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Dell PowerProtect DD (Data Domain) vs HPE StoreOnce comparison

Dell Technologies and Hewlett Packard Enterprise are both solutions in the Deduplication Software category. Dell Technologies is ranked #1 with an average rating of 8.6, while Hewlett Packard Enterprise is ranked #2 with an average rating of 7.2. Dell Technologies holds a 27.4% mindshare in DS, compared to Hewlett Packard Enterprise’s 18.6% mindshare. Additionally, 88% of Dell Technologies users are willing to recommend the solution, compared to 93% of Hewlett Packard Enterprise users who would recommend it.
Dell PowerProtect DD (Data ...
Read 75 Dell PowerProtect DD (Data Domain) reviews
  • 11,834 Views
  • 6,745 Comparison Views
88% willing to recommend
HPE StoreOnce
Read 108 HPE StoreOnce reviews
  • 7,411 Views
  • 3,928 Comparison Views
93% willing to recommend
 

Comparison Buyer's Guide

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Executive SummaryUpdated on Jul 27, 2025

Dell PowerProtect DD and HPE StoreOnce compete in data backup and deduplication. Dell PowerProtect DD has the upper hand due to its advanced deduplication and integration features.

Features: Dell PowerProtect DD excels with its DD Boost technology, providing accelerated backup processes and efficient global deduplication, making it optimal for reducing data sizes and storage demands. It is also known for its data protection and support with cloud technologies. HPE StoreOnce offers Catalyst technology for flexible deduplication across various sites, fast backup and restore operations, and seamless integration with HPE's broader ecosystem, making it ideal for flexible deployments.

Room for Improvement: Dell PowerProtect DD needs better integration with virtualization technologies and cost reduction strategies to appeal more broadly. HPE StoreOnce could enhance user-friendliness and interface ergonomics while also resolving minor performance inconsistencies in deduplication. Additionally, both products struggle with comprehensive integration with third-party applications, suggesting an area for further development.

Ease of Deployment and Customer Service: HPE StoreOnce is often praised for its simple deployment process and committed customer service, providing users with dedicated support contacts for smoother experiences. Dell PowerProtect DD is recognized for strong technical and customer support but shows room for improvement in initial setup processes, even though it maintains a strong reputation for support overall.

Pricing and ROI: Both Dell PowerProtect DD and HPE StoreOnce have significant upfront costs; however, efficient data deduplication ensures low ongoing operational expenses. Dell PowerProtect DD reflects its advanced capabilities in its premium pricing while StoreOnce's scalability offers cost-effective solutions for expanding businesses. The complexity in licensing for HPE StoreOnce and additional capacity costs in Dell’s solution may add to overall expenses. Nevertheless, both deliver substantial long-term savings by reducing physical storage requirements.

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To learn more, read our detailed Dell PowerProtect DD (Data Domain) vs. HPE StoreOnce Report (Updated: September 2025).
Buyer's Guide
Dell PowerProtect DD (Data Domain) vs. HPE StoreOnce
September 2025
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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
7.4
Dell PowerProtect DD offers reduced costs and improved data management, benefiting large enterprises with efficient backup solutions.
Sentiment score
7.2
HPE StoreOnce enhances cost efficiency, speeds restores, and offers scalability, leading to generally high user satisfaction despite varied ROI.
No quotes available
For more quotes and insights, download the Dell PowerProtect DD (Data Domain) report
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.
For more quotes and insights, download the HPE StoreOnce report
 

Customer Service

Sentiment score
7.4
Dell PowerProtect DD earns praise for support and proactive service, despite some delays and slow escalation processes.
Sentiment score
7.6
HPE StoreOnce customer service is highly regarded for its responsiveness, knowledgeable staff, reliable service, and flexible support offerings.
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.
For more quotes and insights, download the Dell PowerProtect DD (Data Domain) report
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.
For more quotes and insights, download the HPE StoreOnce report
Triet Pham - PeerSpot reviewer
MA
reviewer1144389 - PeerSpot reviewer
NW
Andrew Mcbeath - PeerSpot reviewer
 

Scalability Issues

Sentiment score
6.9
Dell PowerProtect DD offers scalability for large operations, but planning for future capacity and upgrades is essential.
Sentiment score
7.4
HPE StoreOnce is scalable for enterprises, though some models require planning due to capacity limits and additional licensing.
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.
For more quotes and insights, download the Dell PowerProtect DD (Data Domain) report
The ability of HPE StoreOnce to scale is strong when more sizing options are available.
The scalability of HPE StoreOnce is very good.
For more quotes and insights, download the HPE StoreOnce report
reviewer1144389 - PeerSpot reviewerFaisal_Zia - PeerSpot reviewerShrikant Teggi - PeerSpot reviewer
NW
Andrew Mcbeath - PeerSpot reviewer
 

