Dell PowerProtect Data Domain vs QoreStor comparison

Dell Technologies and Quest Software are both solutions in the Disk Based Backup Systems category. Dell Technologies is ranked #1 with an average rating of 8.8, while Quest Software is ranked #8 with an average rating of 7.0. Dell Technologies holds a 35.1% mindshare in DBBS, compared to Quest Software’s 3.8% mindshare. Additionally, 90% of Dell Technologies users are willing to recommend the solution, compared to 100% of Quest Software users who would recommend it.

Dell PowerProtect Data Domain

Read 93 Dell PowerProtect Data Domain reviews

13,559 Views
4,610 Comparison Views

90% willing to recommend

QoreStor

Read 9 QoreStor reviews

4,102 Views
287 Comparison Views

100% willing to recommend

Dell PowerProtect Data Domain

QoreStor

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Feb 8, 2026

Dell PowerProtect Data Domain and QoreStor compete in the data protection category, offering distinct advantages. Dell PowerProtect Data Domain may have the edge in robustness and reliability with its superior integration capabilities and comprehensive support.

Features: Dell PowerProtect Data Domain offers advanced deduplication, compression, and seamless integration with various backup software. Its replication capabilities ensure data security during failures. QoreStor provides significant storage reduction through its efficient deduplication and compression, with flexible deployment across multiple hardware platforms and integration with leading backup solutions.

Room for Improvement:Dell PowerProtect Data Domain could enhance its price structuring, cloud compatibility, and the user interface's simplicity. Improvements in real-time online backup performance and ransomware protection are also suggested. QoreStor requires enhancements in ransomware protection and support responsiveness, along with advanced monitoring solutions and configuration export functionalities.

Ease of Deployment and Customer Service: Dell PowerProtect Data Domain is known for robust customer service with responsive and proactive technological support. Its deployment is straightforward and reliable. QoreStor is noted for deployment flexibility across both cloud and physical setups, though improving the escalation process in customer support would enhance user experience.

Pricing and ROI: Dell PowerProtect Data Domain delivers substantial ROI through reduced backup sizes and quicker recovery despite higher initial costs, making it more suitable for large enterprises. QoreStor offers cost-efficient licensing, scalable based on usage, appealing especially to managed service providers, ensuring affordability as data grows.

To learn more, read our detailed Dell PowerProtect Data Domain vs. QoreStor Report (Updated: April 2026).

Buyer's Guide

Dell PowerProtect Data Domain vs. QoreStor

April 2026

Download the complete report

Helped 894,668 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

Dell PowerProtect Data Domain

Ranking in Disk Based Backup Systems

1st

Average Rating

8.6

Reviews Sentiment

6.7

Number of Reviews

Ranking in other categories

Deduplication Software (1st)

QoreStor

Ranking in Disk Based Backup Systems

8th

Average Rating

8.2

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

Backup and Recovery (50th), Data Replication (9th), Storage Software (4th), Disaster Recovery (DR) Software (27th), Software Defined Storage (SDS) (19th), Copy Data Management (6th), File and Object Storage (23rd)

Mindshare comparison

As of May 2026, in the Disk Based Backup Systems category, the mindshare of Dell PowerProtect Data Domain is 35.1%, down from 40.5% compared to the previous year. The mindshare of QoreStor is 3.8%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Disk Based Backup Systems Mindshare Distribution
Product	Mindshare (%)
Dell PowerProtect Data Domain	35.1%
QoreStor	3.8%
Other	61.1%

Disk Based Backup Systems

Featured Reviews

Branko Cirovic

Storage Engineer at Comtrade Group

Provides seamless backup integration and long-term reliability for enterprise data protection

The price is quite high; this product is not considered cheap. Additionally, if you use higher availability boxes, they also come at a premium price. However, they provide business continuity, which is the main reason why companies invest in this solution. Tape is slow; when restoring several virtual machines or databases amounting to several terabytes, Dell PowerProtect Data Domain represents the fastest and most reliable solution, ensuring great integration with backup software. If a customer has limited budget constraints, they may opt for cheaper external storage comprised of just a bunch of disks and utilize it for backup, as backup is not a business-critical service. However, I see great value in Dell PowerProtect Data Domain because it is fully automated, features great integration with backup software, and provides good value for money. I would rate software support as a ten, while I would give hardware support a seven. I never give any product a perfect score; I think Dell PowerProtect Data Domain deserves a nine. The only minor problems are the certificate issue and the price. These certificate issues are quite rare and mainly arise when we forget to restart and upgrade the box for several years.

