Additionally, Veeam Backup & Replication creates a reverse incremental backup file containing data blocks that are replaced when the full backup file is rebuilt, and adds this reverse incremental backup file before the full backup file in the backup chain. Veeam Backup & Replication “injects” copied data blocks into the full backup file to rebuild it to the most recent state of the VM. During subsequent backup job sessions, Veeam Backup & Replication copies only VM data blocks that have changed since the last backup job session.During the first backup job session, Veeam Backup & Replication creates a full backup file in the backup repository.Veeam Backup & Replication creates a reverse incremental backup chain in the following way: The reverse incremental backup method produces a backup chain that consists of the last full backup file (VBK) and a set of reverse incremental backup files (VRB) preceding it.
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