure Storage FlashBlade pros

"The feature that I find most useful in Nutanix Unified Storage (NUS) is the integration with Nutanix Move where you can seamlessly integrate it into your storage."

"The benefit for our customers is cost effectiveness."

"The most valuable feature is the unified dashboard, as it allows us to easily observe everything from a single location."

"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."

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

"I rate Nutanix Unified Storage (NUS) nine point five to ten, as it's easy to manage, scalable, has great performance, and includes advanced features."

"The availability of the environment is incredible, and with Prism Central, you're able to diagnose and go over issues quickly."

"The solution is stable and extremely easy to calibrate."

More Nutanix Unified Storage (NUS) pros

"Workflow is easy to manage and maintain."

"The technology is stable which is good."

Cons

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

"It would be beneficial if the layer could support the S3 protocol and be container ready in the next release."

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

"I have not seen ROI."

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

"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."

"The speed could be improved."

"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."

More Pure Storage FlashBlade cons

"The management is pretty clunky, in my opinion. It could be a little bit better."

"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."

"Nutanix Unified Storage (NUS) needs improvement in compatibility with Windows solutions."

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

"Nutanix Unified Storage (NUS) needs improvement, particularly for firmware upgrades, as sometimes updates take a whole day and it can be unclear whether the issue is with Nutanix Unified Storage (NUS) or the hardware, requiring us to reconfigure everything, which is a main point we want consolidated into one solution."

"Perhaps when it comes to deploying NUS virtual machines on top of CVMs, it should not be necessary for it to be in all of them or they should require fewer resources on the servers."

"I think Nutanix Unified Storage (NUS) can be improved with integration with vendors other than VMware or Dell, seeking more integrations with other storage vendors."

"The dashboard could be more customizable"

More Nutanix Unified Storage (NUS) cons

"We would like to see a self-sufficient installation."

"Lacks some ability to integrate with different systems."

Pricing and Cost Advice

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

"We used a reseller for the purchase."

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

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

"The product is very expensive."

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

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

"Our customers have seen a reduction in TCO."

More Pure Storage FlashBlade pricing and cost advice

"Nutanix is very competitive."

"It's competitive and attractive for moving things to it and then prioritizing those newly freed up resources for something else."

"The pricing is fair."

"I hope that it will stay the way it is. We have seen the changes in VMware and what happened to them. I have heard that Nutanix will raise the prices, but I hope that they will not do that."

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

"Nutanix is priced a bit higher than some of its competitors. A lot of Chinese companies like Huawei are entering the Saudi Arabian market trying to provide similar solutions for a lower price. It offers a good value, especially the support. Nutanix has a highly competent team. The after-sales support is excellent."

"The product is pricey."

"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."

More Nutanix Unified Storage (NUS) pricing and cost advice

"Quantum ActiveScale is open-source."

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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

31%

Educational Organization

12%

Manufacturing Company

Financial Services Firm

Computer Software Company

19%

Manufacturing Company

13%

Educational Organization

13%

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

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.

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...

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Product Reports

Pure Storage FlashBlade

Download Pure Storage FlashBlade product report

Nutanix Unified Storage (NUS)

Download Nutanix Unified Storage (NUS) product report

File and Object Storage

Download Quantum ActiveScale product report

Also Known As

No data available

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

ActiveScale, Quantum ActiveScale Object Storage, ActiveScale Object 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

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

StorNext File System
Increase productivity and reduce time to critical business insights with StorNext® File System. StorNext architecture delivers the necessary performance to get your business moving forward.

Quantum

Sample Customers

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

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

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Nutanix Unified Storage (NUS) vs. Quantum ActiveScale