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Dell EMC PowerProtect 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 26.6% 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 EMC PowerProtect Data ...
Read 76 Dell EMC PowerProtect Data Domain reviews
  • 10,786 Views
  • 6,148 Comparison Views
88% willing to recommend
HPE StoreOnce
Read 108 HPE StoreOnce reviews
  • 7,017 Views
  • 3,649 Comparison Views
93% willing to recommend
 

Comparison Buyer's Guide

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Executive SummaryUpdated on Nov 4, 2025

HPE StoreOnce and Dell EMC PowerProtect Data Domain are prominent players in the data protection market. Generally, HPE StoreOnce is preferred for its flexibility in deduplication and runtime performance, while Dell EMC PowerProtect Data Domain is favored for its superior data reduction and integration capabilities.

Features: HPE StoreOnce includes flexible deduplication options, supporting multiple types of deduplication according to user needs, enhancing disaster recovery efficiency. Dell EMC PowerProtect Data Domain is known for its advanced deduplication, data protection features such as DD Boost, and strong integration with various backup applications ensuring secure and swift recovery.

Room for Improvement: HPE StoreOnce could benefit from a better web management interface, stronger third-party application integration, and improved deduplication for small files. Dell EMC PowerProtect Data Domain is working on enhancing cloud capabilities, simplifying deployment, and resolving scalability challenges.

Ease of Deployment and Customer Service: HPE StoreOnce is valued for its comprehensive support options and quick problem resolution. Dell EMC PowerProtect Data Domain offers strong systems integration support with an emphasis on local presence, although initial deployment could be more straightforward and better supported for complex setups.

Pricing and ROI: HPE StoreOnce is often viewed as cost-effective over time with its lifetime licenses and feature set. While Dell EMC PowerProtect Data Domain may appear costlier initially, its performance and features support considerable storage efficiency, appealing more to larger enterprises.

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To learn more, read our detailed Dell EMC PowerProtect Data Domain vs. HPE StoreOnce Report (Updated: November 2025).
Buyer's Guide
Dell EMC PowerProtect Data Domain vs. HPE StoreOnce
November 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
6.9
Dell EMC PowerProtect Data Domain offers cost-effective, reliable backup with significant savings, fast recovery, and high data integrity for enterprises.
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 EMC PowerProtect 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
7.3
Dell EMC PowerProtect Data Domain users generally find support effective but notice declines in service speed for complex issues.
Sentiment score
7.6
HPE StoreOnce customer service is highly regarded for its responsiveness, knowledgeable staff, reliable service, and flexible support offerings.
They respond within 24 hours of case submission, which is crucial for maintaining the solution.
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.
For more quotes and insights, download the Dell EMC PowerProtect Data Domain report
HPE's support is very good, proactive, and monitored through InfoSight.
When we open a case for support during installation or other matters, they are always timely and provide full support.
For more quotes and insights, download the HPE StoreOnce report
reviewer1144389 - PeerSpot reviewerTriet Pham - PeerSpot reviewer
MA
Andrew Mcbeath - PeerSpot reviewer
NW
 

Scalability Issues

Sentiment score
6.8
Dell EMC PowerProtect Data Domain offers seamless scalability and integration, ideal for enterprises, despite some users wanting improved scalability.
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.
By keeping the increasing data in mind, we decided to go for Data Domain.
The solution is scalable to higher models, both vertically and horizontally.
For more quotes and insights, download the Dell EMC PowerProtect 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 reviewerShrikant Teggi - PeerSpot reviewerFaisal_Zia - PeerSpot reviewer
NW
Andrew Mcbeath - PeerSpot reviewer
 

Stability Issues

Sentiment score
8.1
Dell EMC PowerProtect Data Domain is highly stable, reliable, with seamless data replication, requiring minimal reboots and offering strong performance.
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 EMC PowerProtect 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

Dell EMC PowerProtect users seek simplified VTL, better deduplication, improved UI, lower costs, and enhanced integration and support.
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).
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.
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.
For more quotes and insights, download the Dell EMC PowerProtect Data Domain report
It is well-positioned on the radar, with a mature and stable solution.
The benefits of StoreOnce, which we discussed, include its compression capabilities with a ratio of 1 to 10.
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
MA
Faisal_Zia - PeerSpot reviewerreviewer2612268 - PeerSpot reviewer
NW
Andrew Mcbeath - PeerSpot reviewer
 

