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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
99
Ranking in other categories
Disk Based Backup Systems (1st)
Quantum DXi Series
Ranking in Deduplication Software
12th
Average Rating
9.6
Reviews Sentiment
7.7
Number of Reviews
2
Ranking in other categories
Backup and Recovery (61st)
 

Mindshare comparison

As of June 2026, in the Deduplication Software category, the mindshare of Dell PowerProtect Data Domain is 20.9%, down from 28.3% compared to the previous year. The mindshare of Quantum DXi Series is 4.8%, up from 3.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Deduplication Software Mindshare Distribution
ProductMindshare (%)
Dell PowerProtect Data Domain20.9%
Quantum DXi Series4.8%
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

"The features that I have found most valuable with Dell EMC PowerProtect DD are its deduplication feature and its DD Boost protocol for fast transfer, which is amazing."
"Deduplication and compression are the best features of the solution, which are popular and very effective."
"Stable and scalable suite of solutions with deduplication, apart from data protection, storage, and backup."
"Good starting capacity and scalability."
"The feature that I have found most useful is its data duplication."
"It is a stable solution."
"The dedup and data compression actually benefit our floor space in the data center, and we are able to reduce our backup storage, which used to be a legacy large footprint, into something more concise."
"The most valuable features of PowerProtect DD are the immutable storage and the AI scanning."
"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

"There is a challenge when it comes to data recovery; the recovery window can exceed four to eight hours if you're dealing with backups older than five or ten years."
"The last downtime for upgrading the model 9410 took a long time, approximately two hours, which could be bad for production environments."
"Without a service account manager after the initial deployment, the support is poor."
"I would like to see better integration and support for backing up to cloud providers such as Alibaba Cloud."
"Integration with cybersecurity measures can be enhanced, particularly with ransomware protection."
"First-time integrations are difficult in NetWorker. NetWorker software needs to be simplified. It's very complex."
"We would like to see the price of this solution brought down to be comparable with similar products currently on the market."
"One improvement to the solution would be in the integration with backup software. They still have hardware different from the software."
"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

"Dell PowerProtect DD's pricing is expensive, and there is no option for perpetual licensing."
"Becoming more expensive."
"The solution is expensive. However, if you pay less you receive less, it is cost-effective."
"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."
"We usually buy products at the end year, and the license is included."
"If we do not move to the cloud solution and stay with our on-premise version we will miss some new features."
"Its price is reasonable."
"The price of the backup appliance is slightly expensive. Compared to other vendors, the pricing will be slightly higher."
"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
Manufacturing Company
11%
Financial Services Firm
10%
Computer Software Company
9%
Government
6%
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 Business39
Midsize Enterprise25
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 to take backups in the Data Domain.
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)?
In terms of areas for improvement, I have not observed any significant issues with the product. The product is very good, and there are multiple options that I can use to utilize it in a perfect ma...
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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: June 2026.
899,324 professionals have used our research since 2012.