Synology DSM vs Zerto comparison

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Synology DSM

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Executive SummaryUpdated on Sep 11, 2024

Zerto and Synology DSM compete in disaster recovery and data management. Zerto has the upper hand in specialized disaster recovery features, while Synology DSM offers more versatile functionalities.

Features: Zerto provides robust disaster recovery, data replication, and protection with minimal data loss. Synology DSM offers extensive storage management, multimedia capabilities, and a comprehensive suite of apps.

Room for Improvement: Zerto needs better user training and more intuitive management tools. Synology DSM should improve its disaster recovery features, simplify setup processes, and enhance user guidance.

Ease of Deployment and Customer Service: Zerto's setup is straightforward but requires technical expertise, with customer service needing more proactive support options. Synology DSM's deployment is more complex but efficient once set up, with customer service noted for delayed response times.

Pricing and ROI: Zerto's higher setup costs provide substantial ROI through reliable data protection, making it ideal for critical environments. Synology DSM offers competitive initial pricing and strong ROI through versatile features, especially for small to medium-sized businesses.

To learn more, read our detailed Synology DSM vs. Zerto Report (Updated: March 2025).

Synology DSM vs. Zerto

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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

Synology DSM

Ranking in Backup and Recovery

18th

Average Rating

9.0

Reviews Sentiment

8.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Zerto

Ranking in Backup and Recovery

2nd

Average Rating

9.0

Reviews Sentiment

7.2

Number of Reviews

299

Ranking in other categories

Cloud Migration (3rd), Cloud Backup (2nd), Disaster Recovery (DR) Software (2nd)

Mindshare comparison

As of April 2025, in the Backup and Recovery category, the mindshare of Synology DSM is 1.8%, up from 0.6% compared to the previous year. The mindshare of Zerto is 3.0%, down from 3.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Backup and Recovery

Featured Reviews

Michael Adejoh

Solutions Manager at Excel Connect Ventures

Reliable and cost-effective

One area where Synology DSM could improve is in enhancing its ability to detect and respond to security threats during backups and replication. Currently, it lacks the capability to automatically stop backups if it detects a virus or suspicious network activity, as some third-party solutions can. Having AI-driven analytics to identify anomalies and halt backups during potential attacks, along with notifications to administrators, would be valuable. Additionally, providing a dashboard for monitoring the backup environment's security would be a beneficial feature. These improvements would help address security concerns and make Synology more competitive in this aspect.

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Sachin Vinay

Assistant Manager-Networks at Amrita

Leverage disaster recovery with reliable support and cost-effective future-proof features

Zerto is straightforward to implement because it only requires the installation of an agent on the VMs designated for migration. A service, typically a VM, must also be deployed at the disaster recovery location. This entire process is simple and can be completed within three days. Zerto's near-synchronous replication occurs every minute, allowing for highly granular recovery points. This means that even if interruptions or malware disruptions occur within that minute, Zerto can restore to the last known good state, effectively recovering the entire setup to the latest backup. This capability ensures high data security and minimizes potential data loss. One of the main benefits of implementing Zerto is its data compression, which significantly reduces the load on our IPsec VPN. Zerto compresses data by 80 percent before transmitting it across the VPN, minimizing the data transferred between geographically dispersed locations. This compression and subsequent decompression at the destination alleviate the strain on the VPN, preventing overload and ensuring efficient data synchronization. Zerto simplifies malware protection by integrating it into its disaster recovery and synchronization features. This comprehensive approach eliminates the need for separate antivirus setups in virtual machines and applications. It streamlines our security measures and removes the need for additional software or solutions, resulting in an excellent return on investment. Zerto's single-click recovery solution offers exceptional recovery speed. Through the user interface, a single click allows for a complete restoration from the most recent backup within two to three minutes, enabling rapid recovery and minimal downtime. Zerto's Recovery Time Objective is excellent. In the past, if a virtual machine crashed, we would recover it from a snapshot, which could take one to two hours. With Zerto, the recovery process takes only five minutes, and users are typically unaware of any disruption. This allows us to restore everything quickly and efficiently. Zerto has significantly reduced our downtime. When malware affects our data, Zerto immediately notifies us and helps us protect other applications, even those not yet implemented with Zerto. By monitoring these applications, we can quickly identify and address any potential malware spread, minimizing downtime across our systems. Zerto significantly reduces downtime and associated costs during disruptions. Our services are unified, so in the event of a disruption without Zerto, even a half-day disruption would necessitate offline procedures. This would lead to increased manpower, service delays, and substantial financial losses due to interrupted admissions and other critical processes. By unifying service processes, Zerto minimizes the impact of outages. Zerto streamlines our disaster recovery testing across multiple locations by enabling efficient failover testing without disrupting live services. Traditionally, DR testing required downtime of critical systems, but Zerto's replication and failover capabilities allow us to test in parallel with live operations. This non-disruptive approach ensures continuous service availability while validating our DR plan, even in scenarios like malware attacks, by creating a separate testing environment that mirrors the live setup. This comprehensive testing provides confidence in our ability to handle real-world incidents effectively. This saves us over 60 percent of the time. Zerto streamlines system administration tasks by automating many processes, thereby reducing the workload for multiple administrators. This allows them to focus on other university services that require attention and effectively reallocate support resources from automated tasks to those requiring more dedicated management. Zerto is used exclusively for our critical services, providing up to a 70 percent improvement in our IT resilience.

