QoreStor vs Zadara comparison

Why PeerSpot?

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. Quest Software holds a 2.1% mindshare in SDS, compared to Zadara’s 2.6% mindshare. 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

Download the report

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: September 2026).

Buyer's Guide

QoreStor vs. Zadara

September 2026

Download the complete report

Helped 913,806 peers since 2012

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 FlashBlade

Mindshare comparison

As of September 2026, in the Software Defined Storage (SDS) category, the mindshare of Everpure FlashBlade is 2.9%, down from 4.2% compared to the previous year. The mindshare of QoreStor is 2.1%, up from 0.1% compared to the previous year. The mindshare of Zadara is 2.6%, up from 1.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Software Defined Storage (SDS) Mindshare Distribution
Product	Mindshare (%)
Everpure FlashBlade	2.9%
Zadara	2.6%
QoreStor	2.1%
Other	92.4%

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.

Read full review

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.

Read full review

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.

Read full review

Quotes from Members

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

Pros

"The initial setup was straightforward. If you know how to plug in power and network you're pretty much qualified. They were on site to configure the network, the box to fit into our network architecture. Other than that, we self-managed from there."

"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 initial setup is pretty easy and simple."

"I like its size. It is smaller than the other competitors. We can plug in many blades, and we can have data up to one terabyte."

"It improves our organization by making the management much easier to access and not as time consuming, and it has made the management easy and simple."

"The solution provides many controllers."

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

"The tool's most valuable features are data warehousing, speedy recovery, and analytics. Its latest release is cost-effective."

More Everpure FlashBlade pros

"Overall, it simplifies the management of backup and gives me a more secure feeling that my data is going to be available if I need to retrieve it."

"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."

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

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

"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."

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

"The features we use for the data deduplication are nice because we're able to back up a much larger amount of data, yet it doesn't necessarily take up that much data on the devices."

"Since we started to resell QoreStor, we have been using it internally; it's better than other backup solutions we have used or evaluated."

More QoreStor pros

"One of the most useful features is that they provide iSCSI as a service."

"Zadara is a fully-fledged platform, and our customers are happy with its use."

"Zadara offered better cost and better cost-benefit regarding cloud compatibility and also data traffic over the internet."

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

"We know that we have a reputable, reliable, and consistent vendor on our side, that to me is important."

"Zadara's best features are the ease of provisioning the environment and its intuitive design."

"It provides very satisfactory storage performance."

"One of the most valuable features is its integration with other cloud solutions. We have a presence within Amazon EC2 and we leverage compute instances in there. Being able to integrate with compute, both locally within Zadara, as well as with other cloud vendors such as Amazon, is very helpful, while also being able to maintain extremely low latency between those connections."

More Zadara pros

Cons

"I would like to have Snapshots and Snapmail in the next release. People who came from a NetApp background, especially expect these features."

"It usually comes down to just what you hit and the value you're getting when you spend the money and license the products. I would always go, "If you want to make things better, lower your price and make your licensing simpler." There's always an opportunity around that."

"Compared to, for example, Hitachi NAS, the solution is not mature at all. It's just in its infancy as far as technology goes."

"The solution is expensive."

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

"The features provided for SMB customers are limited."

"I would also like to see better support for CIFS workloads."

"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 Everpure FlashBlade cons

"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."

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

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

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

"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."

"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."

"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 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

"There are still some storage features that they lack. For example, other vendors implemented the auto-tiering feature a long time ago, while Zadara Storage Cloud is just coming out with this feature today. So, they are a little bit late compared to the market."

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

"I would like to see them be a little bit more proactive in terms of the patches and updates that are available. I would like to see more disclosure and information around what fixes or what enhancements are available within a patch, and help in coordinating and scheduling that. Right now, it's driven more by the customer in reaching out via a support ticket."

"We had a lot of issues with the Zadara recently regarding performance, reports, and offloads, the customers could not send backups to Zadara."

"Cost-wise, because it's a pay-per-use model, it may ultimately end up costing us more in the long run than something we developed ourselves."

"I would like to see them be a little bit more proactive in terms of the patches and updates that are available."

"Currently, when we do firmware upgrades, it sometimes causes issues and is not as nondisruptive as desired."

"The cost is not favorable as Zadara does not provide competitive rates for regions like South Africa and Ethiopia."

More Zadara 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."

"Our licensing is renewed annually."

"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."

"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."

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

"The product is very expensive."

"The price is a little high."

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

More Everpure FlashBlade 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."

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

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

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

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

"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."

"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."

"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."

See which vendors are best for you

Use our free recommendation engine to learn which Software Defined Storage (SDS) solutions are best for your needs.