Stability Issues

Sentiment score
8.3
Dell PowerProtect DD is renowned for its stability, offering reliable performance with minimal disruptions despite occasional update challenges.
Sentiment score
7.7
HPE StoreOnce is highly stable with consistent performance, rare issues swiftly resolved, and reliability improving with newer models.
Dell is especially more stable in the enterprise product.
Dell PowerProtect DD (Data Domain) is stable in terms of software performance.
For more quotes and insights, download the Dell PowerProtect DD (Data Domain) report
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.
For more quotes and insights, download the HPE StoreOnce report
MA
HS
NW
 

Room For Improvement

Reviewers suggest improvements in deduplication, cloud integration, security, pricing, installation simplicity, and recovery speed for Dell PowerProtect DD.
Users seek improved deduplication, integration, interface, setup, support, storage, performance, pricing, and cloud features in HPE StoreOnce.
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.
For more quotes and insights, download the Dell PowerProtect DD (Data Domain) report
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.
For more quotes and insights, download the HPE StoreOnce report
HS
Faisal_Zia - PeerSpot reviewer
MA
NW
reviewer2612268 - PeerSpot reviewerAndrew Mcbeath - PeerSpot reviewer
 

Setup Cost

Dell PowerProtect DD is costly but valued for performance, deduplication, and support, especially in large enterprises.
HPE StoreOnce setup is costly initially, but offers competitive, feature-rich pricing with capacity-based licensing and bundled support.
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.
For more quotes and insights, download the Dell PowerProtect DD (Data Domain) report
The solution is quite expensive, possibly rated around seven and a half on a scale of one to ten.
For more quotes and insights, download the HPE StoreOnce report
Triet Pham - PeerSpot reviewerFaisal_Zia - PeerSpot reviewer
HS
Andrew Mcbeath - PeerSpot reviewer
 

Valuable Features

Dell PowerProtect DD offers efficient data protection with deduplication, scalability, security, and easy integration, enhancing storage savings and management.
HPE StoreOnce provides efficient data management through high-performance deduplication, scalability, and seamless integration for optimal backup and storage solutions.
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.
For more quotes and insights, download the Dell PowerProtect DD (Data Domain) report
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.
For more quotes and insights, download the HPE StoreOnce report
HS
Faisal_Zia - PeerSpot reviewer
MA
NW
Andrew Mcbeath - PeerSpot reviewerreviewer2612268 - PeerSpot reviewer
 

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
7.0
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 September 2025, in the Deduplication Software category, the mindshare of Dell PowerProtect DD (Data Domain) is 27.4%, down from 29.5% compared to the previous year. The mindshare of HPE StoreOnce is 18.6%, down from 19.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Deduplication Software Market Share Distribution
ProductMarket Share (%)
Dell PowerProtect DD (Data Domain)27.4%
HPE StoreOnce18.6%
Other54.0%
Deduplication Software
 

Q&A Highlights

Julia Miller - PeerSpot reviewer
May 14, 2018
Compare EMC Data Domain and HPE StoreOnce. Which is better?
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. My experience with HPE StorOnce is the exact opposite: Poor dedup ratio, limited compatibility, and not that reliable. The answer is: You get what you pay for.
See all answers
 

Featured Reviews

Faisal_Zia - PeerSpot reviewer
Offers efficient data management with robust features and reliable performance
Dell PowerProtect DD (Data Domain) can be improved in terms of price. While Dell is providing a proper device, other solutions, such as Symantec, can replicate their data through any NAS storage. Although their deduplication and compression might not be as effective, they can still accomplish the task. 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.
Read full review
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
Compare EMC Data Domain and HPE StoreOnce. Which is better?
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.
Read full answer
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.
Read full answer
See all 15 answers
 

Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
10%
Manufacturing Company
9%
Government
7%
Computer Software Company
16%
Manufacturing Company
8%
Financial Services Firm
7%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise20
Large Enterprise32
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise31
Large Enterprise49
 

