ExaGrid EX Series vs HPE StoreOnce comparison

ExaGrid and Hewlett Packard Enterprise are both solutions in the Deduplication Software category. ExaGrid is ranked #8 with an average rating of 9.0, while Hewlett Packard Enterprise is ranked #2 with an average rating of 7.5. ExaGrid holds a 5.7% mindshare in DS, compared to Hewlett Packard Enterprise’s 18.5% 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 Series

Read 7 ExaGrid EX Series reviews

1,742 Views
1,707 Comparison Views

100% willing to recommend

HPE StoreOnce

Read 108 HPE StoreOnce reviews

7,659 Views
4,136 Comparison Views

93% willing to recommend

ExaGrid EX Series

HPE StoreOnce

Comparison Buyer's Guide

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Executive SummaryUpdated on Nov 5, 2024

HPE StoreOnce and ExaGrid EX Series are competing in the data storage and backup solutions market. ExaGrid EX Series seems to have the upper hand for those valuing efficiency and scalability.

Features: HPE StoreOnce offers powerful deduplication, scalable architecture, and seamless integration with existing infrastructures, ensuring efficient data storage solutions. ExaGrid EX Series uses a unique landing zone to optimize backup and restore times, has scalable grid architecture, and removes the need for forklift upgrades, making it suitable for dynamic environments requiring quick data access.

Room for Improvement: HPE StoreOnce could enhance its ease of setup and streamline its support processes for better customer experience. Additionally, expanding its range of integrative capabilities could offer broader appeal. ExaGrid EX Series might improve documentation to further aid deployment, explore pricing adjustments for smaller enterprises, and enhance compatibility with additional software environments.

Ease of Deployment and Customer Service: ExaGrid EX Series boasts a streamlined plug-and-play deployment process with proactive support, facilitating efficient scalability and minimal downtime. HPE StoreOnce provides comprehensive documentation and robust support resources, aiding the deployment process, though some may find ExaGrid's simplicity favorable.

Pricing and ROI: HPE StoreOnce presents competitive upfront costs and substantial ROI by optimizing storage through deduplication. ExaGrid EX Series may involve a higher initial investment but delivers significant ROI via enhanced performance and long-term storage efficiency, appealing to those prioritizing fast data retrieval and a lower total cost of ownership over time.

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

Buyer's Guide

ExaGrid EX Series vs. HPE StoreOnce

March 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 Series

Ranking in Deduplication Software

8th

Average Rating

9.0

Reviews Sentiment

6.1

Number of Reviews

Ranking in other categories

No ranking in other categories

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)

Mindshare comparison

As of March 2026, in the Deduplication Software category, the mindshare of ExaGrid EX Series is 5.7%, down from 9.4% compared to the previous year. The mindshare of HPE StoreOnce is 18.5%, down from 19.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Deduplication Software Mindshare Distribution
Product	Mindshare (%)
HPE StoreOnce	18.5%
ExaGrid EX Series	5.7%
Other	75.8%

Deduplication Software

Featured Reviews

Daniel Gillber

Information Technology advisor at Lotus Consulting

Improvements in data storage efficiency and customer support experience

ExaGrid EX Series and Veeam was easy to set up, and it worked seamlessly. It was very simple to use. We rarely needed to touch the ExaGrid boxes, except for upgrades. With the systems engineer from ExaGrid, and with our common knowledge of backup software, it was very easy to use. The performance was good, the interface was good, and the GUI was good. When ExaGrid introduced the air gapped feature, it was almost complete. Almost every hardware vendor has an air gapped feature, but they were significantly ahead of other vendors. The air gapped and immutable storage are very nice features. The price compared to other competitors was good with better features. It is not a cheap product, but compared to the features, it is a good competitor.

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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.

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Quotes from Members

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

Pros

"The tool has improved backup and recovery times. One of the key features contributing to this improvement is the landing zone and deduplication retention zone. When data is in the landing zone, the process is fast, ensuring smooth backup and recovery operations at high speeds. However, the process becomes slower for long-term backups moved to the retention zone due to fragmentation. So, if the data is older than a few days, the speed may be limited, especially for non-deduplicated data in the landing zone."

"The most valuable feature is the ease of use and data deduplication. It's extremely easy to use and does a very good job of data deduplication and compression."

"It is a solid and a quite simple solution, which is a good combination. The customers like the simplicity and its scale-out capacity. They like the support pricing, and even the extension capacity pricing, a fixed price, which the executive is offering in Czech market."

"The equipment is pretty solid."

"One of the main features is the landing zone, it is a particular space where the information is not duplicated."

"ExaGrid has improved my organization in the way that we get reliable backups with very little administration."

"The solution easily integrates with the backup targets, such as Veeam."

"The most valuable features of the solution are deduplication and landing zone."

More ExaGrid EX Series pros

"The product's most valuable feature is stability."

"The most valuable feature of HPE StoreOnce is the virtual drive."

"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 have better support - hardware and software - compared to the competition."

"This is a user-friendly solution."

"The deduplication feature in this product is amazing."

"Personally, I think it's the best storage product in HPE for small to medium-sized businesses."

"The solution's most valuable feature is its catalyst mode, along with better performance, backup, and recovery."

More HPE StoreOnce pros

Cons

"The solution could improve by switching to a flash-type solution rather than the spinning drives that they currently use. However, we have not had any failure with the spinning drives. The flash-type drives are more up-to-date and are something that is in their roadmap."