See recommendations

913,806 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Financial Services Firm

11%

Manufacturing Company

10%

Outsourcing Company

Computer Software Company

Manufacturing Company

14%

Comms Service Provider

11%

Financial Services Firm

10%

Construction Company

Comms Service Provider

13%

Construction Company

12%

Outsourcing Company

11%

Manufacturing Company

10%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	24

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

By reviewers
Company Size	Count
Small Business	13
Large Enterprise	8

Questions from the Community

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

I am a reseller, so I do not use Everpure FlashBlade personally, which means I do not have direct experience with pri...

See all answers

What needs improvement with Pure Storage FlashBlade?

I would not rate Everpure FlashBlade as a perfect score primarily due to the price point in the Brazilian market. Eve...

See all answers

What is your primary use case for Pure Storage FlashBlade?

Our main use case for Everpure FlashBlade is that we haven't closed a deal in Brazil yet. However, we are working on ...

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...

See all answers

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...

See all answers

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...

See all answers

What needs improvement with Zadara?

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

See all answers

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

Dell PowerScale vs Everpure FlashBlade

Compared 11% of the time

VAST Data vs Everpure FlashBlade

Compared 7% of the time

Everpure FlashArray vs Everpure FlashBlade

Compared 5% of the time

Dell ObjectScale vs Everpure FlashBlade

Compared 4% of the time

MinIO vs Everpure FlashBlade

Compared 4% of the time

More Everpure FlashBlade Competitors

Dell PowerProtect Data Domain vs QoreStor

Compared 4% of the time

Hitachi Universal Replicator vs QoreStor

Compared 3% of the time

Nutanix Unified Storage (NUS) vs QoreStor

Compared 3% of the time

DataCore SANsymphony vs QoreStor

Compared 3% of the time

HPE StoreOnce vs QoreStor

Compared 3% of the time

More QoreStor Competitors

Amazon EC2 vs Zadara

Compared 8% of the time

Amazon S3 vs Zadara

Compared 8% of the time

Red Hat Ceph Storage vs Zadara

Compared 5% of the time

Nutanix Cloud Infrastructure (NCI) vs Zadara

Compared 4% of the time

StarWind HyperConverged Appliance vs Zadara

Compared 4% of the time

More Zadara Competitors

Product Reports

Buyer's Guide

Everpure FlashBlade

September 2026

Download Everpure FlashBlade product report

Buyer's Guide

QoreStor

September 2026

Download QoreStor product report

Buyer's Guide

Zadara

August 2026

Download Zadara product report

Also Known As

Pure Storage FlashBlade

QoreStor

No data available

Overview

FlashBlade is a software designed for unifying file and object storage to support modern workloads such as analytics, artificial intelligence, and rapid data recovery. The software provides scalable, high-performance storage that enables simultaneous access for large numbers of users and workloads. Its features include support for various data protocols, data reduction techniques, and simple management tools to streamline operations. FlashBlade addresses business problems related to managing large volumes of unstructured data and facilitates faster data processing, enabling organizations to derive insights and value from their information assets. The software assists enterprises in consolidating their data storage infrastructure and improving efficiency in handling complex data tasks.

What are the most important features of FlashBlade?

Ease of Use: Simplifies data management with intuitive controls.
High Performance: Delivers exceptional speed for data-intensive tasks.
Scalability: Expands effortlessly to meet growing data demands.
Seamless Integration: Works well with existing systems for efficient operation.
Predictive Analytics: Provides insights to optimize performance proactively.
Inline Deduplication: Reduces storage footprint without compromising speed.
Disaster Recovery: Ensures data availability during disruptions.

What are the potential benefits or ROI in choosing FlashBlade?

Cost-effectiveness: Provides exceptional performance at a competitive price point.
Minimal Maintenance: Reduces operational overhead with simple management.
Clear Dashboards: Enhances decision-making with accessible performance metrics.
Reliable Performance: Offers consistent output, critical for data-intensive industries.

In data center consolidation, media management, and PACS archiving, FlashBlade meets specific industry needs. Companies in banking and healthcare leverage cost-effective performance and scalability for efficient data access, supporting AI training, big data analytics, and enterprise workloads with high IOPS requirements. Media and entertainment entities use it for video editing and storage management, benefiting from seamless NAS, file, and object storage.

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

Information Not Available

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

September 2026

Free Report: QoreStor vs. Zadara

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

DOWNLOAD NOW

913,806 professionals have used our research since 2012.

See our QoreStor vs. Zadara report.

See our list of best Software Defined Storage (SDS) vendors and best File and Object Storage vendors.

We monitor all Software Defined Storage (SDS) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.