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Dell PowerProtect DD (Data Domain) vs HPE StoreOnce comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 20, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
7.6
Dell PowerProtect DD offers cost-effective, reliable backup solutions with data compression, deduplication, and improved backup speed and recovery time.
Sentiment score
7.2
HPE StoreOnce users benefit from reduced costs, faster data recovery, scalability, and often achieve ROI in under three years.
If we request the price for StoreOnce as a standalone product, it tends to be higher than when it is included in a larger solution where we can receive better discounts.
 

Customer Service

Sentiment score
7.3
Dell PowerProtect DD's customer service is praised for knowledgeable support and timely assistance, despite occasional regional quality variations.
Sentiment score
7.6
HPE StoreOnce's customer service is praised for responsiveness and expertise, though some suggest improved response times and complex query knowledge.
I have dedicated support from Dell for Vietnam, and they are responsive.
I have encountered an issue before with other brands that would not have occurred with Dell.
They respond within 24 hours of case submission, which is crucial for maintaining the solution.
When we open a case for support during installation or other matters, they are always timely and provide full support.
HPE's support is very good, proactive, and monitored through InfoSight.
 

Scalability Issues

Sentiment score
6.8
Dell PowerProtect DD scales effectively, supports petabyte storage, integrates with cloud, and suits various business sizes with minimal maintenance.
Sentiment score
7.4
HPE StoreOnce is scalable and integrates well, supporting large data demands, though cost can be a concern when expanding.
The scalability depends on the IT department's strategy.
The solution is scalable to higher models, both vertically and horizontally.
By keeping the increasing data in mind, we decided to go for Data Domain.
The ability of HPE StoreOnce to scale is strong when more sizing options are available.
The scalability of HPE StoreOnce is very good.
 

Stability Issues

Sentiment score
8.2
Dell PowerProtect DD is highly stable and reliable, outperforming competitors, with minor software update issues occasionally reported.
Sentiment score
7.7
HPE StoreOnce is highly stable, with resolved issues and excellent integration, earning high user ratings for reliability.
Dell is especially more stable in the enterprise product.
Dell PowerProtect DD (Data Domain) is stable in terms of software performance.
For the stability of HPE StoreOnce, based on customer feedback, I rate it highly as one of the most stable products in the backup and archiving line.
 

Room For Improvement

Dell PowerProtect DD needs improved security, integration, deduplication, licensing, and support, with enhanced features for backup and pricing.
HPE StoreOnce needs better deduplication, integration, and security alongside improved performance, user interface, support, and cost efficiency.
The high availability feature is only present in the higher models of Dell PowerProtect DD (Data Domain).
Medium-level and SME-level businesses can easily utilize this feature, but Dell PowerProtect DD (Data Domain) is a relatively expensive solution to propose to customers.
It is suitable for more customers since it is small, cost-effective, and a good start for any customer to know about Data Domain and DBS solutions.
If they reintroduce models with 48 terabytes, it would serve small and medium customers better since not everyone requires to back up large data sizes.
It is well-positioned on the radar, with a mature and stable solution.
While the solution does everything expected, it would be beneficial if AI could be integrated for optimization and monitoring.
 

Setup Cost

Dell PowerProtect DD is expensive, but valued for performance and reliability, with discounts often available for enterprise customers.
HPE StoreOnce pricing is competitive but seen as high with mixed satisfaction, influencing its perceived value against competitors.
The price for PowerProtect DD is not suitable for my customers. It is very high.
The backup solution cost is higher than the actual solution.
The pricing has become higher since July, and the license costs are more expensive compared to the past.
The solution is quite expensive, possibly rated around seven and a half on a scale of one to ten.
 

Valuable Features

Dell PowerProtect DD offers powerful deduplication, efficient storage, and seamless cloud integration for reliable, scalable data protection.
HPE StoreOnce excels in deduplication, improving storage efficiency, backup speeds, and integration, offering flexible, cost-effective data management.
The most valuable feature of Dell PowerProtect DD (Data Domain) is its deduplication capability.
The security features of this solution, such as encryption and role-based access control, are included, and ransomware protection is also incorporated.
Retention for data, deduplication, and replication between sites are valuable features.
If the actual size for backup data is 100 terabytes, using StoreOnce, it will be around less than 10% of the original size due to the 1 to 10 deduplication ratio.
The most effective features for data deduplication are maximizing storage capacity and minimizing expenditure.
The recovery is important.
 