Setup Cost

Dell EMC PowerProtect Data Domain is expensive, with costs depending on size, licensing, and is valued for performance and support.
HPE StoreOnce setup is costly initially, but offers competitive, feature-rich pricing with capacity-based licensing and bundled support.
It is almost four times the earlier price.
The pricing has become higher since July, and the license costs are more expensive compared to the past.
The price for PowerProtect DD is not suitable for my customers. It is very high.
For more quotes and insights, download the Dell EMC PowerProtect 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
Sufyan Khan - PeerSpot reviewer
HS
Triet Pham - PeerSpot reviewerAndrew Mcbeath - PeerSpot reviewer
 

Valuable Features

Dell EMC PowerProtect Data Domain enhances storage efficiency with deduplication, fast transfers, user-friendly interface, and strong security features.
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.
Dell PowerProtect DD (Data Domain) is highly consistent, durable, easy to install, scalable, and compatible with any software today.
By using Data Domain, we get the advantage of data deduplication, reducing data size.
For more quotes and insights, download the Dell EMC PowerProtect 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
Sufyan Khan - PeerSpot reviewerShrikant Teggi - PeerSpot reviewer
NW
Andrew Mcbeath - PeerSpot reviewerreviewer2612268 - PeerSpot reviewer
 

Categories and Ranking

Dell EMC PowerProtect Data ...
Ranking in Deduplication Software
1st
Ranking in Disk Based Backup Systems
1st
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
76
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 November 2025, in the Deduplication Software category, the mindshare of Dell EMC PowerProtect Data Domain is 26.6%, down from 29.0% compared to the previous year. The mindshare of HPE StoreOnce is 18.6%, down from 19.8% 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)26.6%
HPE StoreOnce18.6%
Other54.8%
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…
Read full review
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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
13%
Financial Services Firm
10%
Manufacturing Company
10%
Government
7%
Computer Software Company
14%
Manufacturing Company
9%
Government
7%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise21
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)?
Dell PowerProtect DD (Data Domain) is an integrated backup appliance-based solution, and our installed base in Pakistan is substantial. We possess high expertise in both pre-sales and post-sales ac...
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)?
Dell PowerProtect DD (Data Domain)'s licensing cost was excellent in 2023, but after 2023, the operating environment licensing cost is huge. It is almost four times the earlier price.
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 5% of the time
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Product Reports

Buyer's Guide
Dell EMC PowerProtect Data Domain
November 2025
Dell EMC PowerProtect Data Domain reportDownload Dell EMC PowerProtect Data Domain product report
Buyer's Guide
HPE StoreOnce
October 2025
HPE StoreOnce reportDownload HPE StoreOnce product report
 

Also Known As

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

Overview

Dell EMC PowerProtect Data Domain is a leading backup appliance known for its resilience and integration. It effectively handles diverse workloads with ease, providing robust data protection and optimized storage management across environments.

Dell EMC PowerProtect Data Domain stands out with its history of serving as a premier backup appliance. Its sophisticated data services platform ensures resilience against cyber threats. This appliance simplifies data operations for both traditional and modern environments, including AI and containers, significantly lowering costs and risks. With remarkable deduplication and compression efficiency, DD Boost accelerates data transfer, ensuring seamless integration with backup applications. Cloud service compatibility enhances its utility, while advanced security measures bolster data protection, making it ideal for large-scale deployments.

What are the key features of Dell EMC PowerProtect Data Domain?
  • Deduplication Efficiency: Minimizes storage consumption through advanced data reduction techniques.
  • DD Boost: Enhances data transfer speeds, improving backup and recovery efficiency.
  • Seamless Integration: Works well with popular backup software like Veeam, NetWorker, and Avamar.
  • Advanced Security: Protects data with enhanced security features against cyber threats.
  • Cloud Compatibility: Offers integration options with cloud services for extended capabilities.
What benefits should users expect when using Dell EMC PowerProtect Data Domain?
  • Storage Savings: Achieves significant reductions in storage requirements via effective compression and deduplication.
  • Operational Simplicity: Eases setup and maintenance with intuitive interfaces and user-friendly design.
  • Reliability: Provides stable and dependable data protection solutions.
  • Performance: Delivers exceptional backup and recovery speeds, ensuring minimal downtime.

In industries like finance and healthcare, Dell EMC PowerProtect Data Domain is crucial for secure data backup and archiving. Organizations leverage its capabilities for efficient data management, aiding in compliance and safeguarding sensitive information. Many use it in hybrid environments for business continuity and disaster recovery, benefiting from optimized data transfer and storage efficiencies.

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 EMC PowerProtect Data Domain vs. HPE StoreOnce
November 2025
Free Report: Dell EMC PowerProtect Data Domain vs. HPE StoreOnce
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