"The support is not that fast to deal with our concerns. It is next day support, they could improve on the speed."

"I would like for them to develop direct cloud integration with a third-party cloud. Direct integration with AWS and other cloud providers."

"When speaking about a scale-out, you want to have better equipment. You cannot just add a disc to the foreign equipment. You have to buy another one and put it together, like parallel."

"The tool reduces storage footprint. However, clients are now storing data for longer durations with increasing requirements to retain backups for longer periods, particularly as a defense against ransomware attacks. As a result, the retention zone with duplicated data is experiencing more demand, leading to space constraints. This necessitates using higher-end, more expensive models to address the issue."

"The product's documentation can be made more precise."

"I would like for them to develop direct cloud integration with a third-party cloud. Direct integration with AWS and other cloud providers."

"The one place where we are sometimes losing the opportunity with ExaGrid is that a few customers still require a fiber channel connectivity, which is not always possible."

"Some models are shipped with one power supply by default, even when redundant PSUs are supported in pairs; be aware of that."

"One of the drawbacks of this product is that you cannot add another disk array when you reach capacity."

"We wanted to restore the files we backed up, and on three occasions we were not able to, and this got us in a lot of trouble, so I don't think I will take this risk again. Use something else."

"I would like to see better integration with Veeam software."

"It is difficult to solve issues with this solution remotely. I prefer to use the knowledge base platforms. The response time could improve."

"It needs to be more versatile to run our tests smoothly."

"Some high-level cybersecurity features could be achieved with some entities, and their integration could be built into the store."

"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."

More HPE StoreOnce cons

Pricing and Cost Advice

"In comparison to other solutions, it's affordable. They're all too expensive."

"My company had to pay 1,60,000 EUR for the system we use, and the payment was made just once for the system and five years of full support."

"The previous solutions I have used both included the Backup Software and the Appliance making it hard to compare to this solution. However, overall the solution is reasonably priced for the features you receive. ExaGrid EX Series is priced better than HP, Dell, and possibly Commvault which I have compared in the past."

"I rate ExaGrid EX Series' pricing eight to nine out of ten."

"The current agreement has 21 terabytes of free space and it cost approximately $35,000."

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

"The price of the product is reasonable."

"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."

"With the same capacity of Data Domain and ExaGrid, which is 80 terabytes, HPE is the cheapest one."

"There are costs for additional storage and space."

"Price-wise, it comes with a high price tag when compared to other products."

"The cost of HPE StoreOnce is very expensive."

More HPE StoreOnce pricing and cost advice

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Top Industries

By visitors reading reviews

Manufacturing Company

16%

Computer Software Company

11%

Financial Services Firm

10%

Energy/Utilities Company

Computer Software Company

11%

Manufacturing Company

10%

Financial Services Firm

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	5
Midsize Enterprise	2

By reviewers
Company Size	Count
Small Business	38
Midsize Enterprise	31
Large Enterprise	50

Questions from the Community

What do you like most about ExaGrid EX Series?

The tool has improved backup and recovery times. One of the key features contributing to this improvement is the landing zone and deduplication retention zone. When data is in the landing zone, the...

See all answers

What is your experience regarding pricing and costs for ExaGrid EX Series?

I rate ExaGrid EX Series' pricing eight to nine out of ten.

See all answers

What needs improvement with ExaGrid EX Series?

Everything can always be better, so I would give it a nine.

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 Series

Compared 31% of the time

Quantum DXi Series vs ExaGrid EX Series

Compared 14% of the time

Veritas NetBackup Appliance vs ExaGrid EX Series

Compared 8% of the time

NetApp FAS Series vs ExaGrid EX Series

Compared 7% of the time

NetApp AltaVault vs ExaGrid EX Series

Compared 4% of the time

More ExaGrid EX Series Competitors

Dell PowerProtect Data Domain vs HPE StoreOnce

Compared 37% of the time

ExaGrid EX vs HPE StoreOnce

Compared 7% of the time

Veeam Data Platform vs HPE StoreOnce

Compared 5% of the time

NetApp FAS Series vs HPE StoreOnce

Compared 4% of the time

Dell PowerVault vs HPE StoreOnce

Compared 3% of the time

More HPE StoreOnce Competitors

Product Reports

Buyer's Guide

ExaGrid EX Series

March 2026

Download ExaGrid EX Series product report

Buyer's Guide

HPE StoreOnce

March 2026

Download HPE StoreOnce product report

Also Known As

EX Series

HP StoreOnce

Overview

The ExaGrid EX Series hyper-converged secondary storage for backup product line consists of eight appliance models. Each appliance is sized for a full backup and for long-term retention. Any ExaGrid appliance can be mixed and matched in the same scale-out system with any other size or age appliance, allowing customers to buy what they need as they need it. This pay-as-you-grow model allows up to 25 appliances in a single scale-out system.

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

NCI Group, North Attleborough Public School, North Kingstown School Department, NPS Pharmaceuticals, Prudential Douglas Elliman, Rathbone Brothers PLC, Rio Hondo College, Ruder Finn, Sarah Lawrence College

Eurobank Serbia

Buyer's Guide

ExaGrid EX Series vs. HPE StoreOnce

March 2026

Free Report: ExaGrid EX Series vs. HPE StoreOnce

Find out what your peers are saying about ExaGrid EX Series vs. HPE StoreOnce and other solutions. Updated: March 2026.

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