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Datto SIRIS vs Dell PowerProtect Data Domain comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 8, 2026

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
5.3
Dell PowerProtect Data Domain reduces storage needs and costs via deduplication, benefiting enterprises but less affordable for smaller entities.
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 a customer uses Dell PowerProtect Data Domain with a replication policy, they can replicate minimal data changes daily, removing headaches associated with the physical transfer of tapes.
Pre Sales Manager at a tech services company with 51-200 employees
One is less floor space in the data center and the ability to pack more data into the backup storage on Dell PowerProtect Data Domain as compared to the traditional backup storage.
Vice President - Information Technology Systems Engineering at a tech vendor with 10,001+ employees
The best part is the compression and deduplication feature.
DGM at Airtel Digital
 

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
7.4
Dell PowerProtect Data Domain's customer service is praised for knowledge and effectiveness, but response quality varies by location.
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
We feel that we are working with people who understand the technology and the historical patterns of this environment, and when we raise a support request, we have no doubt because it seems that we are working with a product engineer.
System Administrator at a financial services firm with 201-500 employees
Nowadays, we can connect directly to the Dell team and in a very minimal time, we can get the support from them.
Product Manager, Dell Client Solutions at Team Computers
It is an extension of your team itself, and I have been more than pleased with the support I have received from them.
Infrastructure Engineer & Director at a healthcare company with 10,001+ 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
6.5
Dell PowerProtect Data Domain offers scalability and integration, though some models face hardware limitations and require careful planning.
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
To unlock more storage, you need to pay for the licenses for the storage you already own.
Assistant Manager Senior Systems Administrator at a financial services firm with 1,001-5,000 employees
The scalability depends on the IT department's strategy.
Sr System Expert at a healthcare company with 10,001+ employees
Dell PowerProtect Data Domain is very scalable; it expands easily with new enclosures.
Storage Engineer at Comtrade Group
 

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
8.1
Dell PowerProtect Data Domain delivers reliable performance with minimal downtime, swiftly resolving rare hardware issues for consistent backup tasks.
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
We have never encountered issues such as data corruption with these systems.
Storage Engineer at Comtrade Group
I have not experienced any downtime, crashes, or performance issues with it.
IT Infrastructure And Telecom S GM at PHPC
I have been using it for up to three years with no upgrading or downtime.
Data Protection Engineer 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 enhancements in licensing clarity, security, cloud integration, cost-effectiveness, and improved UI, support, and interconnectivity for Dell PowerProtect.
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
Local support must be available in the country.
Head Of Systems Group at NCCPL
We can leverage writing NAS level backup into Dell PowerProtect Data Domain rather than utilizing any other software tools such as Networker.
Vice President - Information Technology Systems Engineering at a tech vendor with 10,001+ employees
Dell PowerProtect Data Domain represents the fastest and most reliable solution, ensuring great integration with backup software.
Storage Engineer at Comtrade Group
 

Setup Cost

Datto SIRIS offers fair pricing and seamless setup, but lengthy contracts and MSP upcharges might deter some SMB clients.
Dell PowerProtect Data Domain has high, complex pricing, making it less competitive for smaller companies compared to Veritas and Commvault.
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
It is almost four times the earlier price.
Head of Sales and Operations at New Horizon Computers
For small clients, it is very expensive.
Specialist Senior N2 at Entelgy
If your data grows faster than expected or your deduplication ratios are lower than anticipated, you will face unbudgeted, expensive capacity expansion licenses.
Server Administrator at a outsourcing company with 51-200 employees
 

Valuable Features

Datto SIRIS offers reliable, efficient backup and recovery with user-friendly features, excellent security, support, and competitive cost-effectiveness.
Dell PowerProtect Data Domain offers efficient deduplication, fast backups, high storage efficiency, and strong security, enhancing data protection and management.
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
The most valuable feature of Dell PowerProtect DD (Data Domain) is its deduplication capability.
Technical manager at Advanced Computer Technology (ACT)
Dell PowerProtect DD (Data Domain) is highly consistent, durable, easy to install, scalable, and compatible with any software today.
Head of Sales and Operations at New Horizon Computers
The most beneficial features in the product are compatibility, which is the most valuable function.
Head Of Systems Group at NCCPL
 

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)
Dell PowerProtect Data Domain
Ranking in Disk Based Backup Systems
1st
Average Rating
8.6
Reviews Sentiment
6.6
Number of Reviews
102
Ranking in other categories
Deduplication Software (1st)
 

Mindshare comparison

As of August 2026, in the Disk Based Backup Systems category, the mindshare of Datto SIRIS is 3.1%. The mindshare of Dell PowerProtect Data Domain is 33.3%, 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 (%)
Dell PowerProtect Data Domain33.3%
Datto SIRIS3.1%
Other63.6%
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.
Branko Cirovic - PeerSpot reviewer
Storage Engineer at Comtrade Group
Provides seamless backup integration and long-term reliability for enterprise data protection
The price is quite high; this product is not considered cheap. Additionally, if you use higher availability boxes, they also come at a premium price. However, they provide business continuity, which is the main reason why companies invest in this solution. Tape is slow; when restoring several virtual machines or databases amounting to several terabytes, Dell PowerProtect Data Domain represents the fastest and most reliable solution, ensuring great integration with backup software. If a customer has limited budget constraints, they may opt for cheaper external storage comprised of just a bunch of disks and utilize it for backup, as backup is not a business-critical service. However, I see great value in Dell PowerProtect Data Domain because it is fully automated, features great integration with backup software, and provides good value for money. I would rate software support as a ten, while I would give hardware support a seven. I never give any product a perfect score; I think Dell PowerProtect Data Domain deserves a nine. The only minor problems are the certificate issue and the price. These certificate issues are quite rare and mainly arise when we forget to restart and upgrade the box for several years.
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Top Industries

By visitors reading reviews
Construction Company
15%
Manufacturing Company
14%
Outsourcing Company
10%
Financial Services Firm
9%
Financial Services Firm
10%
Manufacturing Company
10%
Computer Software Company
8%
Outsourcing Company
7%
 

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 Business41
Midsize Enterprise26
Large Enterprise44
 

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 is your primary use case for Dell EMC PowerProtect DD (Data Domain)?
My main use case for Dell PowerProtect Data Domain is as a data backup target.
What is your experience regarding pricing and costs for Dell PowerProtect DD (Data Domain)?
Pricing, setup cost, and licensing are not my areas of expertise, as I mainly focus on implementation engineering.
What needs improvement with Dell PowerProtect DD (Data Domain)?
To improve Dell PowerProtect Data Domain, I would suggest making it cheaper. I would like to see the ability to use more back end data ports as a new feature.
 

Also Known As

SIRIS
DataDomain, Dell EMC Data Domain, PowerProtect Data Domain
 

Overview

 

Sample Customers

Datapac, Dynamic Business Technologies, SAX Technology Advisors
The US Army, City of Houston, Lloyds TSB, TiVo, Teck, Ingram Entertainment, The New York Mets
Find out what your peers are saying about Datto SIRIS vs. Dell PowerProtect Data Domain and other solutions. Updated: August 2026.
908,800 professionals have used our research since 2012.