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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 (61st)
 

Mindshare comparison

As of June 2026, in the Deduplication Software category, the mindshare of HPE StoreOnce is 17.1%, down from 19.3% 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 (%)
HPE StoreOnce17.1%
Quantum DXi Series4.8%
Other78.1%
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

"For me, when I think about HPE, think about longevity."
"It is at the top of its class, in my experience."
"The initial setup is simple."
"From an operational standpoint it has increased our efficiency and we're able to save a lot of manpower and resources for mundane backup stuff that we've done in the past so that other people can focus on more strategic initiatives in our business."
"HPE StoreOnce optimizes the backup and recovery process through its efficient software, notably the Catalyst software, in terms of speed."
"This is a user-friendly solution."
"The HP StoreOnce range is great if you are running NetBackup as it integrates well with the backup product, the deduplication rates are very favorable, and it also allows the use of the DR option using AIR."
"The scalability is very good."
"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

"So when we had the systems put in the technician that came out actually hadn’t seem them before."
"It's not big, but it could be smaller and take up less space in the data center."
"The one issue I have is the maintenance package – it's very expensive."
"Maybe when we do restores for Veeam, the way it has to re-hydrate all the deduplicated data, if there's a way to speed that up that would be a good feature, some kind of algorithm or something."
"They could provide more options for storage capacity. At the moment, they only have an 80-terabyte storage facility."
"We had one problem when data replication got stuck and we had to ask HP for help."
"In terms of areas for improvement, I believe HPE StoreOnce could learn from competitors like Dell's Data Domain and ExtraHop in refining its architecture."
"The appliance doesn't have the global deduplication, it has StoreOnce deduplication. It does not deduplicate across the appliance, it will deduplicate in one particular store. With the global deduplication, I could store more data."
"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

"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."
"We have got a perpetual license, and we have access to all the features. If you are using cloud banks, you can store the internal data in HPE Cloud if needed. You can offload the data to the HPE Cloud. It is a licensed product. We have got around 10 TB of cloud bank storage with a one-time payment. We specifically took 10 TB for very critical offsite backups. We can also increase it in blocks if needed."
"I would rate it around two or three because, compared to others, it tends to be higher priced."
"The product is not expensive. It is available at a good price."
"The cost of HPE StoreOnce is very expensive."
"The licensing costs is capacity-based and come bundled with support."
"There are costs for additional storage and space."
"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
10%
Financial Services Firm
9%
Computer Software Company
8%
Construction Company
7%
Financial Services Firm
15%
Manufacturing Company
9%
Computer Software Company
9%
Retailer
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise30
Large Enterprise51
No data available
 

Questions from the Community

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....
What is your primary use case for HPE StoreOnce?
The main use case for HPE StoreOnce is that it serves as an appliance storage for backup and archiving. StoreOnce incorporates deduplication and replication, achieving a ratio that arrives at 1 to ...
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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: June 2026.
900,747 professionals have used our research since 2012.