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Datto SIRIS vs Hornetsecurity Altaro VM Backup 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:
 

Categories and Ranking

Datto SIRIS
Ranking in Backup and Recovery
17th
Ranking in Disaster Recovery (DR) Software
12th
Average Rating
9.2
Reviews Sentiment
5.1
Number of Reviews
8
Ranking in other categories
Disk Based Backup Systems (3rd), Disaster Recovery as a Service (5th), MSP Backup (4th)
Hornetsecurity Altaro VM Ba...
Ranking in Backup and Recovery
31st
Ranking in Disaster Recovery (DR) Software
20th
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
31
Ranking in other categories
Cloud Backup (25th)
 

Mindshare comparison

As of January 2026, in the Backup and Recovery category, the mindshare of Datto SIRIS is 0.2%, up from 0.0% compared to the previous year. The mindshare of Hornetsecurity Altaro VM Backup is 0.9%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Backup and Recovery Market Share Distribution
ProductMarket Share (%)
Datto SIRIS0.2%
Hornetsecurity Altaro VM Backup0.9%
Other98.9%
Backup and Recovery
 

Featured Reviews

Kunal Kishor - PeerSpot reviewer
AI/ML Engineer at IT BY DESIGN
Backup platform has significantly improved recovery speed and reliability for critical outages
Instant Virtualization is the best feature of Datto SIRIS that we have liked so far, as it allows us to boot servers in minutes during outages. The use of Datto SIRIS has significantly improved our Recovery Time Objectives. We have been using other software like Veeam and Microsoft Backup as well, so we have found Datto quite competitive to them. Our experience has been good so far, our clients are satisfied, and we have been handling outages effectively. We have not had the opportunity to use the One-Click Disaster Recovery feature because the last time we experienced a phishing attack, it was resolved and did not escalate to a disaster scenario, so we did not need to use that feature. Datto SIRIS improves reliability by providing storage space that enhances overall dependability. The centralized dashboards in the Hero Reports feature have been most beneficial for our IT reporting needs. The Hero Reports feature provides extensive capabilities that include the specific points we need for our demonstration. Even if we want to use these features to train machine learning models, they are very useful for us, and we do not need to perform much work on the data to extract those features. It has helped in reducing disaster recovery testing hours because it has features that help us by monitoring malicious activities throughout the database and notifying us of any fluctuations in normal behavior. Datto SIRIS is good at assessing effectiveness regarding ransomware recovery, and it is competitive in the market. However, the only concern we have been thinking about is its pricing. The pricing of Datto SIRIS is more expensive than Veeam and Microsoft Backup. On the other hand, it provides many more options and much greater feasibility.
Asif Usmani - PeerSpot reviewer
Regional Sales Manager at S2
Lacks multi-platform support and physical infrastructure but excels in storage optimization
We use it for VM backup and Office 365 backup I find the solution to be user-friendly and easy to manage and deploy. It provides storage for Office 365, which is beneficial, and the deduplication technology is excellent, especially in optimizing storage capacity compared to others. In terms of…

Quotes from Members

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

Pros

"Datto SIRIS has changed my recovery time objectives significantly, as it is excellent, taking minimal time, with a simple and smoother interface that allows for a shorter backup process compared to other applications I have used, such as Commvault."
"Previously, three hours were spent on troubleshooting and everything, but now with Datto SIRIS, issues are resolved in half an hour or less."
"Datto SIRIS works out of the box and it is a key feature that we really appreciate."
"Instant Virtualization is the best feature of Datto SIRIS that we have liked so far, as it allows us to boot servers in minutes during outages."
"The best feature of Datto SIRIS is that we are just two clicks away from remoting into the client environment, and we can fetch all the information in one place."
"Datto SIRIS has positively impacted my organization by drastically reducing downtime, with recovery from server failures now taking just five to ten minutes."
"Since I started using Datto SIRIS, the time to recover data or servers has improved significantly; before, restoring a file or server was very long with the normal backup system, Datto reduced the time much more when I needed to recover a file or a machine."
"The ability to test the backups without having to manually mount the VHDs after restore allows us to check the integrity of the backups."
"Ability to restore to any host."
"It is an excellent product. It is easy to deploy, stable, and fast. Their support is excellent."
"The initial setup was simple and easy. Anyone without prior experience can install, configure, and use it."
"The interface is user-friendly and even if our tech isn't onsite, we can work with the owners to confirm that the data will be restored with no issues."
"Reverse Delta is Altaro proprietary backup deduplication technology. With Reverse Delta, the latest version of a file is always made available in its entirety, not as a delta file."
"Hornetsecurity Altaro VM Backup's most valuable features include its user-friendly interface and the ability to perform data compression updates, which enhance overall efficiency and effectiveness."
"Excellent compression and deduplication with off-site WAN backup included."
 