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Quotes from Members

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

Pros

"The solution's most valuable feature stems from its ease of use, making it the tool's most interesting part."

"The most valuable features of Synology DSM are its security and connectivity."

"The most valuable aspect is its ability to handle multiple disks."

"Because of its simplicity and the wide array of features it offers, I would recommend DSM for both tech-savvy individuals and those who prefer a straightforward file-serving solution."

"It offers a variety of software options through its package center, allowing users to customize their NAS device to serve multiple purposes."

"The product performs well. It is easy to use and implement."

"The most valuable features are the basic storage, file management, Btrfs file system, and built-in backups that come with the solution."

"The most valuable feature of the solution is that it serves as a backup for our company's virtual machine."

More Synology DSM pros

"The disaster recovery features are the best I've found."

"The initial setup was very straightforward and easy. We were able to start replication within minutes of the initial setup."

"Zerto has helped us reduce overall DR testing in our company. What used to take a month I can do in less than two days."

"It is very user-friendly. There is no wondering about what a feature does. It is easy to use."

"Zerto is truly inspiring."

"I love Zerto's near-synchronous replication. I've been using Zerto for three years at my current employer and many years before that. It's been great. Anywhere I've used it, it's made the failover process a lot easier so that pretty much anybody can do it. This feature is our number one priority because we can keep our critical apps running if we have a failure, or even if we have a misconfiguration, it's very easy to recover something quickly."

"We can spin up our environment in DR without affecting production, which is probably the biggest feature for us. We have the ability to do passive testing. We can even test scenarios, such as installing software or changing software. We can make modifications without affecting our production environment. So, the test functionality of being able to test the failover solution and being able to bring up our virtual machines in a test mode is the biggest benefit."

"Journaling is by far the most valuable feature. We have used it several times for customers who have gotten ransomware and had to do a rollback. Having the right time period was important. Some of them had their backups encrypted. So, they didn't encrypt the Zerto machine seven days previously, and we were able to bring that back up."

More Zerto pros

Cons

"Synology DSM's user interface is not quite intuitive."

"Users may lose their data if they don't configure the solution properly."

"The product's only shortcoming is pricing, as it is an expensive solution."

"There's a surveillance application that allows you to connect IP cameras and stream footage to Synology and it is a great feature, but it's not always clear that adding more cameras may require purchasing additional licenses."

"Synology DSM is a good enough solution for small and medium companies, but I have not seen a big configuration of the solution for a big organization."

"One area where Synology DSM could improve is in enhancing its ability to detect and respond to security threats during backups and replication."

"The platform could be much more cost-effective and flexible for integrating third-party products."

"Even though Synology provides a backup solution, it does not recognize the VM movement across cluster hosts."

More Synology DSM cons

"I would like for Zerto to improve reporting, provide more data on individual VMs and their performance, and maybe expand into backup with the ability to scan for malware or offline scanning."

"Its initial setup can be better. It looks easy, but if you do not have things in the right place, it is not as easy as it looks. Some of the instructions were not clear. They were a little bit confusing. For example, while setting up SSH initially, it was a little bit unclear if I needed to use a regular credential or some other credential. This was one of the things that was a little fuzzy, and we had to get somebody else involved to help us out."

"From the technical side, there can be a little bit more PowerShell integration. I know it leverages APIs, but people still use PowerShell. Some people would rather use PowerShell if that is an option."

"You can create a VPG and put anywhere from one to 17 servers in that group. We build them one by one. If something changes in VMware, it would be nice to be able to go in and change that VPG, having it update without messing up. When you change them now, it only applies to the copies from the points when you changed it. I wish it would purge that older data from the past. Right now, we have to build a new VPG, which is not a big deal as it is just a few screens."

"Zerto requires these thick provision walls for virtual machines that are always running."

"The tech support on my latest issue wasn't so great. I had to figure a lot of stuff out myself. It could be that I had a Level 1 tech who was new or something, but it seemed like the tech was spitballing, which does not help me."

"Zerto is too reliant on VMware's vCenter. It's tough to upgrade, move, or do anything related to virtual servers with vCenter."

"Some of the features need improvement. One would be, as you're creating a Move group or a VPG, as they call it, it should either autosave or have the ability so that you can save it for coming back to later because if the setup times out, you lose all your work. That would be a nice improvement to have."

