Nutanix Unified Storage (NUS) vs QoreStor comparison

Nutanix and Quest Software are both solutions in the Software Defined Storage (SDS) category. Nutanix is ranked #2 with an average rating of 8.7, while Quest Software is ranked #21 with an average rating of 7.0. Nutanix holds a 4.8% mindshare in SDS, compared to Quest Software’s 1.1% mindshare. Additionally, 98% of Nutanix users are willing to recommend the solution, compared to 100% of Quest Software users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Nov 23, 2025

QoreStor and Nutanix Unified Storage (NUS) are competing products in the data storage market, each with distinct strengths and purposes. Nutanix Unified Storage (NUS) often holds an advantage with its feature-rich and scalable environment suitable for dynamic needs, while QoreStor is preferred for budget-conscious organizations due to its cost efficiency and effective support.

Features: QoreStor offers advanced data deduplication, compression, and integration with diverse backup solutions, making it efficient for storage optimization. On the other hand, Nutanix Unified Storage (NUS) provides comprehensive data management, scalable infrastructure, and efficient disaster recovery options, attracting enterprises looking for robust storage capabilities.

Room for Improvement: QoreStor needs to enhance its replication features and cloud integration for more comprehensive disaster recovery options, improve flexibility across different environments, and offer better end-to-end encryption solutions. Nutanix Unified Storage (NUS) could benefit from more competitive pricing, streamlined deployment processes for smaller companies, and increased focus on maintaining backward compatibility with legacy systems.

Ease of Deployment and Customer Service: QoreStor is known for its straightforward deployment and excellent customer support, facilitating smoother setup experiences for smaller operations. Nutanix Unified Storage (NUS) provides a flexible deployment model with cloud-native architecture, allowing for scalable solutions, and comprehensive customer service to manage complex configurations, ideal for larger enterprises.

Pricing and ROI: QoreStor stands out for its lower setup costs, appealing to budget-conscious organizations with good ROI through data reduction. In contrast, Nutanix Unified Storage (NUS) involves a higher initial investment but provides substantial ROI with its extensive features and scalability that ensure long-term operational benefits for larger-scale enterprises.

To learn more, read our detailed Nutanix Unified Storage (NUS) vs. QoreStor Report (Updated: January 2026).

Buyer's Guide

Nutanix Unified Storage (NUS) vs. QoreStor

January 2026

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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 February 2026, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 3.4%, down from 4.4% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 4.8%, up from 4.6% compared to the previous year. The mindshare of QoreStor is 1.1%. It is calculated based on PeerSpot user engagement data.

Software Defined Storage (SDS) Market Share Distribution
Product	Market Share (%)
Nutanix Unified Storage (NUS)	4.8%
Pure Storage FlashBlade	3.4%
QoreStor	1.1%
Other	90.7%

Software Defined Storage (SDS)

Featured Reviews

MikaelHellström

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.

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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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Calvin Hilgenstock

System Administrator at a wholesaler/distributor with 10,001+ employees

Cost savings and efficient data management improve operations but support quality varies

The importance of support is significant to me. I was working for a service provider, and all of our customers had a Quest or warning. Sometimes the support really underperforms. I always had to get it escalated or ask for someone specifically because those other people would just read knowledge-based articles that I had already done myself. Quest QoreStor does not work with any backup software, server, or storage hardware. It has the hardware compatibility list, and you need a specific number of IOPS, so it needs to run on decent hardware at least to have enough input-output operations. Otherwise, the setup result will be canceled. I'm not too sure if there are still physical appliances, but when I first started, we had some customers with a physical Quest QoreStor appliance, and it would only run on certain hardware. It doesn't work with every backup program. For example, Veritas Backup Exec is incompatible, but Veeam is compatible, and V Ranger is compatible as well. I didn't even know that Quest QoreStor has any static AI and behavioral AI technologies.

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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

"It's very easy-to-use."

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

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

"Pure Storage FlashBlade's scalability is one of the most valuable features, and importantly, it always works, allowing for seamless upgrades."

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

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

"It uses the same platform for connectivity so integration is seamless."

More Pure Storage FlashBlade pros

"The capacity is very good. They use fewer nodes than before. Each node is isolated with the CPU with the performance. It is a cluster node but works separately, so the performance will be tripled."

