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ExaGrid EX vs HPE StoreOnce comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Feb 3, 2025

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

ExaGrid EX
Ranking in Disk Based Backup Systems
6th
Average Rating
9.0
Reviews Sentiment
5.0
Number of Reviews
4
Ranking in other categories
No ranking in other categories
HPE StoreOnce
Ranking in Disk Based Backup Systems
2nd
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
108
Ranking in other categories
Deduplication Software (3rd)
 

Mindshare comparison

As of September 2026, in the Disk Based Backup Systems category, the mindshare of ExaGrid EX is 9.5%, down from 11.3% compared to the previous year. The mindshare of HPE StoreOnce is 31.7%, down from 39.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Disk Based Backup Systems Mindshare Distribution
ProductMindshare (%)
HPE StoreOnce31.7%
ExaGrid EX9.5%
Other58.8%
Disk Based Backup Systems
 

Featured Reviews

AhmedEl-Tayeb - PeerSpot reviewer
Sales Manager at a tech consulting company with 201-500 employees
Has offered a cost-effective option with solid results but requires automation features for better efficiency
For ExaGrid EX, I would appreciate additional features such as backup and restore, automation processes, and automation software for backup and restore processes. I mention that some additional features may be provided by VMware or Dell as support for the hardware they are selling, but ExaGrid EX is more of a budget-friendly solution for customers who are in charge on a daily basis of the solution itself, dealing with manual tasks rather than automated tasks. I am not in a situation to provide an exact answer for what I would specifically improve in this regard.
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.

Quotes from Members

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

Pros

"I find ExaGrid EX to be a useful solution for customers looking for a budget-friendly product."
"Backup and restore processes are much shorter now, and we don't need forklift upgrades every three to four years."
"The most valuable features of ExaGrid EX are the Veeam features and Landing Zone."
"Both the pricing and the performance are excellent."
"I have found the dedupe technology to be the most valuable feature, as it results in more efficient storage utilization, cutting capital expenditure in half."
"The time to do the backups is great for us because the last backups we used to have took at least 8 - 10 hours and at the moment the backups takes one hour or less."
"For me the maintenance has been cheaper, the implementation was easy, it's a small product that doesn’t take up much space in my data center, and it’s been reliable and out-performed what I had used previously."
"Nothing's perfect, but the speed we get from the system, the deduplication we get from the system, the replication, it all works as designed."
"The most effective features for data deduplication are maximizing storage capacity and minimizing expenditure."
"Previously, if someone lost a file it could take 10 minutes to locate and load the appropriate tape, now the restore time is around five seconds."
"The most valuable features are the deduplication and compression capabilities."
"The most valuable feature of HPE StoreOnce is the virtual drive."
 

Cons

"ExaGrid EX is more of a budget-friendly solution for customers who are in charge on a daily basis of the solution itself, dealing with manual tasks rather than automated tasks."
"I would like to see free disk space."
"The solution’s web access should be improved."
"The product's support is an area with certain shortcomings requiring improvements. Support needs to be faster."
"An improvement would be an improved deduplication algorithm."
"We selected this as a method to improve and better scale our backup deduplication, but it turned out StoreOnce introduced enough inconsistencies and incompatibilities, we actually went back to Commvault’s native deduplication."
"It needs better integration with third party backup applications."
"I'd like to see the following features added in: More detailed reporting, more granular reporting, and more features in the CLI."
"Reporting needs to be worked on."
"The solution would be improved if it could also be used as a data store for VMware, not only as a backup repository but as an archiving data store for VMware."
"StoreOnce software is sometimes unstable."
 

Pricing and Cost Advice

"I rate ExaGrid EX ten out of ten for pricing."
"The renewal fee is approximately $3,500 to $3.750 for a 60 terabyte device."
"The price puts me off. It's definitely on the high side."
"HPE StoreOnce is cheaper compared to other solutions in the market."
"With the same capacity of Data Domain and ExaGrid, which is 80 terabytes, HPE is the cheapest one."
"Price-wise, it comes with a high price tag when compared to other products."
"I would rate it around two or three because, compared to others, it tends to be higher priced."
"I rate the platform's pricing a seven out of ten."
"I think the product is competitive in terms of pricing. Other products like the one from Dell are costlier compared to the tool."
"The licensing costs is capacity-based and come bundled with support."
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Top Industries

By visitors reading reviews
Financial Services Firm
10%
Government
10%
Manufacturing Company
9%
Educational Organization
7%
Financial Services Firm
9%
Manufacturing Company
9%
Outsourcing Company
8%
Construction Company
8%
 

Company Size

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

Questions from the Community

What needs improvement with ExaGrid EX?
For ExaGrid EX, I would appreciate additional features such as backup and restore, automation processes, and automation software for backup and restore processes. I mention that some additional fea...
What is your primary use case for ExaGrid EX?
My role in relation to ExaGrid EX is partner and reseller.
What advice do you have for others considering ExaGrid EX?
I would prefer another way to provide support; sending all the questions in an Excel sheet or a Word file would allow me to answer them in a couple of hours and send them back. I have no problem re...
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 ...
 

Also Known As

No data available
HP StoreOnce
 

Overview

 

Sample Customers

7-Eleven, ABC, ACNB Bank, Admiration Foods, Aeroflex, AGH, Alabama Alcoholic Beverage Control Board, Alberta Motor Association, Allegro MicroSystems, American Standard, Ameris Bank, Arch Reinsurance Ltd., Arthritis Foundation
Eurobank Serbia
Find out what your peers are saying about ExaGrid EX vs. HPE StoreOnce and other solutions. Updated: August 2026.
911,839 professionals have used our research since 2012.