Nexenta vs QoreStor comparison

Nexenta by DDN and Quest Software are both solutions in the Software Defined Storage (SDS) category. Nexenta by DDN is ranked #15 with an average rating of 9.0, while Quest Software is ranked #23 with an average rating of 7.0. Nexenta by DDN holds a 1.4% mindshare in SDS, compared to Quest Software’s 0.1% mindshare. Additionally, 66% of Nexenta by DDN users are willing to recommend the solution, compared to 100% of Quest Software users who would recommend it.

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Executive SummaryUpdated on Aug 19, 2025

Nexenta and QoreStor compete in the software-defined storage category. While Nexenta offers strong flexibility and support, QoreStor takes the lead in storage efficiency with its superior compression and deduplication features.

Features: Nexenta provides open-source solutions, seamless integration, and scalability. It supports a flexible and cost-effective storage framework. QoreStor emphasizes data deduplication, efficient compression, and storage optimization, beneficial for reducing operational costs.

Ease of Deployment and Customer Service: Nexenta is known for its adaptable deployment and comprehensive support, facilitating integration into existing infrastructures. It offers extensive customization options. QoreStor is recognized for its straightforward setup process and efficient customer service, which ensures reduced deployment time.

Pricing and ROI: Nexenta presents competitive pricing with an emphasis on minimizing initial setup costs, providing strong ROI due to its open-source adaptability. QoreStor, despite a higher initial cost, offers substantial long-term savings through its advanced data reduction technologies, making it worthwhile for those seeking storage optimization benefits.

To learn more, read our detailed Nexenta vs. QoreStor Report (Updated: September 2025).

Buyer's Guide

Nexenta vs. QoreStor

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 October 2025, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 4.1%, down from 4.5% compared to the previous year. The mindshare of Nexenta is 1.4%, up from 0.6% compared to the previous year. The mindshare of QoreStor is 0.1%. It is calculated based on PeerSpot user engagement data.

Software Defined Storage (SDS) Market Share Distribution
Product	Market Share (%)
Pure Storage FlashBlade	4.1%
Nexenta	1.4%
QoreStor	0.1%
Other	94.4%

Software Defined Storage (SDS)

Featured Reviews

Parul-Patel

Senior Network Engineer at Holy Redeemer Health System, Inc.

High performance and throughput enhance IT backup management

The multi-dimensional scale-out design feature of Pure Storage FlashBlade is not in use in our environment. Regarding data reduction technologies, we don't get much deduplication because the data is already deduplicated from our FlashArray before we get to backup, so there is no benefit of deduplication. Regarding the integration with cloud-native ecosystem tools, we are not on cloud; we are strictly an on-premises solution. Pure Storage FlashBlade is not used by any end-user; it's used only for IT backup, with only about four people in our group managing it. I cannot recommend Pure Storage FlashBlade to other users depending upon their financial situation because it's an expensive solution, and the cost is very high, including licensing and renewal every year. I rate Pure Storage FlashBlade an eight out of ten.

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Anil Rahulwar

Storage Engineer at Movate

Offers good features like Fusion and stable product with better customer service

Fusion is the only best feature, but it's a very good feature. Nexenta is a very old product. Nexenta is a well-established product used in the UK, US, India, Dubai, Qatar, and other countries. It is very good. The interface is up to date. Everything is up to date. The OS version was recently upgraded to 5.5 FP3. AI features: DataDirect Networks owns Nexenta and has won awards for AI. They continuously work on AI features. DDN also has a product called Tintri Infinia with AI features. And NVIDIA product also has AI features. I look forward to working on those products.

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Jeff Manuszak

CTO at EDSI

Cost-efficient, highly scalable, and installable on different types of hardware

They could improve on support a little bit. We have not had to engage their support much, but when we do have issues, it can take longer to get things resolved. We are pretty lenient as we do a lot of IT support ourselves. We are not very hard on support organizations, but when a customer has a support issue, it would be easier if the support processes were a little bit more automated. It would be beneficial to have an easier way to upload diagnostic dump files. They can make it easy for the customer to collect the diagnostic data. 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. This is especially critical because it stores customers' backups, and a failure can have significant business impacts. If a customer does not have the backups and has a disaster, they can be out of business, so monitoring is key.

