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QoreStor vs Zadara comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Aug 19, 2025

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
Sponsored
Ranking in Software Defined Storage (SDS)
8th
Ranking in File and Object Storage
8th
Average Rating
8.8
Reviews Sentiment
7.8
Number of Reviews
38
Ranking in other categories
All-Flash Storage (15th)
QoreStor
Ranking in Software Defined Storage (SDS)
23rd
Ranking in File and Object Storage
22nd
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
9
Ranking in other categories
Backup and Recovery (51st), Data Replication (12th), Disk Based Backup Systems (7th), Storage Software (5th), Disaster Recovery (DR) Software (29th), Copy Data Management (6th)
Zadara
Ranking in Software Defined Storage (SDS)
18th
Ranking in File and Object Storage
20th
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
12
Ranking in other categories
All-Flash Storage (33rd), Compute Service (10th), Public Cloud Storage Services (15th)
 

Mindshare comparison

As of August 2025, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 4.4%, up from 4.4% compared to the previous year. The mindshare of QoreStor is 0.1%. The mindshare of Zadara is 2.0%, up from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Software Defined Storage (SDS)
 

Featured Reviews

Eric Black - PeerSpot reviewer
The ability to leverage multi-tenancy along with immutability is a huge benefit for us
The only thing I feel FlashBlade is missing is the SOS API. If it had SOS API, that would put it well over the top. Veeam Backup specifically has started to streamline their API, and they are doing that with SOS API. They have optimized it. Any of the S3 devices out there that support this SOS API can have far more API calls at once. On our side, that translates to better restoration. With SOS API, it can leverage far more restorations at a single given time or read from the device in simple terms. That results in maximizing the output and throughput from the device itself.
Jeff Manuszak - PeerSpot reviewer
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.
Kirubel Behailu - PeerSpot reviewer
Enhancing storage management efficiency with user-friendly experience
Our customers are using Zadara for their research and development environments. We provide infrastructure for government projects, but we are often not fully aware of their specific usage.  I typically use it for our infrastructure and offer both Zadara and Microsoft Azure to our customers Zadara…

Quotes from Members

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

Pros

"It has also helped to simplify storage for us in the way that it's easy to manage. Their automatic monitoring really helps when things break or are about to break. They see a problem coming and alert us even before our own system does."
"The most valuable features include the ease of implementation, ease of use and the speed that you can do backup and recovery on."
"I would rate Pure Storage FlashBlade a ten out of ten."
"Among its most appealing features are its ease of handling and minimal maintenance requirements."
"It performs well and it is also very fast."
"We can capacity plan at a greater level than we used to."
"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."
"We have seen a reduction in the total cost of ownership by around 20%."
"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."
"It integrates with various backup software solutions, which makes it compatible with existing backup workflows and processes."
"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."
"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 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."
"Quest QoreStor definitely saved us money."
"Data deduplication and replication would be the top two features. The encryption and cloud tiering are also attractive for the future."
"It provides very satisfactory storage performance."
"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."
"One of the most useful features is that they provide iSCSI as a service."
"The most valuable features of Zadara are its visibility and simplicity to use."
"I find Zadara's user-friendliness from both the customer and engineering perspectives highly appreciated."
"Zadara saves both time and money."
"Zadara is a fully-fledged platform, and our customers are happy with its use."
"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."
 

Cons

"It would be nice if you could store file-based in the same box with the same technology."
"It's on the expensive side, as expected for a niche product."
"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."
"It would be beneficial if the layer could support the S3 protocol and be container ready in the next release."
"The feature that we're waiting on is better integration with the cell services."
"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."
"Its configuration should be easier."
"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."
"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 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."
"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 management interface is in need of improvement. The graphical user interface (GUI) for the web management tools appears clunky, and not super intuitive."
"They need to increase their maximum capacity. Other than that, they're doing a pretty good job."
"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial."
"The initial installation was difficult because many steps required the command line interface (CLI). Maintenance can also be complicated, especially when deeper troubleshooting requires navigating the CLI and searching for logs."
"Currently, when we do firmware upgrades, it sometimes causes issues and is not as nondisruptive as desired."
"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."
"Having iSCSI over the internet using a VPN, the IPSec tunnel is really the only thing that I find missing from this product."
"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."
"The cost is not favorable as Zadara does not provide competitive rates for regions like South Africa and Ethiopia."
"The initial setup of the solution is complex."
"There is room for improvement in pricing as it is currently quite expensive."
 

Pricing and Cost Advice

"I rate the tool's pricing a seven to eight out of ten."
"Our customers have seen a reduction in TCO."
"It's a costly solution, but Pure Storage FlashBlade doesn't require additional licenses. All of the software is combined into one bundle."
"The price of this solution could be made more affordable."
"The pricing is relatively expensive due to the FlashBlade technology. However, for companies needing quick and reliable data access, the cost is justified."
"The price could be cheaper."
"We used a reseller for the purchase."
"In my opinion, we have paid the right price for the product. I don't think that it is too much or too little."
"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."
"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 pricing is very competitive and the fact that they have very compelling discounts for multi-year commitments is great."
"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."
"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."
"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."
"The price of Zadara is very good and it covers everything. There is no subscription needed."
"For our use, it's appropriately priced and overall, it's proved to be very cost-effective against other tier-one vendors."
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
12%
Manufacturing Company
10%
Government
7%
Performing Arts
11%
Computer Software Company
9%
Manufacturing Company
8%
Educational Organization
7%
Computer Software Company
21%
Manufacturing Company
16%
Government
5%
Comms Service Provider
4%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Pure Storage FlashBlade?
The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power out...
What is your experience regarding pricing and costs for Pure Storage FlashBlade?
The pricing of Pure Storage FlashBlade is expensive compared to other products I used from other companies in the pas...
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...
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...
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...
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...
What needs improvement with Zadara?
The initial installation was difficult because many steps required the command line interface (CLI). Maintenance can ...
What is your primary use case for Zadara?
I use this product as storage. Specifically, I use it as big storage. That's the main use case for Zadara ( /products...
What advice do you have for others considering Zadara?
As for the pros and cons, the main concerns are the complexity of the initial installation and the complicated mainte...
 

Also Known As

No data available
QoreStor
No data available
 

Overview

 

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL
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
Find out what your peers are saying about QoreStor vs. Zadara and other solutions. Updated: August 2025.
865,384 professionals have used our research since 2012.