"It is a highly scalable solution."

"The benefit that our clients see is the security of the whole Nutanix platform where they have simplified usage."

"My company has benefitted from Nutanix Unified Storage because we have everything in a centralized place. With Prism Central, we can go to the console files and do what we have to do."

"Currently, the most valuable aspect of our Nutanix implementation is its file storage functionality."

"Based on my experience, I rate Nutanix Unified Storage (NUS) ten out of ten."

"In the beginning, when they sold us Nutanix Unified Storage (NUS), they told us the performance would be 30%. Then we came to them and said, 'You are a liar. It's not 30%, it's 800% increase.'"

"What I found to be the most valuable features were better performance and uptime."

More Nutanix Unified Storage (NUS) pros

"Quest QoreStor is very stable compared to our previous solution."

"It integrates with various backup software solutions, which makes it compatible with existing backup workflows and processes."

"QoreStor has helped us to reduce our backup storage requirements on-premises. We've been using the same devices for quite a while, and so it lets us keep using them as opposed to having to rip out all that hardware and create a new on-prem solution. The advantage here is even if we had to retire the hardware tomorrow, the QoreStor part doesn't change. We just have to have additional hardware and put the solution back on whatever hardware we pick and it'll do the same thing."

"The extreme compression of data is a big thing for us. We were looking for an online backup solution, and QoreStor is very good in terms of data compression. It helps us minimize the required storage in the Blob Storage environment."

"This software solution can be installed on many different types of hardware, which makes it very flexible. We can run it on virtual machines or virtual servers, providing convenience for solutions of varying sizes, from small to large."

"Deduplication is the most valuable feature. It saves us a lot of space. When we back up 100 terabytes of data, after dedupe, it only uses maybe five to six terabytes for the disk space in QoreStor."

"Data deduplication and replication would be the top two features. The encryption and cloud tiering are also attractive for the future."

"Quest QoreStor definitely saved us money."

More QoreStor pros

Cons

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

"Its configuration should be easier."

"On our dedupe during our initial buy, we were expecting a number a little higher like 4x. However, we are getting about 3.6. While it is close enough, it doesn't quite hit the numbers. So, this has been a challenge."

"Commvault has mainly driven the Analytics, providing data and reports. However, the product has room for improvement, especially regarding storage analytics. Upgrading firmware has caused issues, requiring feature disabling to revert to traditional backups. The firmware upgrades sometimes affect Commvault backups."

"I would like to see better integration."

"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."

"I would like to see more VM-Aware features in the next release of this solution."

"In the realm of micro-services, I think that Pure Storage can do well if they start getting in there and making their arrays more micro-services ready."

More Pure Storage FlashBlade cons

"The graphical user interface could provide more detail. It would be nice if we could click on the service and get some expanded definitions of them. When hiring new people, it's difficult to teach them how everything works, but if they can access everything, they can teach themselves."

"There is an occasional language barrier between some of the technicians, which can be challenging; however, that doesn't prevent us from being assisted, as they can remote in and use Pulse to view our cluster and gather logs and reports."

"Nutanix should improve the one-click upgrade. There are a lot of dependencies on third-party licenses and HP hardware we use internally. The one-click upgrade fails sometimes."

"The pricing could be improved."

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

"If they can add an integrated DLP feature, it would be great."

"Nutanix Unified Storage (NUS) can be improved involve the limitations I've seen in Files Analytics, specifically to the number of FSVMs today that File Analytics can analyze."

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

More Nutanix Unified Storage (NUS) cons

"The installation could use improvement. The initial installation was a little touchy and it's not really user-installable. You have to have a connection to support to install."

"The management interface is in need of improvement. The graphical user interface (GUI) for the web management tools appears clunky, and not super intuitive."

"The importance of support is significant to me. I was working for a service provider, and all of our customers had a Quest or warning. Sometimes the support really underperforms."

"They need to increase their maximum capacity. Other than that, they're doing a pretty good job."

"The setup of the software is definitely not the easiest thing. I worked a lot with Quest engineers, especially in the early days when we were first testing it and trying it out. I actually had some of the developers working with us at one point because they were going through these point releases, and I was having trouble getting it to work in this S3-compatible situation. We got it all working eventually, but setup is definitely not the easiest thing in the world."