Read full review

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.

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 compression aspect of the solution is great."

"The data application compression is great."

"The deduplication feature is the most valuable part of the solution."

"By using Data Domain, we get the advantage of data deduplication, reducing data size."

"This solution has a feature called Domain Boost, which allows for source deduplication and compression."

"The most valuable features of the solution are recovery point, compression, and deduplication."

"The most valuable feature is the performance because you can back up data really quickly."

"The solution has been awesome over the last ten years, offering stability and reliability, which I recommend for stable storage."

More Dell PowerProtect Data Domain pros

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

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

"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."

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

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

"QoreStor has helped to reduce our backup storage requirements on-premise by at least 90%."

"QoreStor has helped us to reduce our backup storage requirements on-premises, and we've been using the same devices for quite a while, so it lets us keep using them as opposed to having to rip out all that hardware and create a new on-prem solution."

More QoreStor pros

Cons

"The pricing could be better, but it's still not too expensive."

"I would not recommend this solution to others."

"I have not observed any significant time savings, resource savings, or efficiency improvements with Dell PowerProtect Data Domain."

"When you use Data Domain, you have to have at least 20% free space so it can work properly. Sometimes we struggle with that, because we wanted to use all the free space, but then Data Domain becomes really slow. I understand that 20% is needed to process all the data, and doing the duplication and compression and all that, but it would be a big improvement if they did not require that 20%, because it is just too much to have available."

"Their licensing matrix is confusing and is a feature they need to improve."

"Dell PowerProtect DD (Data Domain) is expensive. Also, it has a sort of a big physical footprint that data domains have, and that's part of the problem."

"Data Domain lacks compatibility with fiber channels and tapes. We can't use it with a tape library."

"In some of the entry level models (DD2200, 2500) you have to be aware of the scalability limitations and ensure you purchase a large enough controller if you foresee growth and scaling beyond its recommended operating parameters as typically the controllers cannot be upgraded in place or without data migration."

More Dell PowerProtect Data Domain cons

"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."

"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."

"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."

"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 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."

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

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

More QoreStor cons

Pricing and Cost Advice

"Pricing for this product could still be improved, though several years ago, its price was very high. When buying an IDPA product such as Dell EMC PowerProtect DD (Data Domain), you don't have to buy anything else, because you'll have an integrated solution: a data domain appliance plus software."

"The cheaper device costs around $70,000."

"The yearly subscription is very affordable for our customers, but the price could be a little cheaper overall."

"It is expensive, but the performance and deduplication cover for the cost."

"The price is on the high side."

"I can't remember what the license costs are. They might be paid monthly or every two months."

"The solution is expensive. However, if you pay less you receive less, it is cost-effective."

"We usually buy products at the end year, and the license is included."

More Dell PowerProtect Data Domain pricing and cost advice

"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."

See which vendors are best for you

Use our free recommendation engine to learn which Disk Based Backup Systems solutions are best for your needs.

See recommendations

894,668 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Financial Services Firm

10%

Manufacturing Company

10%

Computer Software Company

10%

Government

Manufacturing Company

12%

Comms Service Provider

10%

Financial Services Firm

10%

Performing Arts

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	37
Midsize Enterprise	24
Large Enterprise	42

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	1
Large Enterprise	2

Questions from the Community

What is your primary use case for Dell EMC PowerProtect DD (Data Domain)?

Dell PowerProtect Data Domain is mainly used for backup as a target for backup. Previously, I was working in Veeam, and nowadays, I am working with Commvault. For both backup software options, the ...

See all answers

What is your experience regarding pricing and costs for Dell PowerProtect DD (Data Domain)?