Cons

"In my opinion about Datto SIRIS, areas for improvement include increasing speed in recovery processes and strengthening security to enhance the product's overall effectiveness in backup and disaster management."
"The cost is higher compared to other platforms in the market like Veeam or Acronis."
"I was disappointed with the processing power and the storage capacity of the ALTO 5 device. Within two weeks of deploying it, I was getting emails that I need to upgrade it."
"For improvements in Datto SIRIS, I would suggest enhancing large-scale virtualization performance and providing more transparent pricing, as that is often complex for MSPs and end customers."
"The backup of the Mac OS solution in Datto SIRIS doesn't exist at this moment."
"I have not seen any reduction in disaster recovery testing hours from Datto SIRIS."
"Availability of physical server backup would be an added advantage."
"Hornetsecurity Altaro VM Backup could be improved in several areas, such as enhancing scalability features and possibly reducing the price."
"To improve Altaro, I would like to see the ability to choose more than one backup location at a time."
"The solution needs multi-platform support as it is currently only available for VMware and Hyper-V. It also lacks support for physical servers and workstations."
"Replication is not fast, the GUI could be more user-friendly, and technical support is lacking in Iran."
"The cloud backup and VMware support (now available in the latest releases), could do with some improvement."
"Improvement areas for Altaro VM Backup include enhancing backup and deduplication solutions for continuous operation and offering an all-in-one solution for hardware backup."
"The application could include a feature to install a set size of data, such as the ability to store a single application with all its registry information for easy transfer."
 

Pricing and Cost Advice

Information not available
"VMware is a little pricey, but it is a good solution and priced similar to other products."
"Altaro had the best prices and ROI in the whole bunch that we evaluated."
"No other product offers these features for this price. The ROI is great."
"​By implementing the solution at multiple locations, significant cost savings were achieved."
"The pricing is okay,"
"There is a free version for two VMs. I would advise to study the deployment environment well, prior to committing to order a license per host."
"Altaro VM Backup is affordably priced. It is a best value for its price and has almost every feature that an expensive, popular product offers."
"Its yearly maintenance fee is fairly high for me to renew for upgrades and support."
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Top Industries

By visitors reading reviews
Media Company
20%
Comms Service Provider
13%
Legal Firm
11%
Manufacturing Company
7%
Comms Service Provider
9%
Manufacturing Company
9%
Government
8%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise1
Large Enterprise1
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise4
Large Enterprise4
 

Questions from the Community

What is your experience regarding pricing and costs for Datto SIRIS?
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 valu...
What needs improvement with Datto SIRIS?
For improvements in Datto SIRIS, I would suggest enhancing large-scale virtualization performance and providing more transparent pricing, as that is often complex for MSPs and end customers. Faster...
What is your primary use case for Datto SIRIS?
My main use case for Datto SIRIS is for business continuity and disaster recovery, specifically for BCDR, data protection, and sometimes backups and failovers since I'm an MSP. In addition to my ma...
What do you like most about Hornetsecurity Altaro VM Backup?
The most valuable feature of Altaro VM Backup is its ability to backup and restore various types of data, including Active Directory, application servers, and SQL Server databases.
What is your experience regarding pricing and costs for Hornetsecurity Altaro VM Backup?
The pricing and licensing cost is challenging since most competitors offer cheaper pricing, making it difficult to penetrate the market with the current pricing strategy.
What needs improvement with Hornetsecurity Altaro VM Backup?
The solution needs multi-platform support as it is currently only available for VMware and Hyper-V. It also lacks support for physical servers and workstations. Additionally, they should add more p...
 

Also Known As

SIRIS
Altaro VM Backup
 

Overview

 

Sample Customers

Datapac, Dynamic Business Technologies, SAX Technology Advisors
Thomson Reuters, Microsoft, Amazon, Harvard University, MIT, Peugeot, Xerox
Find out what your peers are saying about Datto SIRIS vs. Hornetsecurity Altaro VM Backup and other solutions. Updated: January 2026.
881,114 professionals have used our research since 2012.