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Cohesity Data Cloud 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:
 

ROI

Sentiment score
3.3
Cohesity Data Cloud users reported cost savings, time efficiency, enhanced security, scalability, and improved ROI through simplified data management and reduced downtime.
Sentiment score
3.4
Datto SIRIS significantly reduces management needs and costs, enhancing efficiency and performance for businesses reliant on its solution.
If I find myself stuck in a cyber recovery situation, this tool can help me avoid spending my money on ransom payments.
Technical Architect at a tech vendor with 10,001+ employees
The level of confidence that Cohesity Data Cloud delivers to the clients is worth that cost.
Senior Manager Advisory Services at Optimum Online (Cablevision Systems)
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
 

Customer Service

Sentiment score
7.2
Cohesity Data Cloud customer service is responsive and reliable, though improvement is needed in legacy systems and issue resolution speed.
Sentiment score
6.8
Datto SIRIS customer service is highly rated for its speed, effectiveness, and reliable support during maintenance and recovery processes.
issues with Cohesity Data Cloud have not been encountered, suggesting a robust service.
Evangelist / CTO at fgnext
They need to work faster to meet client requirements, especially when business is affected.
Technical Lead at Cognizant
They probably upstaffed and made sure their knowledge was more up-to-date.
Owner at hq-12b
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
 

Scalability Issues

Sentiment score
7.4
Cohesity Data Cloud offers seamless scalability and performance improvements, simplifying expansion with flexible resource adjustments and enhancing ROI.
Sentiment score
4.9
Datto SIRIS offers flexible scalability, with options varying by provider, allowing easy upgrades, but older versions may limit growth.
Scaling depends on subscription levels - when customers exceed their subscribed storage capacity, they can pay Cohesity to scale the resources.
Subject Matter Expert at Engage IT Services Pvt Ltd
There are no issues with scalability on the cloud end.
Technical Lead at Cognizant
It's easy to add additional nodes to a current existing cluster, making it quite easy to expand.
Owner at hq-12b
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
 

Stability Issues

Sentiment score
7.6
Cohesity Data Cloud is praised for reliability and efficiency, with stability rated exceptional despite minor hardware and support issues.
Sentiment score
7.2
Datto SIRIS is reliable and stable, automating backups to prevent failures without user-reported downtime or outages.
Compared to other tools, it is very efficient and simple to learn.
Technical Lead at Cognizant
I couldn't find anything negative about Cohesity Data Cloud specifically.
Sr. Engineer at a retailer with 501-1,000 employees
Cohesity Data Cloud is quite reliable.
Subject Matter Expert at Engage IT Services Pvt Ltd
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
 

Room For Improvement

Cohesity Data Cloud users desire improved documentation, support, and integration, plus cost-effectiveness, security, and enhanced functionality for various needs.
Datto SIRIS struggles with Mac OS backup, performance, high costs, and requires faster recovery and better integration tools.
Issues such as ransomware protection and fixing vulnerabilities should be prioritized.
Sr. Engineer at a retailer with 501-1,000 employees
Cohesity Data Cloud scans backups by default for ransomware and malware, sending notifications if there are any security concerns or compromised systems.
Subject Matter Expert at Engage IT Services Pvt Ltd
The primary drawback is the need to transfer large amounts of data to the cloud via an internet connection, requiring significant bandwidth.
Evangelist / CTO at fgnext
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
 

Setup Cost

Cohesity Data Cloud offers value with strong security, structured pricing, and flexibility, despite higher costs than some competitors.
Datto SIRIS offers fair pricing and seamless setup, but lengthy contracts and MSP upcharges might deter some SMB clients.
Cohesity Data Cloud is more costly in the long term compared to physical tapes.
Evangelist / CTO at fgnext
Comparatively, compared to IBM and Commvault, Cohesity Data Cloud offers the best deal for my environment.
Sr. Engineer at a retailer with 501-1,000 employees
All organizations are very interested in as-a-service model where they do not pay upfront cost, but they only get the services and pay for what they use as they use it.
Senior Manager Advisory Services at Optimum Online (Cablevision Systems)
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
 

