QoreStor vs Zadara comparison

Quest Software and Zadara are both solutions in the Software Defined Storage (SDS) category. Quest Software is ranked #18 with an average rating of 7.0, while Zadara is ranked #11 with an average rating of 8.0. Additionally, 100% of Quest Software users are willing to recommend the solution, compared to 100% of Zadara users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Mar 1, 2026

Zadara and QoreStor compete in the storage solutions category. Zadara holds an advantage with its broad protocol support and hybrid deployment capabilities, while QoreStor excels with its deduplication and compression features.

Features: Zadara offers flexible deployment options including on-premises, colocation, and cloud configurations. It is known for iSCSI support, high fault tolerance, and easy scalability with a predictable cost model. QoreStor is recognized for data deduplication, compression, and integration with numerous backup software solutions. Its hardware independence and flexibility also appeal to users.

Room for Improvement: Zadara users seek faster feature development and enhancements in reporting tools and real-time synchronous replication. An iSCSI over the internet feature could enhance market appeal. QoreStor users request improvements in hardware compatibility, graphical interfaces, ransomware protection, and support automation.

Ease of Deployment and Customer Service: Zadara excels in 24/7 management and proactive monitoring, providing seamless hybrid cloud deployment and global support. QoreStor focuses on on-premises and private cloud deployments, lacking Zadara's extensive support model, with users desiring better service automation.

Pricing and ROI: Zadara is praised for its flexible and transparent pricing model, offering a pay-as-you-go approach that reduces upfront capital expenditure, though regional pricing disparities can affect competitiveness. QoreStor offers a capacity-based licensing model with predictable costs and focuses on reducing initial expenditure.

To learn more, read our detailed QoreStor vs. Zadara Report (Updated: June 2026).

Buyer's Guide

QoreStor vs. Zadara

June 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

Everpure FlashArray

Featured Reviews

Sowjanya MV

Technical Lead at Wipro Limited

Has improved performance for mission-critical workloads and enabled seamless non-disruptive upgrades

The availability is 99.99%, which is the main factor any customer would need because their data should be available whenever they want to access it. This is one main critical thing. It is very easy to upgrade since Pure Storage FlashArray handles it well. Everything is non-disruptive now; previously, there were forklift shifts, but now that is not the case. Pure Storage FlashArray says no to forklift upgrades. Usually hardware requires downtime, but Pure Storage FlashArray has improved their footprint so that they are not asking for downtime; everything is just a non-disruptive activity, which is why customers are more inclined towards Pure Storage FlashArray. Customers want more of the models in their environment due to the performance they are giving, and everything is in one Pure1 Array console where we can view all the models on one page or just an orchestration tool. You don't miss anything; you have replication, notifications about replication, and details about which host groups replication is happening in and if that replication is successful or failed. On a daily basis, our purpose is to create volumes for infrastructure; our daily activities include creating volumes and mapping them to the host, doing any migrations from a VM, clearing the data stores, and carving the volumes to those VMs. One key factor is the data compression with a ratio of 5:1, focusing on space efficiency, inline deduplication, and the compression Pure Storage FlashArray works on; that is a major factor we can suggest to any customer. Analytical capabilities are crucial. Daily, we check the throughput and consumption, and Pure Storage FlashArray provides predictions for one year regarding usage. This prediction helps plan updates well ahead. For support, we just raise a case, and they follow up and get it done. There is also AI readiness, but with the model R2, we don't have much of that AI readiness. For others, we do have AI readiness that predicts capacity based on daily or monthly trends, enabling us to analyze how much space we need or if we need to expand the disk shelf. From an operational point of view, a good feature is that if you accidentally delete a volume, it will be retained in the destroyed state for the next twenty-four hours, which is not the same with any other vendor. I have worked in this storage domain for the past fifteen years, and this option is remarkable, benefiting any L1 or L2 engineer. Additionally, from a compliance perspective, Pure Storage FlashArray has REST APIs enabled. I have not explored automation much, but from a security standpoint, it is strong with encryption data. If you want to automate, you can easily integrate with all clouds and explore Pure Cloud for scheduling workloads, including volume creation. Customers find benefit in Pure Storage FlashArray's single management pane of glass due to the dual controller and active-active setup. If one of the controllers goes down, all workloads automatically shift to the other controller, ensuring their data is safe and accessible at all times. This is a highlighted feature that any customer desires because their data should always be accessible. For SAN workloads, we use Pure Storage FlashArray because for SAN FC fiber channel, we don't use it; we use NetApp for NAS activities. We have clearly split this, so SAN is for mission-critical applications, while network-attached storage handles file systems. This architecture helps us maximize the benefit from Pure Storage FlashArray due to the significant workloads from this giant retail client. From a footprint and energy consumption perspective, you can see energy consumption from the Pure1 storage portal on a daily basis, and it is very compact. The three models we use consume only three units, which is quite low. From a footprint and data center perspective, it doesn't occupy much space. As everything moves to cloud, there are requirements to avoid excess spending on data centers, and Pure Storage FlashArray is efficient in energy consumption and is environmentally friendly.

