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, 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 98 Dell PowerProtect Data Domain reviews

13,559 Views
4,610 Comparison Views

91% willing to recommend

QoreStor

Read 10 QoreStor reviews

4,102 Views
287 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: April 2026).

Buyer's Guide

Dell PowerProtect Data Domain vs. QoreStor

April 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

Ranking in other categories

Deduplication Software (1st)

QoreStor

Ranking in Disk Based Backup Systems

8th

Average Rating

8.0

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.

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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

"Just keep going with the solution as it performs; it meets our expectations well."

"The most valuable feature, beyond simply backing up our servers, is the data compression capability."

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

"Dell PowerProtect DD is a stable solution."

"I like the different features. We work closely with Dell on different products and features, which is why we use them all."

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

"It's very competitive in terms of price and technology."

"The compression aspect of the solution is great."

More Dell PowerProtect Data Domain pros

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

"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 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."

"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."

"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."

"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."

More QoreStor pros

Cons

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

"DD doesn't have Intel's air gap technology."

"Dell PowerProtect DD should come out with its own system so we do not have to use Data Domain. For example, something similar to what Symantec has done."

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

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

"They still have hardware different from the software."

"The only problem is that it's more expensive than any other vendors available in the market."

"The price is quite high; this product is not considered cheap."

More Dell PowerProtect Data Domain cons

"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."

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

"They need to increase their maximum capacity."

"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."

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

"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."

"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."

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."

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

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

"The product is expensive."

"The price of the backup appliance is slightly expensive. Compared to other vendors, the pricing will be slightly higher."

"It could be more competitively priced. Its licensing was for five years. Obviously, the support will get renewed at some stage, but that's it."

"Dell PowerProtect DD's pricing is expensive, and there is no option for perpetual licensing."

"Its price is reasonable."

More Dell PowerProtect Data Domain pricing and cost advice

"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."

"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."

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Top Industries

By visitors reading reviews

Financial Services Firm

10%

Manufacturing Company

10%

Computer Software Company

Government

Manufacturing Company

11%

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	39
Midsize Enterprise	25
Large Enterprise	44

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)?

I use Dell PowerProtect Data Domain to take backups in the Data Domain.

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 terms of areas for improvement, I have not observed any significant issues with the product. The product is very good, and there are multiple options that I can use to utilize it in a perfect ma...

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 28% of the time

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Compared 6% of the time

Dell PowerProtect Data Manager vs Dell PowerProtect Data Domain

Compared 5% of the time

ExaGrid EX 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

May 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

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