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Arcserve OneXafe vs Datto SIRIS 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

Arcserve OneXafe
Ranking in Backup and Recovery
54th
Average Rating
6.0
Reviews Sentiment
4.6
Number of Reviews
2
Ranking in other categories
File and Object Storage (24th)
Datto SIRIS
Ranking in Backup and Recovery
7th
Average Rating
9.0
Reviews Sentiment
5.3
Number of Reviews
10
Ranking in other categories
Disk Based Backup Systems (3rd), Disaster Recovery as a Service (3rd), Disaster Recovery (DR) Software (10th), MSP Backup (2nd)
 

Mindshare comparison

As of May 2026, in the Backup and Recovery category, the mindshare of Arcserve OneXafe is 0.5%, up from 0.1% compared to the previous year. The mindshare of Datto SIRIS is 0.6%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Backup and Recovery Mindshare Distribution
ProductMindshare (%)
Datto SIRIS0.6%
Arcserve OneXafe0.5%
Other98.9%
Backup and Recovery
 

Featured Reviews

Sergio Itikawa - PeerSpot reviewer
Software Solutions Architect at SPEData
Has improved data reliability while requiring better pricing and localized support
The most valuable features of Arcserve OneXafe are improving persistent data, which I believe is very important. I use other products too, not only Arcserve OneXafe; we use TrueNAS as well. I have utilized Arcserve OneXafe's data deduplication feature. It helps my storage efficiency significantly. The product satisfaction with this product helps with storage efficiency. Regarding Arcserve OneXafe's immutable object storage helping against ransomware, the call was not clear, and I had difficulty listening to what was discussed. Arcserve OneXafe improves precision of data. I have used Arcserve OneXafe's continuous data protection. This is beneficial for operational continuity because we use it constantly. I have no objections to Arcserve OneXafe technology; I think that is very good.
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.

Quotes from Members

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

Pros

"The simplicity and the ability to perform small backups are the most effective features for data protection in Arcserve OneXafe."
"The simplicity and the ability to perform small backups are the most effective features for data protection in Arcserve OneXafe."
"The most valuable features of Arcserve OneXafe are improving persistent data, which I believe is very important, and I have utilized Arcserve OneXafe's data deduplication feature, which helps my storage efficiency significantly."
"Previously, three hours were spent on troubleshooting and everything, but now with Datto SIRIS, issues are resolved in half an hour or less."
"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."
"The effectiveness of Datto SIRIS in ransomware recovery is fantastic; I would say it's the best, hands down."
"Definitely, the return on investment has been massive."
"Datto SIRIS has positively impacted my organization by drastically reducing downtime, with recovery from server failures now taking just five to ten minutes."
"Datto SIRIS works out of the box and it is a key feature that we really appreciate."
"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."
"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."
 

Cons

"The price is not the best; it is too high. It's not the best solution in terms of price, although the solution itself is good."
"The price is not the best; it is too high."
"Arcserve OneXafe is not used in many cases in the market that we work in."
"The backup of the Mac OS solution in Datto SIRIS doesn't exist at this moment."
"The pricing offered to MSPs for Datto SIRIS is okay, but the ability for MSPs, their upcharge when it comes down to small, medium businesses, SMB clients, is actually putting Datto out of the market for SMB clients, especially with the ability to purchase Dropbox and all these cloud-based storage solutions now."
"I have not seen any reduction in disaster recovery testing hours from Datto SIRIS."
"The cost is higher compared to other platforms in the market like Veeam or Acronis."
"Cost is a consideration, but in general, we are fairly happy with the value."
"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."
"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."
"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."
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Top Industries

By visitors reading reviews
No data available
Construction Company
14%
Manufacturing Company
12%
Financial Services Firm
10%
Media Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise1
Large Enterprise1
 

Questions from the Community

What is your experience regarding pricing and costs for Arcserve OneXafe?
Regarding pricing and setup cost, my client said all the options are very expensive. Price is always a key point for Brazilian clients, especially in retail; first of all is the cost, so the operat...
What needs improvement with Arcserve OneXafe?
There are areas that could be improved. We use other technologies for persistent data as well. So we depend on the options that create what my clients prefer in terms of technology. Arcserve OneXaf...
What is your primary use case for Arcserve OneXafe?
The main use case for this product is that I use a backup repository for persistent data. I use it exclusively for this purpose. The industry I use this for is financial, specifically Brazilian ret...
What is your experience regarding pricing and costs for Datto SIRIS?
The pricing offered to MSPs for Datto SIRIS is okay, but the ability for MSPs, their upcharge when it comes down to small, medium businesses, SMB clients, is actually putting Datto out of the marke...
What needs improvement with Datto SIRIS?
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 ent...
What is your primary use case for Datto SIRIS?
The use cases for Datto SIRIS that we set up are that we back up all emails for 365, certain devices such as servers and data stores that are high priority. We ensure all of those are backed up, an...
 

Also Known As

StorageCraft OneBlox
SIRIS
 

Overview

 

Sample Customers

Sonic, Amazon, Kawasaki, Callaway, Drake University, Mazda, Thales, California Highway Patrol, Guggenheim, Bruker, NASA, Oregon.gov
Datapac, Dynamic Business Technologies, SAX Technology Advisors
Find out what your peers are saying about Arcserve OneXafe vs. Datto SIRIS and other solutions. Updated: April 2026.
894,738 professionals have used our research since 2012.