Valuable Features

Cohesity Data Cloud provides scalable, secure data protection with efficient storage, easy integration, and comprehensive management for MSPs.
Datto SIRIS offers reliable, efficient backup and recovery with user-friendly features, excellent security, support, and competitive cost-effectiveness.
It replicates data to the cloud in a tamper-proof manner, offering protection against ransomware attacks since it is not under administrative control.
Evangelist / CTO at fgnext
They have a feature called DataSock, which enhances data protection.
Technical Architect at a tech vendor with 10,001+ employees
The initial deployment of Cohesity Data Cloud, from my experience, is easy.
Sr. Engineer at a retailer with 501-1,000 employees
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
 

Categories and Ranking

Cohesity Data Cloud
Ranking in Backup and Recovery
18th
Average Rating
9.0
Reviews Sentiment
6.7
Number of Reviews
13
Ranking in other categories
Cloud Backup (14th), Data Management Platforms (DMP) (6th), AI Data Analysis (11th)
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 Cohesity Data Cloud is 1.1%, up from 0.4% 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%
Cohesity Data Cloud1.1%
Other98.3%
Backup and Recovery
 

Featured Reviews

ME
Senior Manager Advisory Services at Optimum Online (Cablevision Systems)
Has provided strong data protection and unified access while streamlining backup operations
Cohesity Data Cloud is not unique in this area. There are a couple of other vendors who are playing in the same area. They provide some sort of isolation for the protected data that makes it very difficult, almost impossible to tamper with once it is stored on the platform. One of the major issues of ransomware attacks is that they happen in the background and it is too late after being hit. Giving a hard time for bad actors to access the data provides more immunity for your data from ransomware attacks. All organizations are very interested in as-a-service model where they do not pay upfront costs, but only get the services and pay for what they use. Converting from CapEx to OpEx is the ultimate goal for any financial manager in any organization. The model uses some sort of object storage for the backup data and contents, which gives a better level of safety than the traditional file system because normally the object storage is not subject to alteration. The only concern I have with cloud implementation is that if you have a presence on-premises, trying to use the cloud may become a performance challenge. It is a perfect situation for workloads that live in the cloud. The way I design things is we should not send data across the WAN to the cloud if it is a large volume that could potentially affect performance. A cloud solution is ideal for a cloud workload from Cohesity Data Cloud perspective. It is best to have some sort of local presence of a repository to do the backup using LAN performance. Then we can always send or upload the data to the cloud without impacting the actual backup window. Support for additional platforms and the option to do multi-tier performance would be beneficial. For example, if I have three types of workloads - SAP database, Oracle database, and SQL database - each with different backup window requirements, the ability to tier performance to meet these specific needs would be perfect for the actual workload and meeting the availability requirements of each application domain. The general perception is if it is not broken, do not fix it. In most cases, organizations do not see value for security until they are hit with something bad. With ever-increasing threats and risks of ransomware and data theft, the problem is becoming more obvious. Looking at what is happening in the market and seeing organizations being hit by security threats, the level of loss of services and client dissatisfaction makes security investment worthwhile. There is no real tangible ROI for security, but considering the potential of losing data forever or having it exposed unnecessarily to the market, it is worth the investment. The bad actors and risks are always reinventing themselves, so we must reinvent our security posture.
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.
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Top Industries

By visitors reading reviews
Manufacturing Company
14%
Financial Services Firm
14%
Construction Company
11%
University
6%
Construction Company
14%
Manufacturing Company
12%
Financial Services Firm
10%
Media Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise1
Large Enterprise7
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise1
Large Enterprise1
 

Questions from the Community

What is your experience regarding pricing and costs for Cohesity DataPlatform?
All organizations are very interested in as-a-service model where they do not pay upfront cost, but they only get the services and pay for what they use as they use it. Converting from CapEx to OpE...
What needs improvement with Cohesity Imanis Data?
Cohesity Data Cloud is not unique in this area. There are a couple of other vendors who are playing in the same area. They provide some sort of isolation for the protected data that makes it very d...
What is your primary use case for Cohesity Imanis Data?
I have been in a relationship with Cohesity Data Cloud for more than five years now. I have used Helios in the past.
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

Imanis Data, DataPlatform, Cohesity Helios
SIRIS
 

Overview

 

Sample Customers

Navis, 1st Security Bank, Brown University, WestLotto
Datapac, Dynamic Business Technologies, SAX Technology Advisors
Find out what your peers are saying about Cohesity Data Cloud vs. Datto SIRIS and other solutions. Updated: April 2026.
893,244 professionals have used our research since 2012.