Veeam Backup & Replication supports software-defined storage technology. This mechanism can also be used for troubleshooting or testing patches and upgrades. During the verification, the VM image remains in a read-only state. The program starts a VM directly from a backup or replica in the isolated test environment and runs tests against it. Veeam Backup & Replication provides automated recovery verification for both backups and replicas. Additionally, there is an option to perform active full and synthetic full backups. The available backup methods include forward incremental-forever backup, forward incremental backup, and reverse incremental backup. Backup increments are created using the built-in changed block tracking (CBT) mechanism. Backups can be full (a full copy of VM image) or incremental (saving only the changed blocks of data since the last backup job run). It backs up VMs at the image-level using a hypervisor's snapshots to retrieve VM data. Veeam Backup & Replication operates both the virtualization layer as well manages physical machine backup.
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