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Dell PowerProtect Data Domain vs Quantum DXi Series comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 5, 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

Dell PowerProtect Data Domain
Ranking in Deduplication Software
1st
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
76
Ranking in other categories
Disk Based Backup Systems (1st)
Quantum DXi Series
Ranking in Deduplication Software
9th
Average Rating
9.6
Reviews Sentiment
7.7
Number of Reviews
2
Ranking in other categories
Backup and Recovery (34th)
 

Mindshare comparison

As of November 2025, in the Deduplication Software category, the mindshare of Dell PowerProtect Data Domain is 26.6%, down from 29.0% compared to the previous year. The mindshare of Quantum DXi Series is 4.2%, up from 3.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Deduplication Software Market Share Distribution
ProductMarket Share (%)
Dell PowerProtect DD (Data Domain)26.6%
Quantum DXi Series4.2%
Other69.2%
Deduplication Software
 

Featured Reviews

Faisal_Zia - PeerSpot reviewer
Offers efficient data management with robust features and reliable performance
Dell PowerProtect DD (Data Domain) can be improved in terms of price. While Dell is providing a proper device, other solutions, such as Symantec, can replicate their data through any NAS storage. Although their deduplication and compression might not be as effective, they can still accomplish the task. Medium-level and SME-level businesses can easily utilize this feature, but Dell PowerProtect DD (Data Domain) is a relatively expensive solution to propose to customers.
PascalSebat - PeerSpot reviewer
A scalable solution with Veeam and Vertias alliance
I am impressed with the tool's technical alliance with Veeam and Veritas.  The product needs to improve performance while scaling out. It also needs to improve stability.  I have been using the product since seven years.  I would rate the product's stability a nine out of ten. I would rate the…

Quotes from Members

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

Pros

"By using Data Domain, we get the advantage of data deduplication, reducing data size."
"The most valuable features of the solution are recovery point, compression, and deduplication."
"We have never had any issues with Data Domain. It has been stable."
"Dell is more stable than any other device."
"The solution allows us to take a huge number of backups, and the footprint is quite small."
"We have found the product to be scalable."
"This is a superior and reliable backup system that can handle large capacities with little management."
"The integration of Dell PowerProtect DD (Data Domain) with leading backup applications within the infrastructure is very good."
"While the challenges posed by the difficulties were significant, they prompted the replacement of problematic components, resulting in the resolution of issues. Importantly, there were no substantial ongoing concerns. Regarding the overall performance, it has been consistently excellent."
"I am impressed with the tool's technical alliance with Veeam and Veritas."
 

Cons

"There is an inconsistency in support quality for Dell PowerProtect DD"
"The Data Domain solution appliance is quite expensive. It is on the higher side, but technically or functionally, there is no issue."
"Dell PowerProtect DD (Data Domain) is a relatively expensive solution to propose to customers."
"The pricing could be lower."
"The tool's DD Boost is expensive."
"PowerProtect DD should improve the hypervisor support on the DD system."
"The licensing model was the biggest concern for our company, but the poor support after the initial implementation is of equal concern."
"Improvement is needed in terms of telemetry and high availability as the high availability feature is only present in the higher models of Dell PowerProtect DD (Data Domain)."
"The product needs to improve performance while scaling out. It also needs to improve stability."
"Perhaps the most notable area for enhancement lies in the web interface for management. The current limitations in LDAP editing capabilities are not addressed in the UI, and I haven't observed any recent updates. It's possible that the new version of the DXI service incorporates improvements in the GUI, but I cannot confirm. While there is room for improvement in the current GUI, it remains a relatively minor issue. Overall, the system is comprehensive, covering aspects such as reports on latency and networking, leaving little room for additional enhancements in those areas."
 

Pricing and Cost Advice

"The solution is expensive. However, if you pay less you receive less, it is cost-effective."
"The price is on the high side."
"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 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."
"This is one of the more expensive backup solutions on the market."
"The product is expensive."
"The approximate license cost for Dell PowerProtect DD (Data Domain) is around 5,00,000."
"I do not oversee this aspect, as pricing is contingent on factors such as volume, technical specifications, and the desired features. Consequently, I lack information on the pricing details and structure."
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Manufacturing Company
10%
Financial Services Firm
10%
Government
7%
Financial Services Firm
28%
Computer Software Company
12%
Manufacturing Company
8%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise21
Large Enterprise32
No data available
 

Questions from the Community

What is your primary use case for Dell EMC PowerProtect DD (Data Domain)?
Dell PowerProtect DD (Data Domain) is an integrated backup appliance-based solution, and our installed base in Pakistan is substantial. We possess high expertise in both pre-sales and post-sales ac...
What do you like most about Dell PowerProtect DD (Data Domain)?
The product, a disk backup solution, improves our data application tasks. We used tape libraries with Dev drives in legacy architectures, resulting in slow backups compared to modern drives like NV...
What is your experience regarding pricing and costs for Dell PowerProtect DD (Data Domain)?
Dell PowerProtect DD (Data Domain)'s licensing cost was excellent in 2023, but after 2023, the operating environment licensing cost is huge. It is almost four times the earlier price.
What do you like most about Quantum DXi Series?
While the challenges posed by the difficulties were significant, they prompted the replacement of problematic components, resulting in the resolution of issues. Importantly, there were no substanti...
What needs improvement with Quantum DXi Series?
Perhaps the most notable area for enhancement lies in the web interface for management. The current limitations in LDAP editing capabilities are not addressed in the UI, and I haven't observed any ...
What is your experience regarding pricing and costs for Quantum DXi Series?
I do not oversee this aspect, as pricing is contingent on factors such as volume, technical specifications, and the desired features. Consequently, I lack information on the pricing details and str...
 

Also Known As

DataDomain, Dell EMC Data Domain, PowerProtect Data Domain
DXi Series, Quantum DX
 

Overview

 

Sample Customers

The US Army, City of Houston, Lloyds TSB, TiVo, Teck, Ingram Entertainment, The New York Mets
Nihon Unisys, Nikoyo China
Find out what your peers are saying about Dell PowerProtect Data Domain vs. Quantum DXi Series and other solutions. Updated: November 2025.
873,003 professionals have used our research since 2012.