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Datto SIRIS vs HPE StoreOnce comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

ROI

Sentiment score
3.4
Datto SIRIS significantly reduces management needs and costs, enhancing efficiency and performance for businesses reliant on its solution.
Sentiment score
7.2
HPE StoreOnce enhances cost efficiency, speeds restores, and offers scalability, leading to generally high user satisfaction despite varied ROI.
I estimate that Datto SIRIS has saved around 50% of the time in our processes, as two people can manage everything efficiently, while previously we would have needed eight to ten people without Datto SIRIS.
Infrastructure Engineer at Neurealm
Definitely, the return on investment has been massive.
Managing Director at HB Technologies
If we request the price for StoreOnce as a standalone product, it tends to be higher than when it is included in a larger solution where we can receive better discounts.
HPE Product Manager at a tech services company with 51-200 employees
 

Customer Service

Sentiment score
6.8
Datto SIRIS customer service is highly rated for its speed, effectiveness, and reliable support during maintenance and recovery processes.
Sentiment score
7.6
HPE StoreOnce customer service is highly regarded for its responsiveness, knowledgeable staff, reliable service, and flexible support offerings.
I had a memorable experience with customer support during the bare-metal recovery, and the support was brilliant.
VoIP phone IT manager at Fusion 2K
The customer support of Datto SIRIS is very high-level.
Engineer at a renewables & environment company with 51-200 employees
The speed of technical support was excellent.
President & CEO at a tech vendor with 51-200 employees
HPE's support is very good, proactive, and monitored through InfoSight.
Technical Director of Managed IT Division at base2
When we open a case for support during installation or other matters, they are always timely and provide full support.
HPE Product Manager at a tech services company with 51-200 employees
 

Scalability Issues

Sentiment score
4.9
Datto SIRIS offers flexible scalability, with options varying by provider, allowing easy upgrades, but older versions may limit growth.
Sentiment score
7.4
HPE StoreOnce is scalable for enterprises, though some models require planning due to capacity limits and additional licensing.
You can expand it as much as you can expand it, but if you get the Datto SIRIS 3, it's not going to be as good as the enterprise version of Datto SIRIS 5.
Cyber Security Consultant
The contracts are flexible enough to upgrade or downgrade the product without too much of a penalty.
Managing Director at HB Technologies
Scalability is dependent on the cloud provider we are using, so it cannot be solely judged through Datto SIRIS.
AI/ML Engineer at IT BY DESIGN
The ability of HPE StoreOnce to scale is strong when more sizing options are available.
HPE Product Manager at a tech services company with 51-200 employees
The scalability of HPE StoreOnce is very good.
Technical Director of Managed IT Division at base2
 

Stability Issues

Sentiment score
7.2
Datto SIRIS is reliable and stable, automating backups to prevent failures without user-reported downtime or outages.
Sentiment score
7.7
HPE StoreOnce is highly stable with consistent performance, rare issues swiftly resolved, and reliability improving with newer models.
We have automated all our backups, so we do not encounter any issues with backup failures.
AI/ML Engineer at IT BY DESIGN
I haven't had any issues or seen any issues with the ones over the past four or five years.
Cyber Security Consultant
For the stability of HPE StoreOnce, based on customer feedback, I rate it highly as one of the most stable products in the backup and archiving line.
HPE Product Manager at a tech services company with 51-200 employees
 

Room For Improvement

Datto SIRIS struggles with Mac OS backup, performance, high costs, and requires faster recovery and better integration tools.
Users seek improved deduplication, integration, interface, setup, support, storage, performance, pricing, and cloud features in HPE StoreOnce.
The backup of the Mac OS solution in Datto SIRIS doesn't exist at this moment.
Engineer at a renewables & environment company with 51-200 employees
Saying that it is the network is not detailed enough. We need more specific information about the network.
President & CEO at a tech vendor with 51-200 employees
Strengthening security to enhance the product's overall effectiveness in backup and disaster management.
Infrastructure Engineer at Neurealm
It is well-positioned on the radar, with a mature and stable solution.
Infrastructure Manager at a paper AND forest products with 10,001+ employees
The benefits of StoreOnce, which we discussed, include its compression capabilities with a ratio of 1 to 10.
HPE Product Manager at a tech services company with 51-200 employees
While the solution does everything expected, it would be beneficial if AI could be integrated for optimization and monitoring.
Technical Director of Managed IT Division at base2
 

