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Dell PowerProtect Data Domain vs Quantum DXi Series comparison

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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
110
Ranking in other categories
Disk Based Backup Systems (1st)
Quantum DXi Series
Ranking in Deduplication Software
10th
Average Rating
9.6
Reviews Sentiment
7.7
Number of Reviews
2
Ranking in other categories
Backup and Recovery (59th)
 

Mindshare comparison

As of November 2026, in the Deduplication Software category, the mindshare of Dell PowerProtect Data Domain is 21.2%, down from 26.6% compared to the previous year. The mindshare of Quantum DXi Series is 4.5%, up from 4.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Deduplication Software Mindshare Distribution
ProductMindshare (%)
Dell PowerProtect Data Domain21.2%
Quantum DXi Series4.5%
Other74.3%
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 like Data Domain as a protocol for data backup."
"This solution has a feature called Domain Boost, which allows for source deduplication and compression."
"The data application compression is great."
"Dell PowerProtect DD is a stable solution."
"It is stable. I would rate the stability of the solution a nine out of ten."
"The technology has been very useful. There are lots of features on offer."
"In summary, this is a good backup product and we are happy with the performance."
"The most valuable features of Dell PowerProtect DD are reduplication and compression. It provides a lot of data savings for backups. Additionally, the Dell PowerProtect DD solution offers a bundled backup software and storage option. If desired, users can also connect to cloud technology to create an additional copy of their data in the cloud. This solution supports synchronization with various cloud vendors, including Azure and AWS."
"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

"They need to make migration easier."
"Local support is necessary because while some aspects are well-handled, others require attention."
"The improvement needed for Dell PowerProtect Data Domain is definitely in the multi-tenancy capability."
"One of the areas we are looking at is interconnects for Dell PowerProtect Data Domain."
"We have had deduplication and replication issues. When we used another backup software we noticed that it didn't have the same issues."
"I would appreciate improvements primarily in the PPDM backup software because I still feel it's lacking the features of a proper backup solution and is a bit simplistic."
"From a pricing perspective, it is quite high and very costly compared to other storage or backup solutions."
"Dell EMC PowerProtect DD (Data Domain) is not a product that's easy to install by customers."
"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

"There are many options in the pricing structure which can cause some confusion and necessitate the purchase of additional licensing."
"If we do not move to the cloud solution and stay with our on-premise version we will miss some new features."
"The pricing is cost-effective for the solution"
"We usually buy products at the end year, and the license is included."
"The cheaper device costs around $70,000."
"The solution is expensive. However, if you pay less you receive less, it is cost-effective."
"Users have to pay a capacity-based licensing fee for the solution."
"The product is expensive."
"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%
Outsourcing Company
10%
Manufacturing Company
9%
Comms Service Provider
7%
Financial Services Firm
13%
Comms Service Provider
9%
Manufacturing Company
9%
Retailer
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business42
Midsize Enterprise27
Large Enterprise50
No data available
 

Questions from the Community

What is your primary use case for Dell EMC PowerProtect DD (Data Domain)?
Dell PowerProtect Data Domain is primarily used in my organization for disk backups. We use it for production systems so that we have a backup and can make use of other devices where the VTL handle...
What is your experience regarding pricing and costs for Dell PowerProtect DD (Data Domain)?
I have not had access to the costs of Dell PowerProtect Data Domain, so I could not tell you how my experience has been with the licensing, installation, and pricing costs.
What needs improvement with Dell PowerProtect DD (Data Domain)?
I think Dell PowerProtect Data Domain could be improved in terms of the integration with VTL, as I would like it to be a bit more accessible.
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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: November 2026.
921,338 professionals have used our research since 2012.