What is our primary use case?
Our primary use cases include replication and disaster recovery.
How has it helped my organization?
We use Zerto to help protect VMs in our environment. We are really happy with RPOs (Recovery Point Objectives).
Both the Recovery Point Objective (RPO) and Recovery Time Objective (RTO) are fine. They always meet our requirements. Their significance is not driven by a single factor but rather by the customers. Some customers require an RPO of a few hours, while others require up to 24 hours. It depends on the specific needs of the customer.
What is most valuable?
The most valuable feature for us and for my company is that we are replicating most of our production customers to the DR site, and we can do testing whenever we want. The customers are very happy with the way we do the testing while the primary is still running. There's no disturbance to the primary production site.
The most important function right now is that we have another DR site, which is in a very old environment that is non-Zerto. We were log shipping there through another method. We are migrating over to the Zerto platform so we can replicate it to the new DR site so we can shut it down. That's going to be a lot of savings for us, shutting down the old replication with the other way. That will be one of the benefits too.
Zerto offers near-synchronous replication, which is always on and constantly replicates only the changed data to the recovery sites within seconds. It doesn't really bother us because we have enough bandwidth. Since we do a 24-hour recovery, it does not take a lot of disk space. It's an issue sometimes because I have to constantly increase the space on the disks at the DR site. On the VPG (Virtual Protection Groups), I have to constantly increase the space. That's where the alerts are being generated too.
Someone suggested to me that I should turn off this feature, but that's not the way to do it. Turning it off temporarily is similar to applying a bandage.
Moreover, we have plans for DR recovery in the cloud. That's our next step, and it's likely to be on the agenda. We probably will use the license we have for that, which we can use as of today.
What needs improvement?
Zerto generates many false positive alerts, which is annoying. I still have thousands of alerts in my inbox, and those are false alerts. When I check there's actually no problem.
For how long have I used the solution?
I have been using Zerto for four-plus years.
What do I think about the stability of the solution?
It's very stable as far as we're running. Even though I'm running it on a very old Windows Server 2012 server, it's still running fine without any issues.
What do I think about the scalability of the solution?
Scalability-wise, it's pretty good, too, but we're not there yet. We are using it for small 50+ VMs we are protecting right now, but we are continuously growing. We may have to expand with multiple ZVMs (Virtual Managers). We're going to install multiple. We just have one on each side, which we don't have an issue with.
How are customer service and support?
The customer service and support are really good. I wish they had phone support too right away, but we have to go through their website and open a ticket.
Moreover, there's always going to be something a person is not one hundred percent knowledgeable about. He has to escalate to the top tier.
How would you rate customer service and support?
What about the implementation team?
Somebody else did the deployment in the company and I took it over after that. I just recently upgraded to the latest version without any issues. Zerto is very easy to upgrade.
There is an area of improvement for Zerto folks. Every time we do an upgrade, if we are three or four releases behind, we have to go to the next level, then the next level, and then the latest. This is a pain. We would like the ability to skip to the newest version.
What was our ROI?
ROI is pretty good compared to the recovery compared to the investment we have. The solution is worth it. If we go to the cloud, the ROI is definitely going to be much more.
What's my experience with pricing, setup cost, and licensing?
The pricing is pretty decent. We got a good deal.
Which other solutions did I evaluate?
I really like Zerto. I've been using it for many years. It's a quick recovery. I failed over the complete site to the DR many times and then failed back to the production without any issues.
We have VMware SRM but we are not using it. We have a license, we can use it, but we're not using it because Zerto is our primary right now.
Zerto is very easy to use. It's not dependent on the hardware. It can decouple from any hardware. You can use it, even if you have different hardware at the source and the destination. That was the biggest attraction when we got into Zerto. It's pretty decent.
What other advice do I have?
I would rate Zerto a ten out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.