Setup Cost

Datto SIRIS offers fair pricing and seamless setup, but lengthy contracts and MSP upcharges might deter some SMB clients.
HPE StoreOnce setup is costly initially, but offers competitive, feature-rich pricing with capacity-based licensing and bundled support.
The only issue is that a lot of people are looking to cut costs, especially right now, and Datto has priced itself out of one of the largest parts of the U.S. market.
Cyber Security Consultant
It's a high-level solution, and the price is correct for me.
Engineer at a renewables & environment company with 51-200 employees
Thoughts on pricing indicate that it is handled by a different team, varies based on specific solutions and storage capacities selected by organizations, and is generally fairly priced for the value provided.
Infrastructure Engineer at Neurealm
The solution is quite expensive, possibly rated around seven and a half on a scale of one to ten.
Technical Director of Managed IT Division at base2
 

Valuable Features

Datto SIRIS offers reliable, efficient backup and recovery with user-friendly features, excellent security, support, and competitive cost-effectiveness.
HPE StoreOnce provides efficient data management through high-performance deduplication, scalability, and seamless integration for optimal backup and storage solutions.
My experience with the one-click disaster recovery feature is that it simplifies the process significantly, allowing for rapid recovery and integration with backup and disaster recovery solutions, automating tasks while providing security against various threats.
Infrastructure Engineer at Neurealm
In the last six years, none of my customers faced a ransomware attack, and we use this functionality for system outages and physical server crashes.
System Engineer II at a tech services company with 1,001-5,000 employees
The reporting via email from Datto SIRIS for me, my customer, and my team shows that every single backup is okay or if there is a problem because the snapshot for the server is broken or another problem that I can address systematically.
Engineer at a renewables & environment company with 51-200 employees
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.
HPE Product Manager at a tech services company with 51-200 employees
The most effective features for data deduplication are maximizing storage capacity and minimizing expenditure.
Technical Director of Managed IT Division at base2
The recovery is important.
Infrastructure Manager at a paper AND forest products with 10,001+ employees
 

Categories and Ranking

Datto SIRIS
Ranking in Disk Based Backup Systems
3rd
Average Rating
9.0
Reviews Sentiment
5.3
Number of Reviews
10
Ranking in other categories
Backup and Recovery (7th), Disaster Recovery as a Service (4th), Disaster Recovery (DR) Software (10th), MSP Backup (2nd)
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 Datto SIRIS is 3.0%. 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%
Datto SIRIS3.0%
Other64.5%
Disk Based Backup Systems
 

Featured Reviews

James Melton - PeerSpot reviewer
Cyber Security Consultant
Reliable backups have protected email and servers and now enable rapid ransomware recovery
For the smaller Datto SIRIS devices that are made for backing up one or maybe two different machines, adding more RAM and giving it a better CPU would be phenomenal. Sometimes when dealing with entry-level Datto SIRIS products, you face an issue depending on how much storage there is on there when it's trying to parse through all of the data. It takes a while, and when it comes to data recovery, time is everything. Datto SIRIS should remove the ability to set it up as a NAS-based file share operation system. It seems counterintuitive for something that is made for immutable storage that is walled off so that it can't be destroyed to be allowed to be a local centralized file share that individuals have access to. This seems to be begging for a mishap. Datto SIRIS will require some maintenance when the hard drive gets past 50% capacity, which is Datto's statement on the capacity. You should never use past 50% of the storage locally. Then you have to reach out to Datto directly to get an external hard drive to transfer files to send off the data for it to be shot up to the cloud. We've had a couple of instances of devices not uploading to the cloud because either they were too full or there were failures in certain parts of the file upload to the cloud, which put it into a circle of death where it just kept trying to do the same thing over and over again and had to request assistance from Datto in those situations. Otherwise, if you store it in a dusty cabinet, you have to spray it with a computer duster every once in a while.
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.
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Top Industries

By visitors reading reviews
Construction Company
15%
Manufacturing Company
14%
Financial Services Firm
9%
Media Company
9%
Manufacturing Company
10%
Financial Services Firm
9%
Computer Software Company
8%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise1
Large Enterprise1
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise30
Large Enterprise51
 

Questions from the Community

What is your experience regarding pricing and costs for Datto SIRIS?
My experience with pricing, setup cost, and licensing is very straightforward. The only thing I would prefer is if the contracts were 12 months instead of 36.
What needs improvement with Datto SIRIS?
At this stage, there is no improvement needed for Datto SIRIS. Cost is a consideration, but in general, we are fairly happy with the value. My experience with pricing, setup cost, and licensing is ...
What is your primary use case for Datto SIRIS?
Our main use case for Datto SIRIS is both on-premises and cloud-based.
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

SIRIS
HP StoreOnce
 

Overview

 

Sample Customers

Datapac, Dynamic Business Technologies, SAX Technology Advisors
Eurobank Serbia
Find out what your peers are saying about Datto SIRIS vs. HPE StoreOnce and other solutions. Updated: June 2026.
902,894 professionals have used our research since 2012.