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ExaGrid EX vs HPE StoreOnce comparison

 

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
4th
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 (2nd)
 

Mindshare comparison

As of July 2026, in the Disk Based Backup Systems category, the mindshare of ExaGrid EX is 9.7%, down from 11.1% compared to the previous year. The mindshare of HPE StoreOnce is 32.5%, down from 40.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Disk Based Backup Systems Mindshare Distribution
ProductMindshare (%)
HPE StoreOnce32.5%
ExaGrid EX9.7%
Other57.8%
Disk Based Backup Systems
 

Featured Reviews

AhmedEl-Tayeb - PeerSpot reviewer
Sales Manager at MCS
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

"Both the pricing and the performance are excellent."
"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."
"It's easy to backup data, manage, and it's a product that's been running now for nearly three years without any issues."
"Deduplication and replication are both extremely important for storing huge chunks of data."
"We have saved time as less is spent on tape handling, and there are fewer hardware issues than with a tape."
"The deduplication feature is awesome; the storage space has been cut down by at least 50% and on some instances greater reduction has been achieved."
"Excellent deduplication ratios."
"HPE StoreOnce is an easy-to-use tool."
"After we implemented Catalyst with Data Protector, the recovery process time of one or two days was reduced to 30 minutes in most cases."
"If you want a reliable and reasonably-priced product, I would recommend it."
 

Cons

"I would like to see free disk space."
"The solution’s web access should be improved."
"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."
"The performance of NAS/CIFS Shares on a StoreOnce is acceptable for a standard write operation, but performance during restores (such as Virtual Machine Restores from Veeam Backup and Replication) is unacceptable."
"The solution's technical support should be faster."
"The latency is a bit high."
"We archive our backups on tape, so I feel like if we could somehow plug our tape drive directly into the StoreOnce device and set it up to where it would archive based on, if some kind of rules based engine or what have you, that would really be an improvement for us."
"We did some calculations on, when it says in the sales sheet that we got this number of terabytes, but the system itself uses some terabytes. So what we ended up with was having 10 or 11 terabytes less than HP actually said that it would contain."
"We're unable to expand our storage capabilities smoothly."
"I would like to see a better integration with Active Directory to identify users."
"Scalability can become an issue once you grow past the capacity of a single cluster pair."
 

Pricing and Cost Advice

"The renewal fee is approximately $3,500 to $3.750 for a 60 terabyte device."
"I rate ExaGrid EX ten out of ten for pricing."
"Price-wise, it comes with a high price tag when compared to other products."
"I rate the product's pricing a seven out of ten."
"The price of the product is reasonable."
"The licensing schemes could improve in HPE StoreOnce and the price is high. They should reduce the price."
"There are costs for additional storage and space."
"The product is not expensive. It is available at a good price."
"With the same capacity of Data Domain and ExaGrid, which is 80 terabytes, HPE is the cheapest one."
"HPE StoreOnce is cheaper compared to other solutions in the market."
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Top Industries

By visitors reading reviews
Financial Services Firm
10%
Government
10%
Manufacturing Company
7%
Educational Organization
7%
Manufacturing Company
9%
Financial Services Firm
9%
Computer Software 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: June 2026.
904,054 professionals have used our research since 2012.