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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:
 

Categories and Ranking

Cohesity Data Cloud
Ranking in Backup and Recovery
19th
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
18th
Average Rating
9.0
Reviews Sentiment
5.2
Number of Reviews
9
Ranking in other categories
Disk Based Backup Systems (3rd), Disaster Recovery as a Service (4th), Disaster Recovery (DR) Software (12th), MSP Backup (4th)
 

Mindshare comparison

As of March 2026, in the Backup and Recovery category, the mindshare of Cohesity Data Cloud is 0.9%, up from 0.3% compared to the previous year. The mindshare of Datto SIRIS is 0.4%, 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 SIRIS0.4%
Cohesity Data Cloud0.9%
Other98.7%
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.

Quotes from Members

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

Pros

"It has excellent integration for virtualization, which means we can easily protect VMs, virtual machines, which consists mainly of snapshot backups that are quite easy to recover."
"Our data center size occupancy for Cohesity appliance is reduced by 70% when we installed Cohesity."
"It's very regimented and fast. It does local backup, cloud backup, long-term coverage, and disaster recovery."
"We use Cohesity Helios primarily in our data management strategy for backup and reporting."
"I find the most important feature to be data protection."
"One of the most outstanding features is forever incremental, which provides immutable backups."
"My favorite feature of Cohesity Data Cloud is the setup, as it is very fast compared to other solutions; I have worked in different clouds, and Cohesity Data Cloud stands out as superior."
"Cohesity Data Cloud is user-friendly, and anyone can use this tool; the support is really good, especially the web support, and the dashboard and everything are good."
"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."
"The effectiveness of Datto SIRIS in ransomware recovery is fantastic; I would say it's the best, hands down."
"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."
"Datto SIRIS has positively impacted my organization by drastically reducing downtime, with recovery from server failures now taking just five to ten minutes."
"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."
"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

"They still have quite some way to go for improving their agents."
"Sometimes the support team does not provide proper assistance during critical issues from the cloud end."
"The primary drawback is the need to transfer large amounts of data to the cloud via an internet connection, requiring significant bandwidth."
"There is limited support for legacy systems, which is something that could be improved."
"The limitation that I see in Cohesity is that the minimum sized node is 36 terabytes, which is more than a small customer needs."
"The downside of Cohesity Data Cloud is that it is not supporting a legacy environment."
"In terms of functionality, Helios has been effective, but sometimes it doesn't show the exact cluster name for backups."
"It has never been touted as a tier-one storage platform, and that would be a benefit. They are currently working on solving that issue."
"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."
"The backup of the Mac OS solution in Datto SIRIS doesn't exist at this moment."
"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 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."
"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."
 

Pricing and Cost Advice

"Competing products sometimes use deceptive marketing to make their products seem a lot cheaper. Comparing apples-to-apples, DataPlatform wins out."
"It's priced properly for the market."
"Regarding pricing, it's very costly and I rate it a four."
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Top Industries

By visitors reading reviews
Manufacturing Company
18%
Financial Services Firm
14%
University
7%
Marketing Services Firm
6%
Manufacturing Company
16%
Media Company
15%
Comms Service Provider
10%
Legal Firm
8%
 

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 Business6
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: March 2026.
884,873 professionals have used our research since 2012.