How Zerto Virtual Replication for AWS Workload Protection Works
Zerto Virtual Replication provides a business continuity (BC) and disaster recovery (DR) solution by enabling failing over to AWS and failing back from AWS. The solution enables failback and migration from AWS to a hypervisor based datacenter or to the cloud, allowing protection of native AWS workloads and the ability to migrate that workload out of AWS.
Using Zerto scale-out technology, data is protected in AWS using Zerto Satellite (zSATS) for reading data in order to replicate the data to the recovery site.
To failback from AWS, a snapshot is created in the Amazon S3 bucket for each EBS disk. A new EBS disk is then created from the snapshot and attached to the zSAT EC2 instance. The zSAT EC2 instances are automatically created and deleted by the ZCA.
The following Zerto components enable the protection of workloads in AWS:
■ Zerto AWS Snapshot Adapter (zASA): This is a snapshots lifecycle manager that returns the entire disk for syncing. The zASA is an EC2 instance that is created once the system detects there is a VPG for protected workloads in AWS. The zASA instance remains up and running as long as a VPG exists and the ZCA is installed.
■ Zerto Satellite (zSATS): Scale-out solution with EC2 instances for reading data on protected EBS disks. The zSAT is an EC2 instance for reading data from the EBS disk that is created from the snapshot of the protected EBS disk. Once that disk is read, the snapshot, EBS disk and zSAT instance from the previous sync are deleted.