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2.33. Incremental Snapshots and Backup

Snapshots are created on primary storage where a disk resides. After a snapshot is created, it is immediately backed up to secondary storage and removed from primary storage for optimal utilization of space on primary storage.
CloudStack does incremental backups for some hypervisors. When incremental backups are supported, every N backup is a full backup.
VMware vSphere
Citrix XenServer
KVM
Support incremental backup
N
Y
N