Quick backup lets you perform on-demand incremental backup for VMs. You can use quick backup if you want to produce an additional restore point for one or more VMs in a backup job and do not want to configure a new job or modify the existing one. Quick backup can be run for both incremental and reverse incremental backup chains.
Quick backup is an incremental backup task: Veeam Backup & Replication copies only changed data for selected VMs and saves this data to a new restore point in the backup chain. Similar to incremental backup, quick backup can only be run for VMs that have been successfully backed up at least once and have a full restore point. If there is no full restore point for a VM, quick backup cannot be performed.
To perform a quick backup, Veeam Backup & Replication uses an existing backup job. When you start a quick backup task for a VM, Veeam Backup & Replication verifies that a backup job processing this VM exists on the backup server. If such a job is detected, Veeam Backup & Replication triggers a job and creates an incremental restore point for the VM. If a backup job for the VM does not exist, quick backup is terminated.
You can run a quick backup for one VM or more VMs at once. If you start a quick backup for several VMs and these VMs are processed by different backup jobs, Veeam Backup & Replication triggers a set of backup jobs. Each triggered job creates a separate restore point and stores this restore point in a correct backup chain.
In some cases, a VM may be processed by several backup jobs on the backup server. In this case, Veeam Backup & Replication starts the job that has created the most recent restore point for the VM.
For example, VM01 is processed by 2 jobs:
- Backup job 1 created the most recent restore point on Monday
- Backup job 2 created the most recent restore point on Tuesday
When you start a quick backup for VM01, Veeam Backup & Replication will trigger Backup job 2 to create a new incremental restore point.
If the quick backup task overlaps the scheduled backup job, the backup job waits for the quick backup task to complete.