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 7.2. ExaGrid holds a 7.3% 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 6 ExaGrid EX Series reviews

1,847 Views
1,810 Comparison Views

100% willing to recommend

HPE StoreOnce

Read 108 HPE StoreOnce reviews

7,159 Views
3,794 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: September 2025).

Buyer's Guide

ExaGrid EX Series vs. HPE StoreOnce

September 2025

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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

7.4

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 October 2025, in the Deduplication Software category, the mindshare of ExaGrid EX Series is 7.3%, down from 9.6% 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 Market Share Distribution
Product	Market Share (%)
HPE StoreOnce	18.5%
ExaGrid EX Series	7.3%
Other	74.2%

Deduplication Software

Featured Reviews

Rastislav Maniak

Partial Owner at Storage One

Improves backup and recovery time and integration with other products is good

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. I was asking about the mutual appliance, which would provide the same features as the integrated client without the hardware. This would allow it to be used in the public cloud, which I heard might be available soon. However, the private cloud is not reliable.

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Andrew Mcbeath

Technical Director of Managed IT Division at base2

Maximized storage capacity and minimized costs and an easy setup

Most of our client base is between fifty to five hundred end users. We occasionally recommend high-end HPE products for larger clients needing performance and reliability. Our clients predominantly use HPE StoreOnce for small business purposes in industries like dairy and finance Our clients have…

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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

"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 most valuable features of the solution are deduplication and 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."

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

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

"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 features for us are the ease of use, the reliability, and the exceptional deduplication that we get across that data that we store on those devices."

"The initial setup is one of the most user-friendly B2B user solutions. It's good, it's easy. Deployment usually takes less than one day. You only need one person for deployment and maintenance."

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

"The hardware is strong and all the equipment has a good infrastructure. 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."

"The deduplication feature in this product is amazing."

"It is a very scalable solution."

"The stability of the solution is excellent."

More HPE StoreOnce pros

Cons

"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."

"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 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 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 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."

"The solution's pricing could be improved."

"The solution must provide backup options for smaller capacities."

"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."

"While StoreOnce has many features, it needs to focus on integrating with third-party backup software solutions."

"While the solution does everything expected, it would be beneficial if AI could be integrated for optimization and monitoring."

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

"I don't see any new features that we could want or anything that could be done along those lines. Just that we need a bigger machine, so more speed."

"The repository should have an extension to connect to the cloud and deposit the backups."

More HPE StoreOnce cons

Pricing and Cost Advice

"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."

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

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

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

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

"HPE StoreOnce is cheaper compared to other solutions in the market."

"I would rate it around two or three because, compared to others, it tends to be higher priced."

"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."

"I rate the platform's pricing a seven out of ten."

"The licensing schemes could improve in HPE StoreOnce and the price is high. They should reduce the price."

"The solution is pretty expensive."

"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."

More HPE StoreOnce pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

15%

Financial Services Firm

12%

Manufacturing Company

11%

Government

Computer Software Company

15%

Manufacturing Company

Government

Financial Services Firm

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	49

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...

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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?

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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....

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Comparisons

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NetApp FAS Series vs ExaGrid EX Series

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Compared 33% of the time

ExaGrid EX vs HPE StoreOnce

Compared 7% of the time

HPE Alletra Storage vs HPE StoreOnce

Compared 6% of the time

Veeam Data Platform vs HPE StoreOnce

Compared 5% of the time

Dell PowerProtect Data Manager vs HPE StoreOnce

Compared 3% of the time

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Product Reports

Buyer's Guide

ExaGrid EX Series

September 2025

Download ExaGrid EX Series product report

Buyer's Guide

HPE StoreOnce

September 2025

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

September 2025

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: September 2025.

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