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HPE StoreOnce vs Quantum DXi Series comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 5, 2024

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

HPE StoreOnce
Ranking in Deduplication Software
2nd
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
108
Ranking in other categories
Disk Based Backup Systems (2nd)
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 (65th)
 

Mindshare comparison

As of February 2026, in the Deduplication Software category, the mindshare of HPE StoreOnce is 18.5%, down from 19.3% compared to the previous year. The mindshare of Quantum DXi Series is 4.6%, up from 3.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Deduplication Software Market Share Distribution
ProductMarket Share (%)
HPE StoreOnce18.5%
Quantum DXi Series4.6%
Other76.9%
Deduplication Software
 

Featured Reviews

NW
HPE Product Manager at a tech services company with 51-200 employees
Collaborate effectively with partners and benefit from robust data management capabilities
The functions of HPE StoreOnce that I find most valuable are its deduplication and replication options. These features save data and reduce the size of data significantly. 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. So, compression and replication are critical features I appreciate. Additionally, adaptive backup and restore capabilities of HPE StoreOnce are indeed very helpful functions. As I know from my technical team, the process is very easy for end users because the GUI and user experience with StoreOnce are straightforward. They can restore their backups at any time. An important feature of StoreOnce is that they can reserve an amount of storage capacity as protected capacity for a limited time, safeguarding their data against intrusion and other interactions. Based on feedback from customers, StoreOnce is regarded as a highly useful solution for backup. I am satisfied with the security aspects of HPE StoreOnce, but it's crucial for any company to maintain a multi-layer security approach. Starting with a firewall is essential for maintaining their environment. Additionally, security features on StoreOnce are useful. I believe that no company should rely solely on one layer of security; they should adopt a multi-layer security strategy that begins at the network level and extends to their internal solutions.
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

"HPE StoreOnce is an easy-to-use tool."
"The solution's most valuable feature is its catalyst mode, along with better performance, backup, and recovery."
"The interface is very user-friendly."
"The most valuable feature of the solution is that the tool provides good value for somebody who needs an affordable and reliable storage solution."
"Has very good deduplication and encryption features."
"It is a very scalable solution."
"If you have a large enough storage capacity then you can take an ample amount of data."
"The most valuable features for us are the ease of use, the reliability, and the exceptional deduplication that we get across that data that we store on those devices."
"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

"While the solution does everything expected, it would be beneficial if AI could be integrated for optimization and monitoring."
"While StoreOnce has many features, it needs to focus on integrating with third-party backup software solutions."
"The product's support is an area with certain shortcomings requiring improvements. Support needs to be faster."
"The cost is at the forefront of everyone's mind."
"The solution would be improved if it could also be used as a data store for VMware."
"Cloud integration needs to be simplified."
"HPE StoreOnce needs to provide a SaaS solution by offering high-density disks."
"HPE StoreOnce needs to be made cheaper than products from Dell and Veeam."
"The product needs to improve performance while scaling out. It also needs to improve stability."
"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."
 

Pricing and Cost Advice

"The licensing schemes could improve in HPE StoreOnce and the price is high. They should reduce the price."
"The price of the product is reasonable."
"The cost of HPE StoreOnce is very expensive."
"The price puts me off. It's definitely on the high side."
"With the same capacity of Data Domain and ExaGrid, which is 80 terabytes, HPE is the cheapest one."
"I would rate it around two or three because, compared to others, it tends to be higher priced."
"I think the product is competitive in terms of pricing. Other products like the one from Dell are costlier compared to the tool."
"The solution is pretty expensive."
"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
Computer Software Company
12%
Manufacturing Company
10%
Financial Services Firm
7%
Government
6%
Financial Services Firm
24%
Computer Software Company
12%
Manufacturing Company
9%
Retailer
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise31
Large Enterprise49
No data available
 

Questions from the Community

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?
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....
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Also Known As

HP StoreOnce
DXi Series, Quantum DX
 

Overview

 

Sample Customers

Eurobank Serbia
Nihon Unisys, Nikoyo China
Find out what your peers are saying about HPE StoreOnce vs. Quantum DXi Series and other solutions. Updated: February 2026.
881,515 professionals have used our research since 2012.