Dell PowerProtect Data Domain vs QoreStor comparison

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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 #6 with an average rating of 7.0. Dell Technologies holds a 33.1% mindshare in DBBS, compared to Quest Software’s 4.8% mindshare. Additionally, 92% 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 109 Dell PowerProtect Data Domain reviews

19,357 Views
7,549 Comparison Views

92% willing to recommend

QoreStor

Read 10 QoreStor reviews

7,618 Views
609 Comparison Views

100% willing to recommend

Dell PowerProtect Data Domain

QoreStor

Comparison Buyer's Guide

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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: November 2026).

Buyer's Guide

Dell PowerProtect Data Domain vs. QoreStor

November 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

Dell PowerProtect Data Domain

Ranking in Disk Based Backup Systems

1st

Average Rating

8.6

Reviews Sentiment

6.6

Number of Reviews

109

Ranking in other categories

Deduplication Software (1st)

QoreStor

Ranking in Disk Based Backup Systems

6th

Average Rating

8.0

Reviews Sentiment

7.2

Number of Reviews

Ranking in other categories

Backup and Recovery (48th), Data Replication (10th), Storage Software (4th), Disaster Recovery (DR) Software (24th), Software Defined Storage (SDS) (18th), Copy Data Management (6th), File and Object Storage (22nd)

Mindshare comparison

As of November 2026, in the Disk Based Backup Systems category, the mindshare of Dell PowerProtect Data Domain is 33.1%, down from 39.4% compared to the previous year. The mindshare of QoreStor is 4.8%, up from 1.3% 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	33.1%
QoreStor	4.8%
Other	62.1%

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.

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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.

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

"It is very fast as compared to the other competitors; its simplicity and bit rate are also valuable, and it takes less time if we compare it with the old solution that we have."

"The most valuable feature of Dell PowerProtect DD (Data Domain) is its deduplication capability."

"Deduplication and compression are the best features of the solution, which are popular and very effective."

"With the increasing amount of data handled every year, the money we save on tapes, plus the speed that the DD allows backups to be done and having instant restores, makes this product the best investment a backup environment can add."

"Dell PowerProtect Data Domain is worth buying and provides value for money because it delivers the highest deduplication and compression in the backup storage industry."

"One of the most valuable features is that it looks for the deduplication, which can reduce the amount of the data."

"Dell PowerProtect Data Domain is more efficient than NetBackup for our backup needs."

"The most valuable features of Dell EMC PowerProtect DD are the duplication security and uptime."

More Dell PowerProtect Data Domain pros

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

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

"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."

"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."

"The extreme compression of data is a big thing for us. We were looking for an online backup solution, and QoreStor is very good in terms of data compression. It helps us minimize the required storage in the Blob Storage environment."

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

"Quest QoreStor definitely saved us money."

More QoreStor pros

Cons

"Technical support from Dell can be better; it is essential to align the level of support with customer requirements."

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

"Dell PowerProtect Data Domain can be improved by enhancing the maximum allowed capacity."

"Integration with cybersecurity measures can be enhanced, particularly with ransomware protection."

"We are not able to deal directly with the OEM we have to go to their partners in Nigeria."

"I have not really noticed any drawbacks or downsides other than the price."

"Initial capital expenditure can easily run into six to seven figures, and the professional services setup cost surprises often stem from mandatory deployment services."

"I would appreciate improvements primarily in the PPDM backup software because I still feel it's lacking the features of a proper backup solution and is a bit simplistic."

More Dell PowerProtect Data Domain 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."

"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."

"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. 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 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."

"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."

"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."

More QoreStor cons

Pricing and Cost Advice

"Its price is reasonable."

"If we do not move to the cloud solution and stay with our on-premise version we will miss some new features."

"In Naira it was twenty-five or twenty-seven million (approximately $75,000 USD) for the implementation and maintenance cost for three years."

"The price of the solution and support for Dell PowerProtect DD is expensive. We have customers that cannot upgrade to a newer version of the solution because the support is too expensive."

"The price of Dell EMC PowerProtect DD could improve, it is expensive."

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

"The cost is expensive."

"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."

More Dell PowerProtect Data Domain pricing and cost advice

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

"The pricing is good. It is competitive for a managed services provider. I like the ability to pay by the terabyte, allowing for an incremental cost that we and our customers can afford, so the solution grows with the customer."

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

"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."

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Top Industries

By visitors reading reviews

Financial Services Firm

10%

Outsourcing Company

10%

Manufacturing Company

Comms Service Provider

14%

Manufacturing Company

12%

Financial Services Firm

11%

Construction Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	41
Midsize Enterprise	27
Large Enterprise	50

By reviewers
Company Size	Count
Small Business	7
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 primarily used in my organization for disk backups. We use it for production systems so that we have a backup and can make use of other devices where the VTL handle...

See all answers

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

I have not had access to the costs of Dell PowerProtect Data Domain, so I could not tell you how my experience has been with the licensing, installation, and pricing costs.

See all answers

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

I think Dell PowerProtect Data Domain could be improved in terms of the integration with VTL, as I would like it to be a bit more accessible.

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...

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Veritas NetBackup Appliance vs Dell PowerProtect Data Domain

Compared 4% of the time

NetApp FAS Series vs Dell PowerProtect Data Domain

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Compared 3% of the time

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Compared 3% of the time

DataCore SANsymphony vs QoreStor

Compared 3% of the time

Dell Avamar vs QoreStor

Compared 3% of the time

HPE StoreOnce vs QoreStor

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Product Reports

Buyer's Guide

Dell PowerProtect Data Domain

November 2026

Download Dell PowerProtect Data Domain product report

Buyer's Guide

QoreStor

October 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 offers low maintenance and flexibility, integrating with diverse backup software and hardware. It highlights data deduplication, reducing storage significantly, with compression benefits. Compatible with Linux, it enhances security and supports replication and archiving to the cloud.

QoreStor is a versatile data management tool, valued for its adaptability across platforms, including virtual machines. Users leverage its features for data deduplication, compression, and efficient storage management, ensuring cost-effective offsite recovery options. Integrating smoothly with applications like Veeam, NetVault, and vRanger, QoreStor provides reliable storage solutions that are affordably priced. While installation and backup software integration could be smoother, and the management interface more user-friendly, QoreStor remains a competitive option with strong security benefits and cloud capabilities.

What are QoreStor's key features?

Data Deduplication: Significantly reduces storage requirements.
Compression: Optimizes storage efficiency.
Cloud Archiving: Facilitates easy replication and archiving to cloud environments.
Linux Compatibility: Enhances security through robust integration.
Platform Flexibility: Operates across virtual and diverse environments.

What benefits and ROI to expect?

Cost Reduction: Efficient storage management reduces expenses.
Enhanced Security: Linux compatibility ensures higher security levels.
Storage Efficiency: Deduplication and compression reduce storage needs.
Cloud Flexibility: Encourages efficient backup and recovery through cloud options.
Scalability: Easily adapts to growing needs with platform flexibility.

In industries needing reliable data management, QoreStor serves as a primary backup and replication resource. Companies use it to enhance data deduplication and storage management, integrating it with tools like Veeam. This facilitates both onsite and cost-effective offsite data operations, promoting seamless cloud interactions.

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

November 2026

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