A New Way of Backup

Many existing ESXi backup tools supporting versioned backup require frequent full backups, with incremental backups in between. This makes it impossible to delete individual backups, and restoration from an increment backup becomes slow because it has to start at a full backup with subsequent incremental ones applied as patches.

Vertical Backup does not require full backups after the initial one. Every backup is incremental by nature since only new blocks are uploaded. At the same time, each backup also appears to be a full backup, such that any backup can be individually deleted without affecting others, or independently restored without the need to go through a long chain of other backups.