Categories and Ranking

Dell PowerProtect DD (Data ...
Ranking in Deduplication Software
1st
Ranking in Disk Based Backup Systems
1st
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
75
Ranking in other categories
No ranking in other categories
HPE StoreOnce
Ranking in Deduplication Software
2nd
Ranking in Disk Based Backup Systems
2nd
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
108
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2025, in the Deduplication Software category, the mindshare of Dell PowerProtect DD (Data Domain) is 28.3%, down from 30.0% compared to the previous year. The mindshare of HPE StoreOnce is 19.3%, up from 18.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Deduplication Software
 

Q&A Highlights

Julia Miller - PeerSpot reviewer
May 14, 2018
 

Featured Reviews

GopalSetia - PeerSpot reviewer
Provides backups, including long-term retention with increased uptime and compatibility
I was looking for a virtual edition, and that is now available. Many customers struggle to find a solution for ransomware protection, but we can set up an enterprise recovery vault for that purpose. These features are now part of Dell's overall offering. The solution has matured, and while I don't criticize technology, most of our technical and business requirements are met with the Data Domain storage solution. We can meet customer requirements easily with Data Domain. Some feedback has been received from our operations team. There’s always room for improvement. For instance, there may be suggestions regarding enhancements to the reporting dashboard
Andrew Mcbeath - PeerSpot reviewer
Maximized storage capacity and minimized costs and an easy setup
Most of our client base is between fifty to five hundred end users. We occasionally recommend high-end HPE products for larger clients needing performance and reliability. Our clients predominantly use HPE StoreOnce for small business purposes in industries like dairy and finance Our clients have…
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Answers from the Community

Julia Miller - PeerSpot reviewer
May 14, 2018
May 14, 2018
I have used DataDomains for many years now. Once you get over the initial price tag and look at cost/TB (realised), it really is good value. The features in the newer DDOS versions match or are better than anything else I have ever seen/heard of. I have several sites that have dedup ratios of 60:1 or even 100:1 (ok: 99:1). The Data Domains I have installed and maintain are all very reliable...
2 out of 15 answers
it_user708567 - PeerSpot reviewer
May 9, 2018
Data Domain is a purpose built back up appliance and offers the best deduplication and lowest cost per logical TB in the industry. Coupled with software such as Networker, you have an unbeatable design (depending on data being backed up etc.). With deduplication taking place before it hits the LAN/WAN, it also saves network congestion and therefore costs in productivity/performance as well.
it_user332070 - PeerSpot reviewer
May 9, 2018
We have had very good success with the HPE StoreOnce product line. It usually comes in priced lower than the Data Domain solution. Getting up to 20 and 30 to 1 dedupe.
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
11%
Manufacturing Company
9%
Government
8%
Computer Software Company
17%
Government
9%
Manufacturing Company
8%
Financial Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What is your primary use case for Dell EMC PowerProtect DD (Data Domain)?
My use case for this solution is for protecting or backing up data to safeguard against hacking or for disaster recovery. I utilize it in more projects on the governmental side, the non-governmenta...
What do you like most about Dell PowerProtect DD (Data Domain)?
The product, a disk backup solution, improves our data application tasks. We used tape libraries with Dev drives in legacy architectures, resulting in slow backups compared to modern drives like NV...
What is your experience regarding pricing and costs for Dell PowerProtect DD (Data Domain)?
The price is also a disadvantage. Price is a disadvantage with the PowerProtect as it needs to be cheaper. The cheaper device costs around $70,000, which is a big sum to pay for a device like this.
What do you like most about HPE StoreOnce?
I think StoreOnce's deduplication technology is crucial for cost efficiency and faster recovery, especially for backup and data protection purposes.
What needs improvement with HPE StoreOnce?
Veeam Backups provide a stronger capability. It is well-positioned on the radar, with a mature and stable solution. Consequently, it is used throughout the company.
 

Also Known As

DataDomain, Dell EMC Data Domain, PowerProtect Data Domain
HP StoreOnce
 

Overview

 

Sample Customers

The US Army, City of Houston, Lloyds TSB, TiVo, Teck, Ingram Entertainment, The New York Mets
Eurobank Serbia
Find out what your peers are saying about Dell PowerProtect DD (Data Domain) vs. HPE StoreOnce and other solutions. Updated: June 2025.
858,038 professionals have used our research since 2012.