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Marcus W

Works at a financial services firm with 11-50 employees

Backup storage has shrunk dramatically with deduplication but still needs stronger security options

The air gap feature is something I'd really like to see in QoreStor. There's no native air gap capability right now, and for security-conscious environments, that's a gap. The configuration export is also limited in QoreStor. If you want to document your setup or migrate configuration to a new instance, it requires more manual work than it should.

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Adeilson Araujo

Arquiteto De Cloud at Claro Brasil

Hybrid data migration has reduced costs and now needs stronger security and database integration

I would like to share something that I believe could improve Zadara's process, which is the issue of communication with databases. Today we have MongoDB as a cloud service, so integration with databases in Zadara would bring better performance in connection in SaaS models and in dynamic models that could bring a platform and a solution that could increase Zadara's usage in the market and in its business scope. Zadara can improve in the database integration area as I mentioned. Zadara can have better dynamism such as MongoDB in SaaS and bring this better dynamism by connecting and offering it within the clouds as a possibility of block storage within that partner cloud, such as AWS EBS, Google's cloud storage, or something within Azure. Creating a stronger partnership where this block storage can become an API connectable across various clouds but native to those clouds would be beneficial. I noticed simplicity in the security part during the time I used Zadara, so I believe Zadara's security needs to improve to provide more and deliver more security visibility to the end customer so that they feel more secure with data encryption and attack protection. A WAF on the API connection that goes through greater protection, something along those lines, could help guarantee that the data is protected by Zadara.

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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 all-flash disc is the most valuable feature of this solution."

"We noticed a dramatic increase in application performance when moving it from NetApp to Pure Storage."

"It helps simplify storage. When you're running Pure all-flash, you don't have to do a lot of the old Oracle best practices. You don't have to worry about putting log files on a different disk channel than the data files, and those types of issues... That has made it vastly easier to do large volumes, rapid provisioning in databases, without taking a performance hit."

"It's reduced our overhead management time on storage, since it is so simple to get in and just provision a volume, present it to the host, and then you are done."

"It has simplified our storage."

"We have seen savings in our storage, and the speed of deployment has gone from several days to a few minutes, reducing backup and restore times from 93 days to minutes and simplifying storage for us."

"If you need faster storage and a good product, this is the one you should go ahead with."

"The best features of Pure Storage FlashArray are its ease of use and user-friendly interface, and the performance allows all types of services to be visualized from a single point of interface, making it more robust and user-friendly."

More Everpure FlashArray pros

"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."

"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."

"Not having to be onsite to swap tapes on a daily, weekly, or monthly basis, alone, has really paid for its usage through the savings in time."

"Quest QoreStor definitely saved us money."

"I would rate QoreStor a ten out of ten for what it offers for the price."

"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."

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

"If storage costs are a problem, whether on-premises or cloud, QoreStor is worth a serious look."

More QoreStor pros

"The most valuable features of Zadara are its visibility and simplicity to use."

"Zadara Storage Cloud having 24/7 management saves me support and engineering costs because the storage and computing are managed by a third-party. We are able to focus more attention on the customer, which is truly our core business. Even at 1:00 AM or 2:00 AM at night, someone will answer, which is important."

"With Zadara Storage Cloud, you simplify the management, which is absolutely true."

"Zadara has positively impacted my organization as it has added power and momentum to our vision, particularly when working with AI."

"Zadara is all-flash so it has a very high IOPS."

"Overall Zadara is a useful solution that provides good services."

"We have seen a return on our investment with Zadara storage, and it's because it has enabled us to deliver almost limitless capacity."

"It's very easy to expand and compared to other storage systems that we've used, it's a lot more expandable and a lot more flexible in how it's deployed."

More Zadara pros

Cons

"The interface lacks the same level of control as some other arrays I've used."

"Pure Storage had operational challenges between 2016 to 2018, impacting perceived reliability."

