HPE StoreOnce vs VAST Data comparison

Hewlett Packard Enterprise and VAST Data are both solutions in the All-Flash Storage category. Additionally, 93% of Hewlett Packard Enterprise users are willing to recommend the solution, compared to 100% of VAST Data users who would recommend it.

Comparison Buyer's Guide

Download the report

Executive Summary

We performed a comparison between HPE StoreOnce and VAST Data based on real PeerSpot user reviews.

Find out in this report how the two All-Flash Storage solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed HPE StoreOnce vs. VAST Data Report (Updated: December 2025).

Buyer's Guide

HPE StoreOnce vs. VAST Data

December 2025

Download the complete report

Helped 881,082 peers since 2012

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

Pure FlashArray X NVMe

Featured Reviews

Jaehoon Oh

Chief Technology Officer at Lambda256

Supports efficient storage management through volume snapshots and offers reliable non-disruptive upgrades

I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could be enhanced. I can see the performance statistics in the Pure Storage console, but it does not show the performance by 4K byte unit. It displays IOPS and bandwidth, but IOPS is about real use, and I want to know how many IOPS are currently running in 4K byte units. I cannot see that IOPS because most storage systems report their performance by 4K byte unit. I want to see Pure Storage performance by 4K byte unit to compare with other storage or other internal NVMe SSD.

Read full review

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

Alan Powers

HPC CTO at a manufacturing company with 10,001+ employees

Stability-wise, a device that has been up and running for years

The failover capability and resiliency are some of the solution's valuable features. The big thing is resilience because it has richer coding in it, so multiple devices can't fail. Also, one can still access a number of CBoxes that can allow one to access their file system. Once a device fails, it fails the transparency of the end-user, and it just starts using another resource. The encryption capability, the snapshots, along with a whole bunch of features make the tool valuable. VAST Data keeps adding more and more features all the time.

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

"One of the best features is the support, which is excellent."

"The duplication algorithm allows us to get a lot more use out of less storage. We're running a five terabyte array right now and we're running probably about 30 terabytes on it. So the duplication rate is pretty phenomenal, without a cost to performance. It still runs pretty smoothly."

"Pure FlashArray X NVMe has low latency and high Ops. It is an evergreen model."

"The solution is scalable."

"The initial setup was extremely simple and straightforward."

"Technical support has been helpful and responsive."

"The high availability of the product is the most valuable feature."

"The standout features for us in Pure FlashArray X NVMe are its robust DDoS protection, seamless transparent failover, and failback capabilities ensuring high availability."

More Pure FlashArray X NVMe pros

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

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

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

"Deduplication and compression are in a good ratio. It supports the HPE Catalyst protocol, which is much faster than NFS and other protocols. We use CommVault and Veeam, and these two solutions support the Catalyst protocol very well and are integrated at high speed. It is faster than normal access."

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

"I like the tool’s deduplication feature. We get a ratio of 9:1 for deduplication. The product is also Linux based. Last year, our organization faced some virus attacks. However, the backup was safe because of the product being a Linux version. HPE StoreOnce is a secure product."

"The interface is very user-friendly."

"The solution is stable."

More HPE StoreOnce pros

"This has been one of the most reliable storage systems that I have ever used."

"The solution is useful for machine learning and scientific applications, including computer simulations."

Cons

"We've seen that when we create a POD in synchronous mode, it increases the latency."

"We need better data deduplication."

"They could add more support for file storage and different types of storage."

"We would like to see VNC integration or be able to use Pure Storage with VNC."

"Managing data isn't difficult for me. The performance is usually perfect, but we sometimes have capacity problems."

"Many options to check performance, like read, writes, random writes, and random reads, are missing in Pure FlashArray X NVMe."

"If the customer only needs 500 terabytes and doesn't care how much data they'll put in the server, IBM is cheaper than Pure."

"The tool's portfolio is minimal. It is expensive."

More Pure FlashArray X NVMe cons

"The setup phase is not so simple that an end user can plug and play to make it operational."

"The cost is at the forefront of everyone's mind."

"HPE StoreOnce could improve the capacity support."

"Its customer service could be faster."

"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."

"The user interface of HPE StoreOnce should be more user-friendly. Additionally, the configuration and troubleshooting could be better."

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

More HPE StoreOnce cons

"The read/write ratio is an area in the solution with some flaws and needs improvement."

"The write performance could be improved because it is less than half of the read performance."

Pricing and Cost Advice

"Our licensing fees are $500,000+ USD."

"Pretty much everything that you need is licensed when you buy the product. Licensing to me is different than the maintenance cost, but they can bleed into one another. We buy the product, and we expect three years of support bundled into what we negotiate on our storage arrays. I would start to see maintenance costs going into the fourth year, but we're not there yet."