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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

"We have seen a reduction in the total cost of ownership by around 20%."

"The initial setup is pretty quick."

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

"We have integrated it with VMware. The integration process is pretty good. Especially with VMware, it helps with the capacity of it."

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

"The ease of deployment and management has helped us simplify our storage. We also do not have to worry about capacity management as much. A lot of these things are native to Pure Storage."

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

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

More Pure Storage FlashBlade pros

"It has a feature called Fusion that makes it more secure and productive."

"Quest QoreStor definitely saved us money."

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

"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."

"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."

"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 dedupe and compression are pretty extreme. On disk, we're getting dedupe rates of up to 65 percent of data and compression of 34 percent. When you go to the cloud, it's more like 76 percent for dedupe and almost 50 percent for compression."

"We need revisions and safe backup so that it could be held up in court, but deduplication and compression are the main features why we have Quest QoreStor. That's where it really shines. I use ZFS and XFS at home, and Quest QoreStor is even better."

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

More QoreStor 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."

"I would like to see more monitoring capability included in the next release of this solution."

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

"We initially encountered challenges with the assembly process due to issues with the documentation required during setup, an area where Pure Storage needs improvement."

"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."

"The documentational aspect of FlashBlade needs improvement."

"I have not seen ROI."

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

More Pure Storage FlashBlade cons

"There were some SMB issues, but they were resolved."

"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."

"They could improve on support a little bit. We have not had to engage their support much, but when we do have issues, it can take longer to get things resolved."

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

"The ransomware protection of QoreStor could use improvement."

"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial. After everything is set up and configured, there should be a way to export the configuration. In case something happens to the QoreStor server, and we need to reinstall and configure everything, being able to import the configuration would be helpful. This feature does not currently exist."

"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 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."

"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."

More QoreStor cons

Pricing and Cost Advice

"Our customers have seen a reduction in TCO."

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

"We used a reseller for the purchase."

"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."

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

"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."

More Pure Storage FlashBlade pricing and cost advice

Information not available

"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."

"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."

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

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

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Financial Services Firm

11%

Manufacturing Company

10%

Government

No data available

Performing Arts

15%

Computer Software Company

10%

Financial Services Firm

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	20

No data available

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?

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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What needs improvement with Nexenta?

There were some SMB issues, but they were resolved in the latest version. Four to five customers faced intermittent i...

See all answers

What is your primary use case for Nexenta?

It's for file systems. It's a NAS solution, and it has flexibility. There shouldn't be any outages because if one nod...

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What advice do you have for others considering Nexenta?

Overall, I would rate it an eight out of ten. I would recommend using it.

See all answers

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

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Compared 19% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 11% of the time

MinIO vs Pure Storage FlashBlade

Compared 10% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 9% of the time

VAST Data vs Pure Storage FlashBlade

Compared 7% of the time

More Pure Storage FlashBlade Competitors

Red Hat Ceph Storage vs Nexenta

Compared 60% of the time

Nutanix Cloud Infrastructure (NCI) vs Nexenta

Compared 40% of the time

More Nexenta Competitors

No data available

Product Reports

Buyer's Guide

Pure Storage FlashBlade

September 2025

Download Pure Storage FlashBlade product report

Buyer's Guide

Software Defined Storage (SDS)

September 2025

Download Nexenta product report

Buyer's Guide

QoreStor

September 2025

Download QoreStor product report

Also Known As

No data available

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

Nexenta is the global leader in Open Source-driven Software-Defined Storage - what we call Open Software-Defined Storage (OpenSDS).We uniquely integrate software-only "Open Source" collaboration with commodity hardware-centric "Software-Defined Storage" (SDS) innovation.

Nexenta by DDN

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

GMO, Northern Backup, Cox Communications, University of Toronto, ScaleMatrix, Wipro, Ruhr University, Drillinginfo, George Washington University, Walton Electric, Faculty of Physics, NAU, ServerCentral

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

Buyer's Guide

Nexenta vs. QoreStor

September 2025

Free Report: Nexenta vs. QoreStor

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