"The initial setup of the product is complex."

"I would like some performance analytics which go deeper than today. It should be specific to some hosts and applications. This would be good."

"In terms of improvement, Everpure FlashArray could have more attractive UI/UX design compared to other solutions."

"We ran into some issues with the program at first and we had to work around those issues to fix our problems."

"The solution could improve by having a multi-tenant feature."

"The problem is that we can only make a few groups, around five or six groups. I like groups and we need a lot of them. We had to put all the information in only a few groups and cannot make a more detailed separation of them."

More Everpure FlashArray 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."

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

"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial."

"The setup of the software is definitely not the easiest thing in the world."

"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."

"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."

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

More QoreStor cons

"The management interface is more geared towards end-users rather than a service partner like ourselves, and there are improvements that can be made around that."

"Zadara can be improved by making their interfaces more attractive. They currently look like simple PHP interfaces, but they need to customize and work on their interfaces and user interfaces significantly."

"In the next release, there can be some improvements to the web console by adding more features because the console is simple. Additionally, the calculator could improve."

"I wouldn't say that it's very stable. It can recover from outages, however, there's still room for improvement on the stability."

"The initial setup of the solution is complex."

"Having iSCSI over the internet using a VPN, the IPSec tunnel is really the only thing that I find missing from this product."

"There is room for improvement in pricing as it is currently quite expensive."

"The range of support of VMware could be better. It can support Windows, however, it cannot support other operating systems like IBM AIX. This needs to improve."

More Zadara cons

Pricing and Cost Advice

"The licensing is $100,000."

"We have seen a reduction in total cost of ownership (TCO)."

"Pure Storage is expensive. It comes with features, so you get what you pay for. It is expensive compared to our old storage systems, but from the amount of human effort that you have to pay to babysit a storage system, it reduces that. I don't know if the TCO is reduced, but it's not a concern for us."

"The price of the Pure Storage Flash Array is too high and there needs to be more contact clarity. We went with the Evergreen plan and I don't have clarity on what am I supposed to pay each year or every three years. There was not much contract clarity."

"It's priced higher than the market."

"The pricing of Pure Storage FlashArray is reasonable."

"The price of the solution can be a bit expensive. There is an additional fee for support."

"The price of the solution is not expensive."

More Everpure FlashArray pricing and cost advice

"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."

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

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

"It is a nice licensing model and it makes it quite simple because we just pay for what we use, and the bill that comes shows us exactly what customers are using what resources."

"The pricing and licensing are very simple and the cost is predictable, although, like everything that you pay for as you use, you have to be mindful of what you're using."

"The pricing is very competitive and the fact that they have very compelling discounts for multi-year commitments is great."

"If you just take the street price of Zadara Storage Cloud and look up the price or cost per hour, then you could think that Zadara Storage Cloud is extremely expensive or a solution only for enterprise use. That is not true. You need to compare the entire system. This means that you don't stop looking at just the street price, but you need to consider all the features, requirements, and costs of support as well as the extra cost that other vendors have. Other players just play with hidden, additional costs. Everything is included in Zadara Storage Cloud's licensing cost; what you get is what you pay for."

"One of the factors that ruled out several providers was cost. They were way too expensive for the volume of data that we needed and the speed at which we needed to be able to manage it. There aren't a lot of providers that can do that."

"For our use, it's appropriately priced and overall, it's proved to be very cost-effective against other tier-one vendors."

"The price of Zadara is very good and it covers everything. There is no subscription needed."

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Top Industries

By visitors reading reviews

Manufacturing Company

13%

Financial Services Firm

11%

Construction Company

10%

Comms Service Provider

Manufacturing Company

15%

Financial Services Firm

11%

Comms Service Provider

10%

Construction Company

Comms Service Provider

13%

Construction Company

12%

Computer Software Company

10%

Manufacturing Company

10%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	71
Midsize Enterprise	38
Large Enterprise	159

By reviewers
Company Size	Count
Small Business	7
Midsize Enterprise	1
Large Enterprise	2

By reviewers
Company Size	Count
Small Business	13
Large Enterprise	7

Questions from the Community

Which should I choose: HPE 3PAR StoreServ or Hitachi Virtual Storage Platform F Series?

Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Stor...

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

I find the pricing of Everpure FlashArray to be quite high compared to other storage solutions; however, the reliabil...

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What needs improvement with Pure Storage FlashArray?

I believe we have covered the most important features; the architecture of Pure Storage is essential, and features su...

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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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What needs improvement with Zadara?