Questions from the Community

What is your primary use case for Dell EMC PowerProtect DD (Data Domain)?
The typical use case for Dell PowerProtect DD (Data Domain) is for backup purposes; it is disk-based backup, which provides fast backup capabilities. Additionally, data can be replicated from site ...
See all answers
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...
See all answers
What is your experience regarding pricing and costs for Dell PowerProtect DD (Data Domain)?
The backup solution cost is higher than the actual solution.
See all answers
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.
See all answers
What is your experience regarding pricing and costs for HPE StoreOnce?
The setup cost is rated as four out of ten.
See all answers
What needs improvement with HPE StoreOnce?
To improve HPE StoreOnce, I think if HPE generates new models with lower capacities than 80 terabytes, it would be beneficial for the market. We face a significant issue with the current offerings....
See all answers
 

Comparisons

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Compared 8% of the time
ExaGrid EX Series vs Dell PowerProtect DD (Data Domain) Logo
ExaGrid EX Series vs Dell PowerProtect DD (Data Domain)
Compared 7% of the time
Veeam Data Platform vs Dell PowerProtect DD (Data Domain) Logo
Veeam Data Platform vs Dell PowerProtect DD (Data Domain)
Compared 6% of the time
Veritas NetBackup Appliance vs Dell PowerProtect DD (Data Domain) Logo
Veritas NetBackup Appliance vs Dell PowerProtect DD (Data Domain)
Compared 4% of the time
More Dell PowerProtect DD (Data Domain) Competitors
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ExaGrid EX vs HPE StoreOnce
Compared 7% of the time
HPE Alletra Storage vs HPE StoreOnce Logo
HPE Alletra Storage vs HPE StoreOnce
Compared 6% of the time
Dell PowerVault vs HPE StoreOnce Logo
Dell PowerVault vs HPE StoreOnce
Compared 6% of the time
Veeam Data Platform vs HPE StoreOnce Logo
Veeam Data Platform vs HPE StoreOnce
Compared 5% of the time
ExaGrid EX Series vs HPE StoreOnce Logo
ExaGrid EX Series vs HPE StoreOnce
Compared 4% of the time
More HPE StoreOnce Competitors
 

Product Reports

Buyer's Guide
Dell PowerProtect DD (Data Domain)
September 2025
Dell PowerProtect DD (Data Domain) reportDownload Dell PowerProtect DD (Data Domain) product report
Buyer's Guide
HPE StoreOnce
August 2025
HPE StoreOnce reportDownload HPE StoreOnce product report
 

Also Known As

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

Overview

Dell PowerProtect DD (Data Domain) is a trusted backup appliance, offering advanced data protection through efficient deduplication and compression technologies, ensuring seamless integration and cyber resilience.

Built for both traditional and modern workloads, Dell PowerProtect DD provides a powerful backup solution with reliable protection, high performance, and reduced operational risk. It streamlines backup processes while enhancing data capacity and security through features like DD Boost and multi-platform compatibility. Users benefit from its robust ransomware defense and encryption capabilities. Despite challenges like high pricing and complex setups, it integrates effectively with backup software and offers capabilities such as efficient deduplication, data compression, and multi-site data replication.

What are some key features of Dell PowerProtect DD?
  • Deduplication and Compression: Increases data capacity while conserving storage space.
  • Cyber Resilience: Offers advanced security including encryption and ransomware defense.
  • DD Boost Technology: Enhances data transfer speeds for efficient operations.
  • Broad Software Integration: Seamlessly integrates with popular backup applications.
  • Multi-Platform Compatibility: Ensures high performance across diverse environments.
What benefits do users find in Dell PowerProtect DD?
  • Efficient Storage Use: Significant reduction in storage needs through deduplication.
  • Enhanced Security: Provides reliable defense against cyber threats.
  • Operational Savings: Lowers costs by simplifying operations and reducing risks.
  • Robust Disaster Recovery: Ensures reliable data restoration across multiple sites.

Dell PowerProtect DD plays a vital role in sectors like banking, healthcare, and enterprise environments, supporting critical workload protection and seamless data recovery. It integrates with systems like NetWorker and Veeam for efficient operations, proving essential in environments where multi-site data replication is crucial.

Dell Technologies

HP StoreOnce Backup is a data backup solution that provides a consistent, high-performance, scale-out architecture for your entire enterprise. Reduce the amount of backup data capacity by 95 percent, and choose between powerful dedicated appliances for data centers, or flexible virtual appliances for smaller and remote offices.

Hewlett Packard Enterprise
 

Sample Customers

The US Army, City of Houston, Lloyds TSB, TiVo, Teck, Ingram Entertainment, The New York Mets
Eurobank Serbia
Buyer's Guide
Dell PowerProtect DD (Data Domain) vs. HPE StoreOnce
September 2025
Free Report: Dell PowerProtect DD (Data Domain) vs. HPE StoreOnce
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