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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
108
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

"This solution has a feature called Domain Boost, which allows for source deduplication and compression."
"It's deduplication and faster recovery that are the key features."
"The backup is very secure, the deduplication using EMC is very good, we are able to make systems and handle random cloning, and EMC is a very stable solution for making backups."
"9900 has around 1.5 petabits of capacity in a single rack, and that's huge."
"Just keep going with the solution as it performs; it meets our expectations well."
"I have been using Dell PowerProtect Data Domain for three years and a half, and it has delivered excellent reliability and deduplication efficiency and backup performance."
"Dell is more stable than any other device."
"I like the different features. We work closely with Dell on different products and features, which is why we use them all."
"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

"We are using technical support from the producers, and it is not good. I'm not happy with the technical support."
"The solution's cost, scalability, and licensing model could be improved."
"Initial capital expenditure can easily run into six to seven figures, and the professional services setup cost surprises often stem from mandatory deployment services."
"It can probably have integration with other OEMs. It should also have more features for ransomware protection."
"Its management can be improved."
"The model 3330 may need improvement."
"There is an inconsistency in support quality for Dell PowerProtect DD"
"The licensing is not cost-effective, and the pricing could be better."
"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 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 solution is expensive. However, if you pay less you receive less, it is cost-effective."
"The yearly subscription is very affordable for our customers, but the price could be a little cheaper overall."
"The price of the backup appliance is slightly expensive. Compared to other vendors, the pricing will be slightly higher."
"In Naira it was twenty-five or twenty-seven million (approximately $75,000 USD) for the implementation and maintenance cost for three years."
"The pricing is cost-effective for the solution"
"The cheaper device costs around $70,000."
"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."
"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 Business41
Midsize Enterprise27
Large Enterprise49
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.
920,336 professionals have used our research since 2012.