No more typing reviews! Try our Samantha, our new voice AI agent.

Dell PowerProtect Data Domain vs Quantum DXi Series comparison

Why PeerSpot?
 

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
103
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 September 2026, in the Deduplication Software category, the mindshare of Dell PowerProtect Data Domain is 20.5%, down from 27.4% compared to the previous year. The mindshare of Quantum DXi Series is 4.6%, 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 Domain20.5%
Quantum DXi Series4.6%
Other74.9%
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

"The solution is very scalable."
"We haven't had any difficulties with the solution while testing it."
"The deduplication feature is the most valuable part of the solution."
"When utilizing Dell PowerProtect DD for backup systems, Data Domain offers fast performance with low latency, providing high throughput for quicker backups compared to other vendors."
"It's a stable, reliable product; it doesn't crash or freeze, there are no bugs or glitches, and the performance is good."
"My favorite feature on Dell PowerProtect Data Domain is the deduplication capability, which is a particularly good feature to have."
"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."
"This solution from Dell EMC is the number one backup appliance."
"I am impressed with the tool's technical alliance with Veeam and Veritas."
"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."
 

Cons

"There is an inconsistency in support quality for Dell PowerProtect DD"
"I would like them to improve on the short backup window as it would make my organization even more efficient."
"PowerProtect DD should improve the hypervisor support on the DD system."
"It could be more secure."
"The price is quite high; this product is not considered cheap."
"We have some problems with backing up on the Power Platform. PowerServer is an IBM product, and it forces us to back up over LAN, which is not suitable for us."
"Data Domain lacks compatibility with fiber channels and tapes. We can't use it with a tape library."
"The pricing should be adjusted."
"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."
"The product needs to improve performance while scaling out. It also needs to improve stability."
 

Pricing and Cost Advice

"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."
"It is expensive, but the performance and deduplication cover for the cost."
"The pricing is cost-effective for the solution"
"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."
"We usually buy products at the end year, and the license is included."
"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."
"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."
report
Use our free recommendation engine to learn which Deduplication Software solutions are best for your needs.
911,602 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
10%
Manufacturing Company
9%
Computer Software Company
8%
Outsourcing Company
8%
Financial Services Firm
15%
Computer Software Company
9%
Manufacturing Company
8%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business40
Midsize Enterprise27
Large Enterprise45
No data available
 

Questions from the Community

What is your primary use case for Dell EMC PowerProtect DD (Data Domain)?
I use Dell PowerProtect Data Domain for backup storage and target storage backup.
What needs improvement with Dell PowerProtect DD (Data Domain)?
The only improvement I see for Dell PowerProtect Data Domain is pricing. The issue I experienced is primarily with support rather than the product itself. The product is rugged and runs smoothly, b...
Ask a question
Earn 20 points
 

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.
911,602 professionals have used our research since 2012.