"Support is one point of improvement for Quest QoreStor. Support is sometimes not adequate."

"There can be some kind of monitoring solutions to alert users to issues with the appliance or software, making it easy for customers to monitor their systems in the field."

"In terms of improvement, we would like to have an Air Gap feature to prevent a virus from attaching to something. So that when we don't do a backup, we want the QoreStor to stay offline. It would be a nice feature to have."

More QoreStor cons

Pricing and Cost Advice

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

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

"Our customers have seen a reduction in TCO."

"Licensing fees are paid yearly."

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

"It is within reason for what you get. From what we have found comparing it to other vendors, it is in the same range as others. Given the choice, we would definitely redeploy it based on the cost."

"The product is very expensive."

More Pure Storage FlashBlade pricing and cost advice

"The cost of Nutanix Unified Storage can be prohibitive for some small and medium-sized businesses, making it challenging for them to adopt the product."

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

"The pricing of Nutanix is generally higher compared to other vendors, which is a common observation, but it provides value through its support and features offered to customers."

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

"In my opinion, the product is fairly priced."

"It is quite expensive otherwise as it comes with three-tier peer underlying hardware."

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

"From what I hear from the management, Nutanix Unified Storage has comparatively decent pricing."

More Nutanix Unified Storage (NUS) pricing and cost advice

"Its pricing model is very attractive. You have one price, and you get everything from QoreStor."

"The pricing is good. It is competitive for a managed services provider. I like the ability to pay by the terabyte, allowing for an incremental cost that we and our customers can afford, so the solution grows with the customer."

"The cost is per terabyte, and overall, the cost was reasonable when compared to some competitors."

"Quest QoreStor's pricing is affordable. We evaluated Veeam, a well-known company for backup solutions, but found their pricing to be quite high. Veeam's price was almost double. For us, Quest QoreStor is very affordable."

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Top Industries

By visitors reading reviews

Financial Services Firm

12%

Manufacturing Company

10%

Computer Software Company

10%

Government

Computer Software Company

19%

Manufacturing Company

12%

Educational Organization

Financial Services Firm

Performing Arts

11%

Computer Software Company

Manufacturing Company

Educational Organization

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	21

By reviewers
Company Size	Count
Small Business	26
Midsize Enterprise	30
Large Enterprise	66

By reviewers
Company Size	Count
Small Business	5
Midsize Enterprise	1
Large Enterprise	2

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?

Regarding pricing, it is okay; we needed exactly this in size, and the price was a lot lower than competitors, making...

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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...

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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.

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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?

To improve Nutanix Unified Storage (NUS), cost is always an issue for every company, especially when we talk about la...

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What else besides data replication does QoreStor offer?

Quest QoreStor can be used for multiple things besides data replication. For example, it can be trusted to make a bac...

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How does Quest QoreStore protect your data?

One of our favorite features of Quest QoreStore for data protection isn't the backup, actually, though we're using it...

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How does Quest QoreStore solve repetitive data replicas?

When I first found out about data replication and the many benefits it had, I couldn't help but wonder - what about t...

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Comparisons

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Compared 18% of the time

MinIO vs Pure Storage FlashBlade

Compared 9% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 8% of the time

VAST Data vs Pure Storage FlashBlade

Compared 8% of the time

Scality RING vs Pure Storage FlashBlade

Compared 2% of the time

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Microsoft Storage Spaces Direct vs Nutanix Unified Storage (NUS)

Compared 8% of the time

Red Hat Ceph Storage vs Nutanix Unified Storage (NUS)

Compared 8% of the time

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

Compared 6% of the time

Amazon S3 vs Nutanix Unified Storage (NUS)

Compared 5% of the time

NetApp AFF vs Nutanix Unified Storage (NUS)

Compared 3% of the time

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Dell PowerProtect Data Domain vs QoreStor

Compared 5% of the time

CTERA Enterprise File Services Platform vs QoreStor

Compared 5% of the time

HPE StoreOnce vs QoreStor

Compared 4% of the time

Hitachi Universal Replicator vs QoreStor

Compared 4% of the time

Hitachi Thin Image Advanced vs QoreStor

Compared 4% of the time

More QoreStor Competitors

Product Reports

Buyer's Guide

Pure Storage FlashBlade

January 2026

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Buyer's Guide

Nutanix Unified Storage (NUS)

January 2026

Download Nutanix Unified Storage (NUS) product report

Buyer's Guide

QoreStor

January 2026

Download QoreStor product report

Also Known As

No data available

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

QoreStor

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 offers seamless scalability and high availability with a user-friendly interface, supporting multi-protocol operations while integrating effortlessly with cloud platforms. It enhances performance and security with features like ransomware protection and advanced data management.