"The tool's pricing is cheap; I rate it a six to seven out of ten. Most of our sales are not subscription-based. We sell the hardware, and customers keep using it. They only renew the service part annually. The support can be a bit pricey, but the solution is more cost-effective than anything else out there."

"They can tout the functionality and cutting edge technology that they have, but that's where the price tag comes in. The cost is high, but I think as they grow their business and get more customers that it will probably go down a little bit."

"Given its price, Pure is not the first option."

"We pay approximately $50,000 USD per year in licensing fees."

"Pure FlashArray X NVMe’s pricing is cheaper than other products."

"As far as the licensing costs, everything is included in the license."

More Pure FlashArray X NVMe pricing and cost advice

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

"There are costs for additional storage and space."

"The product's pricing is medium."

"The solution is pretty expensive."

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

"The cost of HPE StoreOnce is very 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."

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

More HPE StoreOnce pricing and cost advice

"Price-wise, VAST Data is not the cheapest, not the most expensive one."

"We acquired VAST Data as a one-time, capital purchase."

See which vendors are best for you

Use our free recommendation engine to learn which All-Flash Storage solutions are best for your needs.

See recommendations

881,082 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

12%

Manufacturing Company

11%

Financial Services Firm

11%

Government

Computer Software Company

13%

Manufacturing Company

10%

Financial Services Firm

Government

Manufacturing Company

13%

Financial Services Firm

13%

Computer Software Company

12%

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	15
Midsize Enterprise	11
Large Enterprise	12

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

No data available

Questions from the Community

What do you like most about Pure FlashArray X NVMe?

Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use.

See all answers

What is your experience regarding pricing and costs for Pure FlashArray X NVMe?

The price of Pure FlashArray X NVMe is very expensive, though I do not know the actual price because I am using the E...

See all answers

What needs improvement with Pure FlashArray X NVMe?

I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could ...

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 backu...

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 be...

See all answers

Ask a question

Earn 20 points

Comparisons

Dell PowerStore vs Pure FlashArray X NVMe

Compared 18% of the time

Dell PowerMax vs Pure FlashArray X NVMe

Compared 12% of the time

HPE Alletra Storage vs Pure FlashArray X NVMe

Compared 10% of the time

TrueNAS R-Series vs Pure FlashArray X NVMe

Compared 10% of the time

Pure Storage FlashBlade vs Pure FlashArray X NVMe

Compared 8% of the time

More Pure FlashArray X NVMe Competitors

Dell PowerProtect Data Domain vs HPE StoreOnce

Compared 35% of the time

ExaGrid EX vs HPE StoreOnce

Compared 7% of the time

Veeam Data Platform vs HPE StoreOnce

Compared 6% of the time

HPE Alletra Storage vs HPE StoreOnce

Compared 5% of the time

NetApp FAS Series vs HPE StoreOnce

Compared 4% of the time

More HPE StoreOnce Competitors

NetApp AFF vs VAST Data

Compared 9% of the time

Pure Storage FlashArray vs VAST Data

Compared 9% of the time

Dell PowerScale (Isilon) vs VAST Data

Compared 8% of the time

MinIO vs VAST Data

Compared 7% of the time

Pure Storage FlashBlade vs VAST Data

Compared 6% of the time

More VAST Data Competitors

Product Reports

Buyer's Guide

Pure FlashArray X NVMe

January 2026

Download Pure FlashArray X NVMe product report

Buyer's Guide

HPE StoreOnce

January 2026

Download HPE StoreOnce product report

Buyer's Guide

NVMe All-Flash Storage Arrays

January 2026

Download VAST Data product report

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X

HP StoreOnce

No data available

Overview

Pure Storage FlashArray//X is the world’s first enterprise-class, all-NVMe flash storage array. It represents a new class of storage – shared accelerated storage, which is a term coined by Gartner – that delivers major breakthroughs in performance, simplicity, and consolidation.

Pure Storage

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

Innovation to break decades of data storage trade-offs.

VAST Data

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company

Eurobank Serbia

Norwest Venture Partners, General Dynamics Information Technology, Ginkgo Bioworks

Buyer's Guide

HPE StoreOnce vs. VAST Data

December 2025

Free Report: HPE StoreOnce vs. VAST Data

Find out what your peers are saying about HPE StoreOnce vs. VAST Data and other solutions. Updated: December 2025.

DOWNLOAD NOW

881,082 professionals have used our research since 2012.

See our HPE StoreOnce vs. VAST Data report.

See our list of best All-Flash Storage vendors.

We monitor all All-Flash Storage reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.