Dell PowerProtect Data Domain vs QoreStor comparison

Why PeerSpot?

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 9.0, while Quest Software is ranked #7 with an average rating of 7.0. Dell Technologies holds a 33.1% mindshare in DBBS, compared to Quest Software’s 5.1% mindshare. Additionally, 91% 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 106 Dell PowerProtect Data Domain reviews

16,917 Views
6,259 Comparison Views

91% willing to recommend

QoreStor

Read 10 QoreStor reviews

6,375 Views
510 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: September 2026).

Buyer's Guide

Dell PowerProtect Data Domain vs. QoreStor

September 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

106

Ranking in other categories

Deduplication Software (1st)

QoreStor

Ranking in Disk Based Backup Systems

7th

Average Rating

8.0

Reviews Sentiment

7.2

Number of Reviews

Ranking in other categories

Backup and Recovery (50th), Data Replication (8th), Storage Software (4th), Disaster Recovery (DR) Software (25th), Software Defined Storage (SDS) (18th), Copy Data Management (6th), File and Object Storage (22nd)

Mindshare comparison

As of September 2026, in the Disk Based Backup Systems category, the mindshare of Dell PowerProtect Data Domain is 33.1%, down from 39.8% compared to the previous year. The mindshare of QoreStor is 5.1%, up from 1.2% 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	5.1%
Other	61.8%

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.

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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 solution is stable, very reliable, and designed for what they call 99.999% uptime, which is less than an hour a year of downtime."

"It's very competitive in terms of the price and technology. Also, the development team continuously makes updates. The data reduction feature is very useful."

"This solution from Dell EMC is the number one backup appliance."

"I find the data to be most valuable."

"My advice to other organizations considering Dell PowerProtect Data Domain is that if you are looking for a cost-effective solution that provides a very good compression and deduplication ratio, then certainly you should implement Dell PowerProtect Data Domain as it integrates well with any backup technologies."

"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."

"It should provide everything that an enterprise needs."

"We have found the product to be scalable."

More Dell PowerProtect Data Domain pros

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

"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."

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

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

"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."

"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."

"Quest QoreStor definitely saved us money."

"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."

More QoreStor pros

Cons

"Installation and deployment for this product need improvement. These processes need to made easier. Currently, it's not an easy installation for customers. This product needs to be installed by professionals."

"PowerProtect DD should improve the hypervisor support on the DD system."

"The cost could be lower. Sometimes it's not very competitive."

"The price is on the high side."

"The price of the product is high."

"We are using technical support from the producers, and it is not good. I'm not happy with the technical support."

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

"Technical Support: Bad. The service left much to be desired, even with the proper support."

More Dell PowerProtect Data Domain cons

"The ransomware protection of QoreStor could use improvement."

"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 air gap feature is something I'd really like to see in QoreStor."

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

"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."

"In terms of improvement, we would like to have an Air Gap feature to prevent a virus from attaching to something. So that when we don't do a backup, we want the QoreStor to stay offline. It would be a nice feature to have."

"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."

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

More QoreStor cons

Pricing and Cost Advice

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

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

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

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

"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."

"Users have to pay a capacity-based licensing fee for the solution."

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

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."

"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."

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

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Top Industries

By visitors reading reviews

Financial Services Firm

10%

Outsourcing Company

Manufacturing Company

Computer Software Company

Manufacturing Company

14%

Comms Service Provider

11%

Financial Services Firm

10%

Construction Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	40
Midsize Enterprise	27
Large Enterprise	48

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)?

My main use case for Dell PowerProtect Data Domain is backup. We utilize it to back up all of our data from our credit card domain application.

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

My experience with pricing, setup cost, and licensing is adequate; Dell is not the cheapest, but it is also not the most expensive.

See all answers

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

To improve Dell PowerProtect Data Domain, I would suggest that we take a look at how we also store AI data as needed.

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

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Compared 27% of the time

Rubrik vs Dell PowerProtect Data Domain

Compared 6% of the time

ExaGrid EX vs Dell PowerProtect Data Domain

Compared 5% of the time

Veritas NetBackup Appliance vs Dell PowerProtect Data Domain

Compared 4% of the time

Dell Avamar vs Dell PowerProtect Data Domain

Compared 3% of the time

More Dell PowerProtect Data Domain Competitors

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

Dell Avamar vs QoreStor

Compared 3% of the time

More QoreStor Competitors

Product Reports

Buyer's Guide

Dell PowerProtect Data Domain

September 2026

Download Dell PowerProtect Data Domain product report

Buyer's Guide

QoreStor

September 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

September 2026

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