Nutanix Unified Storage streamlines storage management by consolidating infrastructure and optimizing virtualization. It reduces operational complexity and enhances performance across diverse workloads. Despite feedback on integration challenges and suggestions for improving pricing, API capabilities, and security, it remains a key choice for dependable storage solutions. Calls for streamlined implementation and enhanced AI capabilities reflect its potential to better support evolving organizational strategies, driving cost efficiency and data accessibility.

What are the key features of Nutanix Unified Storage?

Intuitive Interface: Simplifies management with easy navigation.
High Availability: Ensures minimal downtime and reliable performance.
Seamless Scalability: Adapts to increasing data requirements effortlessly.
Multi-Protocol Support: Facilitates comprehensive operations across different systems.
Advanced Security: Offers ransomware protection and secure data backup.
Cloud Integration: Allows smooth interaction with cloud platforms.

What benefits and ROI should users evaluate?

Operational Efficiency: Reduced complexity through streamlined management.
Cost Optimization: Achieved via data compression and consolidation.
Enhanced Data Visibility: Improved insights with advanced data lens.
Performance Improvement: Significant uplift in workload handling and database performance.
Scalable Infrastructure: Enables growth and adaptation to changing demands.

In industries, Nutanix Unified Storage is deployed to centralize storage needs, improve database efficiency, and enhance file sharing and security. Organizations use it to consolidate infrastructure, support virtualization, optimize costs, and facilitate virtual machine hosting. It's instrumental in scalable object storage, ransomware protection, integrating legacy systems, and catering to critical applications.

Nutanix

QoreStor optimizes storage costs through advanced deduplication and compression, seamlessly integrating with backup infrastructures and supporting diverse hardware. It enhances data security with replication and offers flexible deployment with minimal maintenance.

QoreStor offers significant benefits in deduplication, which leads to space savings and reduced storage expenses. This system integrates effortlessly with backup platforms like NetVault and Veeam, functioning as a reliable backup target for both on-premises and cloud environments. The ease of integration is complemented by its replication capabilities, which add a layer of data security by enabling geographically dispersed backups. Its cloud tiering functionality extends storage capabilities, ensuring cost-effectiveness compared to other solutions. While enhancements are needed in areas like Cloud Tier support, Air Gap features, and GUI intuitiveness, the continued developments aim to further optimize storage and backup solutions.

What are QoreStor's key features?

Deduplication and Compression: Achieves high deduplication rates and space savings.
Seamless Integration: Works well with diverse backup infrastructures.
Replication: Facilitates data security through multi-location backups.
Cloud Tiering: Extends storage capabilities efficiently.
Minimal Maintenance: Requires low maintenance efforts.

What benefits should be considered in user reviews?

Cost-Effectiveness: Offers competitive pricing and optimized storage.
Storage Optimization: Reduces storage needs with advanced data handling.
Flexibility: Supports diverse hardware and deployment options.
Data Security: Enhances protection with robust replication features.

QoreStor is widely implemented in industries for backup and restore operations, providing data deduplication and compression as key functionalities. Its integration as a backup target across platforms like NetVault and Veeam makes it ideal for enterprises that require efficient data management and storage cost control. Many organizations utilize its features to optimize cloud storage seamlessly while focusing on internal data handling or acting as service resellers.

Quest Software

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

American Airlines, at&t, Bank of America. Barclays, ebay, Ford

Buyer's Guide

Nutanix Unified Storage (NUS) vs. QoreStor

January 2026

Free Report: Nutanix Unified Storage (NUS) vs. QoreStor

Find out what your peers are saying about Nutanix Unified Storage (NUS) vs. QoreStor and other solutions. Updated: January 2026.

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