More Zerto cons

Pricing and Cost Advice

"It is quite an affordable solution."

"The solution’s pricing is neither cheap nor expensive."

"Synology DSM is a free tool."

"The pricing varies widely, catering to a broad range of needs."

"Synology DSM is a cheap solution."

"The licensing part of the solution is free. The hardware is more expensive than the other solutions in the market, but it's okay in the long run."

"The price of the solution is very good."

"It's a little bit expensive."

"I think everything can be cheaper. Pricing limited our ability to use Zerto as much as we'd like, but that's not why we haven't adopted it as our primary backup solution."

"Obviously, it would be nice to have it for free. Nevertheless, a lot of effort has gone into making it a top-notch product. An excellent product with expert support is never going to be cheap. I think it's fairly priced for what it does and the benefit it brings to our business."

"Pricing is one area where there could be some improvement. We would like to see a consumption model that would charge in a DR scenario, where you're failing over and consuming those resources, instead of a per-protected-node model. Or it could be a model based on the amount of storage space you're protecting."

"Licensing is VM based so you can buy packages or single VM. Price is not low but the power of application is high, so you will get your money back."

"It was a little bit expensive. It took a long time for us to get DR for our workstations. It's one thing when you have 15 servers, but when we needed to bring on almost another 200 users, and each was the same price as the servers, it was too expensive. But Zerto worked with us and gave us a solution that was pretty decent in terms of price."

"Zerto is expensive but offers many features that make it competitive."

"The pricing is fair."

More Zerto pricing and cost advice

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Comparison Review

it_user159711

Architect at a tech services company with 51-200 employees

Nov 9, 2014

VMware SRM vs. Veeam vs. Zerto

Disaster recovery planning is something that seems challenging for all businesses. Virtualization in addition to its operational flexibility, and cost reduction benefits, has helped companies improve their DR posture. Virtualization has made it easier to move machines from production to…

Read full review

Top Industries

By visitors reading reviews

Computer Software Company

14%

Government

Manufacturing Company

Comms Service Provider

Computer Software Company

22%

Financial Services Firm

11%

Manufacturing Company

Healthcare Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

What do you like most about Synology DSM?

The most valuable features of Synology DSM are its security and connectivity.

What is your experience regarding pricing and costs for Synology DSM?

The solution’s pricing is neither cheap nor expensive.

What needs improvement with Synology DSM?

Users may lose their data if they don't configure the solution properly.

What advice do you have for others considering Oracle Data Guard?

Ik fluister:VM Host Oracle en DataGuard hebben we per toeval vervangen door Zerto :-) tijdens de Zerto implementatie en VPG werden de Host Data in write-ack Block-Level gerepliceerd. Qua licentie 1...

What do you like most about Zerto?

Its ability to roll back if the VM or the server that you are recovering does not come up right is also valuable. You have the ability to roll back a few seconds or a few minutes. The rollback feat...

What is your experience regarding pricing and costs for Zerto?

Zerto is definitely more costly compared to its competitors, such as VMware Site Recovery Manager. It may not be suitable for small and medium-sized industries.

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Compared 8% of the time

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Product Reports

Synology DSM

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Also Known As

Synology DiskStation Manager (DSM)

Zerto Virtual Replication

Overview

Synology DSM (DiskStation Manager) is a comprehensive software platform designed for Synology NAS (Network Attached Storage) devices. It serves as the operating system for these devices, providing a wide range of features and functionalities.

The primary use case of Synology DSM is to centralize and manage data storage for organizations. It allows businesses to store, access, and share files securely across multiple devices and platforms. With its intuitive user interface, DSM simplifies the management of data, making it easy to create shared folders, set access permissions, and monitor storage usage.

One of the most valuable functionalities of Synology DSM is its robust data protection capabilities. It offers various RAID configurations, including SHR (Synology Hybrid RAID), which ensures data redundancy and safeguards against drive failures. DSM also supports advanced backup and disaster recovery solutions, such as Snapshot Replication and Hyper Backup, enabling organizations to protect their critical data effectively.

Furthermore, Synology DSM provides a wide range of productivity and collaboration tools. It offers applications like Synology Drive, which allows seamless file synchronization across devices, and Synology Office, a web-based suite for document editing and collaboration. DSM also supports various third-party applications, including popular cloud services like Dropbox and Google Drive, enabling organizations to integrate their existing workflows seamlessly.

Synology

Zerto is used for disaster recovery, business continuity, data migration, and ransomware recovery, providing continuous data protection and near real-time replication. Valued for ease of use, efficient failover processes, and versatile integration, it enhances organizational efficiency, reduces errors, and boosts productivity.

Sample Customers

Information Not Available

United Airlines, HCA, XPO Logistics, TaxSlayer, McKesson, Insight Global, American Airlines, Tencate, Aaron’s, Grey’s County, Kingston Technologies

Synology DSM vs. Zerto