We compared Nasuni and Zerto across several parameters based on our users' reviews. After reading the collected data, you can find our conclusion below:
Comparison Results: Nasuni is highly regarded for its storage capabilities, simplicity, scalability, and security features. However, it may require additional assistance during setup and could improve in terms of platform support and user-friendliness. Conversely, Zerto receives praise for its continuous data protection, quick recovery, ease of use, and integration with VMware. Its initial setup is straightforward, but some users express the need for enhancements in licensing structure and support. Nasuni prioritizes storage and IT operations, while Zerto specializes in data protection and disaster recovery.
"The most important feature is that things are backed up automatically in AWS. We have a lot of remote sites where there is a tiny server onsite and, in a lot of cases, we really don't have to back them up because the data is automatically copied to AWS. The cloud replication is the most useful functionality for us."
"Snapshot backup is most valuable. It's quick and easy to use. It's controlled only by an administrator, which is very good. It takes 10 seconds to back up a spreadsheet of three or four megabytes."
"Nasuni offers us a single platform with a 360-degree view of our file data, which is definitely important to us. It simplifies IT operations tremendously. Because it is taking continuous snapshots, it eliminates a lot of work that was done previously when trying to manage backing up and restoring data files."
"It has the ability to do end-user recovery, or a user can simply contact an admin who can perform a recovery from the management console. The versioning has simplified everything. Now we don't have to worry about those components."
"The most valuable feature is the storage in that it only keeps the last-used data locally, while everything else is backed up to the cloud. That way, we never really have to worry about file space in each office or the replication to the other file servers for DR."
"The nice thing about Nasuni storage is that it is immutable. This means the data is only written once. So, you never modify the files. When you write a file out to the storage, it doesn't modify it when you change it. The technology knows how to figure out what the difference is between the original file write and what the changes are. Therefore, it only saves the changes."
"I can see who is logging in on files from all over the globe. For example, if a file is locked, maybe a user in Shanghai has locked files or something, I can see that from the Management Console, then unlock the file."
"The most valuable feature is that we have redundancy in our data. It's nice to know that it is cached both locally on the filters, as well as stored on that cloud."
"It reduced the time for DR tests from the infrastructure side. Being able to get our work done in a matter of a couple of minutes so the app teams can get to work and can do their testing has been significant."
"The most valuable feature is Zerto's ability to precopy data to a remote destination prior to the actual live migration period. That saves us a lot of time and has been very helpful. For example, if we had migrations occurring in waves over a period of several weeks with a VPG or VPG setup of approximately 50 VMs, that is multiple gigabytes of data, even terabytes in many cases. Having that data already copied on the evening of the migration saves considerable hours of time. It easily saves us four to six hours a night."
"Zerto's ability to test failovers with a record of how long it takes to fail the motor is beneficial, as it allows us to know the timing in the event we have to do it live."
"I like that the failover is simple and that it's a stable platform. It makes it easy for us to do failovers in the event that we have an issue. It also makes it easier to do test failovers because we can test it prior to actually doing a real failover. This means that we can pull things back or commit them over on the other side. Zerto streamlines the process instead of having to have a whole team of people who are dedicated to disaster recovery."
"If we lost our data center and had to recover it, Zerto would save us a great deal of time. In our testing, we have found that recovering the entire data center would be completed within a day."
"Its automation and the ability to replicate and keep an RTO of just seconds is valuable. It is all automatic. Everything is pretty transparent on the backend. It is just point-and-go."
"I like the less than one-minute RPO, the ability to IP customize during failovers, and the cloning feature that I can use to clone VMs over at the target location. As part of the automation failover, if we need to change an IP when it fails over to the other data center, Zerto will handle that; there's no need for manual intervention. As far as the cloning, we use that to do quick testing of a VM in the remote data center for lift-and-shift processors."
"The one-to-many replication functionality is helpful. While we were protecting our VMs in Azure, we were able to use the one-to-many feature to also replicate the same VMs to our new data center, in preparation for data center migration."
"The only thing that I'd like to see is more support for platforms like OneDrive or Box.com."
"We've had some organizational changes that Nasuni has not been able to keep up with, mainly from a data or file system perspective. Moving a filer from one management console has been a challenge. It lacks the flexibility to move files in and out of the management console. We have six management consoles now, and we're constantly telling Nasuni, "Hey, please allow us to move a filer from management console A to B." They can't do that."
"The Nasuni file storage platform doesn't work well when there are a high number of small files. This is the case when a directory structure contains more than 10,000 or 20,000 small files, e.g., 5 KB, 10 KB, or 15 KB. When the user is accessing these files from another geographical location, they might face a slow response or timeouts when connecting to the shares, and then to the files. This is because the file size is small. There is a scope of improvement with this solution when it comes to accessing a large number of small files."
"Room for improvement would be the speed of replication of new files. I would also like to see cloud mirroring."
"Some applications may not be suited for the Nasuni environment. You may need something with better performance. Otherwise, if you want to run daily operations or some file system, it's a good bet."
"Migration from existing systems, specifically StorSimple, could be improved, but that solution will be end-of-life by the end of the year. Also, the documentation could be more accessible."
"The only issue we face with Nasuni is from the performance perspective. Sometimes, when we deploy a Nasuni device, it doesn't meet our requirements. It's a capacity-planning issue."
"We would like to have a user desktop agent to help improve the end-user experience."
"There are certain things about the user interface that could be a little bit more user-friendly."
"The technical support has room for improvement."
"They definitely have room for improvement in a couple of areas. One is role-based access control. Right now, they don't have an identity source so they use the identity of the vCenter or the VMM. If they connected to an identity source like Active Directory and allowed for granular roles and permissions, that would be an improvement."
"The replication appliances tend to have issues when they recover from being powered off when a host is in maintenance mode. Sometimes you have to do a manual task where you go in and detach hard disks that are no longer in use, to get the replication appliances to power back on. There are some improvements to be made around the way those recover."
"The onset of configuring an environment in the cloud is difficult and could be easier to do."
"It is crucial for Zerto to collaborate closely with VMware in order to promptly test updates."
"It would be helpful if the reports can be generated periodically, on a schedule."
"Zerto should add the capability to replicate the same VM to multiple sites."
Nasuni is ranked 8th in Disaster Recovery (DR) Software with 35 reviews while Zerto is ranked 2nd in Disaster Recovery (DR) Software with 236 reviews. Nasuni is rated 8.8, while Zerto is rated 9.0. The top reviewer of Nasuni writes "We have less downtime and fewer trouble tickets from users who cannot access their shared files". On the other hand, the top reviewer of Zerto writes "Gives us business continuity capabilities during hurricane season and in case of ransomware". Nasuni is most compared with Panzura, WekaFS, CTERA Enterprise File Services Platform, Qumulo and Dell PowerScale (Isilon), whereas Zerto is most compared with Veeam Backup & Replication, VMware SRM, Rubrik, Dell RecoverPoint for Virtual Machines and VMware Cloud Disaster Recovery. See our Nasuni vs. Zerto report.
See our list of best Disaster Recovery (DR) Software vendors, best Cloud Migration vendors, and best Cloud Backup vendors.
We monitor all Disaster Recovery (DR) Software reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.
