How The Zerto Platform Works - Zerto

How Zerto Works

Discover how Zerto is blazing new paths forward for disaster recovery, ransomware resilience, and multi-cloud mobility


Best-in-class continuous data protection (CDP) powers Zerto to deliver a software-only solution that’s fundamentally different from anything else on the market. Discover what Zerto can do for you.


Zerto solution diagram featuring the key element of the product: Continuous Data Protection, Orchestration & Automation, and Analytics

Continuous Data Protection

CDP protects everything from small environments to complex multi-cloud environments with VM counts in the five digits. No matter the size of your environment, you can enjoy RPOs of seconds and RTOs of minutes with fully orchestrated disaster recovery running on the infrastructure of your choice. 

Near-Synchronous Replication

Software-Only and Agentless

Local or Remote

No Impact on Production

Journal-Based Recovery

Point-in-Time recovery

Granularity of Seconds

Site, Application, VM, File-Level

Consistent Application Protection

Logical Consistency Groups

Multi-VM Application Recovery

Purpose-Built for Multi-Cloud

One-to-Many Protection & Replication

To, from, and within clouds

Azure, AWS, IBM Cloud and more

Orchestration and Automation

One simple, scalable solution saves you time and resources while making it easier and faster to manage workloads at scale

Fast Failover and Failback

Perform failovers instantly with non-disruptive failover testing and live workflows that don't impact production.

Automated Protection

Automatically protect VMs to ensure complete, flexible data protection across your environment, even when new VMs get added or replication loads need auto-rebalancing.

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Auto-Protecting VMs with Zerto

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Integrate with other solutions, customize protection and streamline operations with rich set of Swagger-based RESTful APIs and PowerShell cmdlets.


Complete visibility and insights across multi-site and multi-cloud environments, plus predictive modeling—all at no additional cost.

Visibility and Proactive Management

Protection and recovery insights across all servers and applications; with SLA monitoring

Accurate algorithmic forecasting of future infrastructure needs using live data

Compliance and Regulatory

Built-in reporting coupled with non-disruptive testing

Reporting across all resources and restore operations

Compliance with internal audits and regulatory requirements

Zerto Components

ZVM: Zerto Virtual Manager

ZVM manages everything needed for replication between the production and recovery sites, except for the actual replication of data.

VRA: Virtual Replication Manager

This appliance manages data replication from protected entities to its local and/or remote target where it stores the data in the journal.

VPGs: Virtual Protection Groups

VPGs enable consistent recovery of an entire multi-VM application, and all its dependencies, to the exact same point in time, even if the VMs reside on disparate datastores or hosts.

Zerto Journal

The journal stores all changes for a user-defined period, from one hour up to 30 days. It allows you to recover to any point in time within that journal using recovery points that are only separated by 5-10 seconds.

Zerto Components in a DR architecture within a virtualized environment

Reference Architectures

Example: Disaster Recovery

The disaster recovery reference architecture on the right demonstrates proven practices for setting Zerto with a single remote target used as the recovery site.


In a single remote target architecture, protected VMs are organized in protection groups with VM-level consistency. A remote journal is configured on the remote target side and used for short-term recovery scenarios where recovery granularity of just seconds can be achieved. The recommended journal history period for this journal is eight days as this will cover most recovery scenarios, including ransomware. All changes on the protected VMs are then kept for eight days before promotion to the remote replica disk(s).

Architecture Reference

Example 2: Local Continuous Backup and Disaster Recovery

The disaster reference architecture depicted in the figure on the right, takes the previous "disaster recovery" architecture and adds a local journal as well as a long-term retention repository.


The local journal provides a continuous backup capability, allowing the recovery of files, VMs or applications locally.

The long-term retention repository helps to store the data beyond the journal history for compliance needs.

What's Next

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