This is very good and it can be integrated with any third-party backup solution. I always recommend going with it if the customer is an enterprise customer or it is basically a big SMB. I always re...

See all answers

What needs improvement with Dell PowerProtect DD (Data Domain)?

In my opinion, for the version I am using of Dell PowerProtect Data Domain, I am not sure if there is another version that will have the functionality I will discuss. I need them to add the air-gap...

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 backup of your data. You know that replication and backups are different, right? Re...

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 actively (maybe just as much as data replication, to be honest). We absolutely ...

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 the copies you don't need? Like it's unavoidable for some of the copies to get da...

See all answers

Comparisons

HPE StoreOnce vs Dell PowerProtect Data Domain

Compared 28% of the time

Rubrik vs Dell PowerProtect Data Domain

Compared 6% of the time

ExaGrid EX vs Dell PowerProtect Data Domain

Compared 4% of the time

Dell PowerProtect Data Manager vs Dell PowerProtect Data Domain

Compared 4% of the time

Veeam Data Platform vs Dell PowerProtect Data Domain

Compared 4% of the time

More Dell PowerProtect Data Domain Competitors

Hitachi Universal Replicator vs QoreStor

Compared 4% 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

CTERA Enterprise File Services Platform vs QoreStor

Compared 3% of the time

More QoreStor Competitors

Product Reports

Buyer's Guide

Dell PowerProtect Data Domain

May 2026

Download Dell PowerProtect Data Domain product report

Buyer's Guide

QoreStor

April 2026

Download QoreStor product report

Also Known As

DataDomain, Dell EMC Data Domain, PowerProtect Data Domain

QoreStor

Overview

Dell PowerProtect Data Domain is the leading backup appliance built for powerful cyber resilience and seamless integration into on-premises environments. It supports both traditional and modern workloads, simplifying operations while reducing risks and costs.

Dell PowerProtect Data Domain offers scalable storage capabilities that integrate smoothly with backup systems. Its deduplication and compression technologies enhance storage efficiency by significantly reducing data volumes. Users appreciate its secure data protection, excellent deduplication and compression, efficient data replication, and the DD Boost protocol for faster data transfer. However, feedback suggests improvements are needed in areas like complex VTL tape addition, high pricing, and challenging cloud integration. The implementation may benefit from boosted processing power and enhanced ransomware protection.

What are the key features of Dell PowerProtect Data Domain?

Deduplication and Compression: Significantly reduces data volumes, optimizing storage usage.
Efficient Data Replication: Enhances data protection by securely transferring data across locations.
DD Boost Protocol: Promotes faster data transfer, streamlining backup processes.
Scalable Storage: Adapts to varying data capacities, ensuring growth accommodation.
Secure Data Protection: Safeguards data with robust encryption and protection features.

What benefits should be expected from Dell PowerProtect Data Domain?

Space and Cost Savings: Achieves reductions in data footprint, lowering storage expenses.
Reliable Backup and Recovery: Provides consistent and fast data backup and restoration capabilities.
Seamless Integration: Operates smoothly with existing backup software and environments.
Data Security: Offers comprehensive data protection to ensure business continuity.

Dell PowerProtect Data Domain is widely employed across various sectors like banking, finance, and government for its backup, deduplication, and archiving functions. Organizations utilize it with software like Veeam and NetWorker to optimize bandwidth, manage large data capacities, and deliver secure, reliable backup features, supporting both on-premises and hybrid deployments.

Dell Technologies

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

The US Army, City of Houston, Lloyds TSB, TiVo, Teck, Ingram Entertainment, The New York Mets

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

Buyer's Guide

Dell PowerProtect Data Domain vs. QoreStor

April 2026

Free Report: Dell PowerProtect Data Domain vs. QoreStor

Find out what your peers are saying about Dell PowerProtect Data Domain vs. QoreStor and other solutions. Updated: April 2026.

DOWNLOAD NOW

894,668 professionals have used our research since 2012.

See our Dell PowerProtect Data Domain vs. QoreStor report.

See our list of best Disk Based Backup Systems vendors.

We monitor all Disk Based Backup Systems 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.