Backup from Storage Snapshots
In an environment where an initiator/storage group consists of both the ESXi hosts and the Veeam Backup Proxies, Veeam will use the existing initiator/storage group instead of creating a new group. This causes the storage snapshot that is exported to the proxy to become visible to the ESXi hosts. When the job completes, the storage snapshot is then unexported and deleted. During this time, the ESXi hosts see the storage snapshot (it isn’t mounted), and when the storage snapshot suddenly disappears triggers the event in VMware which in turn triggers the alarm in Veeam ONE.