ExaGrid EX vs HPE StoreOnce comparison

ExaGrid and Hewlett Packard Enterprise are both solutions in the Disk Based Backup Systems category. ExaGrid is ranked #4 with an average rating of 7.0, while Hewlett Packard Enterprise is ranked #2 with an average rating of 7.5. ExaGrid holds a 11.1% mindshare in DBBS, compared to Hewlett Packard Enterprise’s 37.5% mindshare. Additionally, 100% of ExaGrid users are willing to recommend the solution, compared to 93% of Hewlett Packard Enterprise users who would recommend it.

ExaGrid EX

Read 4 ExaGrid EX reviews

1,014 Views
852 Comparison Views

100% willing to recommend

HPE StoreOnce

Read 108 HPE StoreOnce reviews

7,403 Views
2,961 Comparison Views

93% willing to recommend

ExaGrid EX

HPE StoreOnce

Comparison Buyer's Guide

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Executive SummaryUpdated on Feb 3, 2025

HPE StoreOnce and ExaGrid EX compete in the enterprise data backup and recovery market. ExaGrid EX seems to have an upper hand due to its superior scalability and efficient data deduplication.

Features: HPE StoreOnce provides advanced data deduplication, integration flexibility, and caters to diverse data management needs through compatibility with various software applications. ExaGrid EX focuses on scale-out architecture, rapid recovery times, and uses adaptive deduplication along with a landing zone to enhance performance and reduce backup windows.

Ease of Deployment and Customer Service: HPE StoreOnce offers straightforward deployment with broad IT infrastructure compatibility. ExaGrid EX presents a unique deployment with its scale-out architecture, allowing easy expansion and enhanced responsiveness in customer support, making deployment smoother and more favorable for many users.

Pricing and ROI: HPE StoreOnce involves higher initial costs but offers significant ROI due to low operational expenses via efficient deduplication. ExaGrid EX provides competitive upfront pricing, strong long-term value through its scalable solution, and rapid ROI, offering better financial flexibility and benefits in scaling.

To learn more, read our detailed ExaGrid EX vs. HPE StoreOnce Report (Updated: February 2026).

Buyer's Guide

ExaGrid EX vs. HPE StoreOnce

February 2026

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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:

Categories and Ranking

ExaGrid EX

Ranking in Disk Based Backup Systems

4th

Average Rating

9.0

Reviews Sentiment

5.0

Number of Reviews

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 February 2026, in the Disk Based Backup Systems category, the mindshare of ExaGrid EX is 11.1%, up from 10.7% compared to the previous year. The mindshare of HPE StoreOnce is 37.5%, down from 41.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Disk Based Backup Systems Market Share Distribution
Product	Market Share (%)
HPE StoreOnce	37.5%
ExaGrid EX	11.1%
Other	51.4%

Disk Based Backup Systems

Featured Reviews

AhmedEl-Tayeb

Product 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.

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Naguib Wasef

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.

Read full review

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."

"The most valuable features of ExaGrid EX are the Veeam features and Landing Zone."

"The implementation is not that complex for someone who has experience."

"If you have a large enough storage capacity then you can take an ample amount of data."

"HPE StoreOnce has high performance."

"The most valuable feature of the solution is its UI. The product's UI makes it easy for users to configure the tool."

"The most effective features for data deduplication are maximizing storage capacity and minimizing expenditure."

"The most valuable features are the deduplication and compression capabilities."

"It's easy to backup data, manage. A"

"The most valuable feature of the solution is that the tool provides good value for somebody who needs an affordable and reliable storage solution."

More HPE StoreOnce pros

Cons

"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."

"I would like to see free disk space."

"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."

"HPE StoreOnce should come with a detailed installation guide."

"We're outsourced with a partner who recalls a larger amount of problems with the stability of the product."

"Hardware maintenance involves some downtime for backup destination storage which can be a problem for some."

"One item I wanted to see is SSD drives as a cache, and that was, for a time, still lacking in StoreOnce, however, they have done it now. It's not available yet, however, it will be shortly."

"The solution could always be less expensive."

"The solution should continue to refine its integration capabilities. I also see they are starting to use cloud integration as well, which is good, but they should do more to integrate with it."

"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."

"We stopped investigating because we were not really happy with the application."

More HPE StoreOnce cons

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."

"The product is not expensive. It is available at a good price."

"The product's pricing is medium."

"The licensing costs is capacity-based and come bundled with support."

"The price puts me off. It's definitely on the high side."

"To be honest, we were quite happy with the price, but we always want things cheaper than they are. I think for what we got, we felt that the price was quite reasonable comparing it to other products that provide that same level of functionality."

"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."

More HPE StoreOnce pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

11%

Manufacturing Company

Computer Software Company

Government

Computer Software Company

12%

Manufacturing Company

10%

Financial Services Firm

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	38
Midsize Enterprise	31
Large Enterprise	49

Questions from the Community

What needs improvement with ExaGrid EX?

See all answers

What is your primary use case for ExaGrid EX?

My role in relation to ExaGrid EX is partner and reseller.

See all answers

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...

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

Dell PowerProtect Data Domain vs ExaGrid EX

Compared 31% of the time

Dell PowerVault vs ExaGrid EX

Compared 9% of the time

Quantum DXi Series vs ExaGrid EX

Compared 7% of the time

Oracle Zero Data Loss Recovery Appliance vs ExaGrid EX

Compared 7% of the time

More ExaGrid EX Competitors

Dell PowerProtect Data Domain vs HPE StoreOnce

Compared 36% of the time

Veeam Data Platform vs HPE StoreOnce

Compared 6% of the time

HPE Alletra Storage vs HPE StoreOnce

Compared 4% of the time

IBM Storage Protect vs HPE StoreOnce

Compared 4% of the time

NetApp FAS Series vs HPE StoreOnce

Compared 4% of the time

More HPE StoreOnce Competitors

Product Reports

Buyer's Guide

Disk Based Backup Systems

January 2026

Download ExaGrid EX product report

Buyer's Guide

HPE StoreOnce

January 2026

Download HPE StoreOnce product report

Also Known As

No data available

HP StoreOnce

Overview

ExaGrid's disk backup with deduplication system is purpose-built for backup that leverages an architecture optimized for scalability, performance, and price. The system scales as needed by adding ExaGrid appliances, which virtualize into a GRID architecture automatically, adding capacity and processing power while acting and being managed as one unified system.

ExaGrid disk-based backup appliances include GRID computing software, which virtualizes them into a single pool of long-term capacity. Capacity load balancing of all data across servers is automatic, and multiple GRID systems can be combined for a total logical backup capacity of 16PB.

ExaGrid

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

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

Buyer's Guide

ExaGrid EX vs. HPE StoreOnce

February 2026

Free Report: ExaGrid EX vs. HPE StoreOnce

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