Zadara can be improved by making their interfaces more attractive. They currently look like simple PHP interfaces, bu...

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What is your primary use case for Zadara?

My main use case for Zadara is to build and validate the GPU as a Service and the AI sovereignty that they're working...

See all answers

What advice do you have for others considering Zadara?

Regarding Zadara's AI capabilities, I think it depends on the MSPs that they are performing collaborations with, and ...

See all answers

Comparisons

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Dell PowerProtect Data Domain vs QoreStor

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Compared 4% of the time

DataCore SANsymphony vs QoreStor

Compared 3% of the time

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Nutanix Cloud Infrastructure (NCI) vs Zadara

Compared 4% of the time

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Product Reports

Buyer's Guide

Everpure FlashArray

August 2026

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Buyer's Guide

QoreStor

July 2026

Download QoreStor product report

Buyer's Guide

Zadara

July 2026

Download Zadara product report

Also Known As

Pure Storage FlashArray

QoreStor

No data available

Overview

The FlashArray family delivers consistent, high-performance data services across block, file, and object workloads. As part of the Everpure Platform, it provides the foundation for a unified data plane, enabling applications to reliably access, protect, and manage data across environments with simplicity and predictability. With built-in capabilities such as inline data reduction, snapshots, replication, and ransomware resilience, FlashArray ensures efficient operations, protected data, and consistent application uptime.

As the foundation of the (unified) data plane, FlashArray enables policy-driven automation, monitoring, and centralized management while integrating across cloud and on-premises environments. Built on an Evergreen architecture, it supports non-disruptive upgrades and continuous performance improvements over time while simplifying operations at scale.

What Key Features Does FlashArray Offer?

Simplicity and Speed: Easy management and rapid performance enhancements.
Data Reduction: Effective deduplication and compression.
Flash Architecture: Seamless upgrades and outstanding resilience.
VMware Integration: Excellent compatibility with virtualization platforms.
Predictive Analytics: Strong insights for proactive management.

What Benefits Should Users Consider?

Reliability: Proactive support with minimal downtime.
Efficiency: Reduced storage footprint and enhanced data management.
Performance: Faster processing speeds and low latency.
User Experience: Simplified management with Evergreen model.

In industries like finance, banking, and healthcare, FlashArray supports high-performance storage needs focusing on virtualization and database environments. Employed for VMware workloads, disaster recovery, and storage provisioning, it ensures application performance in private or hybrid cloud setups while enhancing management of virtualized environments.

Everpure (formerly Pure Storage)

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

Zadara integrates cloud solutions with low latency and a pay-as-you-go model, offering user-friendly scalability and IOPS performance. Its robust features such as single-tenant experience and dedicated cores make it an essential choice for enterprise storage needs.

Zadara is designed for seamless cloud integration supporting major cloud vendors. Its offerings include dedicated cores and hybrid drive options within a scalable environment. Providing managed services, Zadara is adaptable with predictable pricing. Its reliability is enhanced by iSCSI service, supporting fault tolerance and data management across data centers.

What are the key features of Zadara?

Cloud Integration: Seamlessly supports major cloud vendors for easy deployment.
Low Latency: Ensures quick data access and processing.
Pay-as-You-Go: Flexible pricing model based on usage.
Single-Tenant Experience: Exclusive resources for enhanced performance.
Dedicated Cores: Provides consistent and reliable service quality.
Hybrid Drive Options: Offers a mix of storage solutions fitting diverse needs.
Managed Services Support: Comprehensive service management and support for users.

What benefits should users evaluate when considering Zadara?

Scalability: Easy to scale resources according to demand.
Flexibility in Deployment: Options for various enterprise storage configurations.
Predictable Pricing: Cost forecasts help manage budgets effectively.
User-Friendliness: Intuitive operations streamline processes.
IOPS Performance: High input/output operations per second for expedited tasks.

In industries managing large-scale data storage and disaster recovery, Zadara provides a foundation for secure and efficient data handling. It supports managed service providers with infrastructure solutions, including backup and disaster recovery, enabling seamless off-site storage and maintaining business continuity across different sectors.

Zadara

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas

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

Time, Inc. A&E Network, The Washington Post, News UK, McGraw Hill, Gilt, Toshiba, Deloitte, VMware

Buyer's Guide

QoreStor vs. Zadara

June 2026

Free Report: QoreStor vs. Zadara

Find out what your peers are saying about QoreStor vs. Zadara and other solutions. Updated: June 2026.

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