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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

"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."
"Dell PowerProtect Data Domain is more efficient than NetBackup for our backup needs."
"We never go without Data Domain if we are talking about backup solutions; we always go with Data Domain, as it's a very reliable and consistent product and there's no match with any other product."
"Fantastic product that really is the ‘Swiss Army Knife’ of backup/archive/bulk storage products, so usable and can save significant $ and can save many headaches with data management, the more you store on it the better De-duplication and greater ROI you get."
"The technology has been very useful. There are lots of features on offer."
"The most valuable features of Dell EMC PowerProtect DD are the duplication security and uptime."
"Dell PowerProtect Data Domain has positively impacted my organization by achieving remarkable outcomes, including storage efficiency of 10:1 to 50:1 deduplication that drastically reduces physical disk purchases."
"The compression aspect of the solution is great."
"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

"In general, for improvement purposes, I can say that the features are not easy to understand to customers with Dell PowerProtect Data Domain."
"Maybe the price is an area for improvement in Dell PowerProtect Data Domain."
"The aspect we do not enjoy the most about Dell PowerProtect Data Domain is the staging configuration."
"First-time integrations are difficult in NetWorker. NetWorker software needs to be simplified. It's very complex."
"Data Domain lacks compatibility with fiber channels and tapes. We can't use it with a tape library."
"The pricing should be adjusted."
"They're scalable."
"Dell PowerProtect DD should come out with its own system so we do not have to use Data Domain. For example, something similar to what Symantec has done."
"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 cost is expensive."
"Becoming more expensive."
"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."
"In Naira it was twenty-five or twenty-seven million (approximately $75,000 USD) for the implementation and maintenance cost for three years."
"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 cheaper device costs around $70,000."
"Pricing is related to size. A lower range solution might be about $33,000. My customers use higher range versions with a price of around $100,000. That's the price for both the hardware and software."
"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
9%
Computer Software Company
8%
Outsourcing Company
7%
Financial Services Firm
15%
Computer Software Company
9%
Manufacturing Company
8%
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)?
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...
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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.
908,858 professionals have used our research since 2012.