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Dell PowerProtect Data Domain vs Quantum DXi Series comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 8, 2026

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
6.6
Number of Reviews
102
Ranking in other categories
Disk Based Backup Systems (1st)
Quantum DXi Series
Ranking in Deduplication Software
11th
Average Rating
9.6
Reviews Sentiment
7.7
Number of Reviews
2
Ranking in other categories
Backup and Recovery (60th)
 

Mindshare comparison

As of August 2026, in the Deduplication Software category, the mindshare of Dell PowerProtect Data Domain is 20.3%, down from 28.1% compared to the previous year. The mindshare of Quantum DXi Series is 4.7%, up from 3.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Deduplication Software Mindshare Distribution
ProductMindshare (%)
Dell PowerProtect Data Domain20.3%
Quantum DXi Series4.7%
Other75.0%
Deduplication Software
 

Featured Reviews

Branko Cirovic - PeerSpot reviewer
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.
reviewer2301564 - PeerSpot reviewer
Expert Backup at a tech services company with 201-500 employees
A virtual deduplication backup appliance that protects physical and virtual data across remote sites, the datacenter and cloud deployments
Given its ease of use and management, I believe there are no specific caveats that users need to be aware of during the setup of DXRIS for backups. The process was straightforward, and I did not encounter any challenges or issues. As for a rating on a scale of one to ten, with one being the worst and ten being the best, I would rate the Quantum DXI Series a nine. My deduction is primarily influenced by personal preferences, particularly regarding the user interface and it is a highly commendable system, I would rate it a solid nine out of ten.

Quotes from Members

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

Pros

"I feel the solution works fine for us."
"It securely protects data against threats like Trojans."
"It's very easy to use Data Domain once it's been set up, and the interface is also user-friendly."
"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."
"Depending on the customer's needs, Dell can fit into all environments."
"This solution from Dell EMC is the number one backup appliance."
"I advise those considering Dell PowerProtect Data Domain to try it out, as there are various products on the market, but Dell PowerProtect Data Domain is easy to use, easy to install, and integrates well with the customer's environment, boasting spectacular backup and restore capabilities."
"The solution is stable and the performance is good, there are no bugs or glitches, and it doesn't crash or freeze."
"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

"The price could be a little cheaper than it is now."
"Each solution has its pros and cons regarding Dell PowerProtect Data Domain. Regarding the cons, it has high licensing and expansion costs."
"If we lose the admin password, Dell always asks for separate charges."
"DDBoost function is not compatible with IBM TSM."
"The solution could adjust the size of the discs."
"The usage of this solution is a bit difficult to develop processes, and it takes a long time to market permits."
"The price is also a disadvantage. Price is a disadvantage with the PowerProtect as it needs to be cheaper."
"I would like to see integration with public cloud."
"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

"On a scale where one represents high price, and ten represents low price, I rate the solution a five, which means that the solution is of medium pricing."
"The price may be a bit higher than other products in the market, but you will receive ten out of ten support with next-business-day delivery on parts' availability."
"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 price of Dell EMC PowerProtect DD could improve, it is expensive."
"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 cost is expensive."
"The price is really high compared to other vendors. The licensing cost is huge. Normal, mid-tier companies or small-scale companies wouldn't be able to afford it easily."
"The cheaper device costs around $70,000."
"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
Financial Services Firm
10%
Manufacturing Company
10%
Computer Software Company
8%
Outsourcing Company
7%
Financial Services Firm
15%
Computer Software Company
9%
Manufacturing Company
9%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business41
Midsize Enterprise26
Large Enterprise44
No data available
 

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 as a data backup target.
What is your experience regarding pricing and costs for Dell PowerProtect DD (Data Domain)?
Pricing, setup cost, and licensing are not my areas of expertise, as I mainly focus on implementation engineering.
What needs improvement with Dell PowerProtect DD (Data Domain)?
To improve Dell PowerProtect Data Domain, I would suggest making it cheaper. I would like to see the ability to use more back end data ports as a new feature.
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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: August 2026.
908,344 professionals have used our research since 2012.