You can configure a backup job to create regular backup files on the backup repository and, additionally, maintain a snapshot chain on the storage system. Veeam Backup & Replication lets you create storage snapshots in the following destinations:
- Primary storage array where VM disks are hosted
- Secondary storage arrays
[For IBM Spectrum Virtualize] When you add IBM Spectrum Virtualize storage systems with HyperSwap function to the backup infrastructure, Veeam Backup and Replication, by default, works with primary storage volumes. If you want to select secondary storage volumes as a data source for backup, use registry keys. For more information, contact Veeam Support Team.
Depending on the backup job settings, the created storage snapshots can be application-consistent or crash-consistent.
The backup job of this type is performed in the following way:
- Veeam Backup & Replication triggers VMware vCenter Server to create a VMware vSphere snapshot for a VM.
- Veeam Backup & Replication instructs the storage system to create a temporary snapshot of a volume or LUN capturing VM disks and VMware vSphere snapshot. The VMware vSphere snapshot on the primary storage array is deleted.
- Veeam Backup & Replication uses the temporary storage snapshot as a data source for backup and replication.
- After the backup or replication job is finished, the temporary volume snapshot is copied to the storage system and published as a new snapshot in the snapshot chain.
- After snapshot transport, Veeam Backup & Replication performs cleanup operations and removes the temporary snapshot on the primary storage array.