Creating Hyper-V Rapid Recovery Backup Sets

To create a Hyper-V Rapid Recovery backup set, perform the following steps.

Navigate to the Computer page.
The Computer page is displayed.
Click the Backup tab.
The Backup Selections page is displayed.
In the Backup Type pane, click Hyper-V Rapid Recovery.
The Select page is displayed.
Click the Backup Name to provide a new name for your backup set or accept the default. See Changing Backup Set Names .
At the Select Storage Location Path field, type a path, or click the Browse button to select the storage location of your backup. See Browsing to a Folder.
Important! Ensure there is enough space available to host the entire backup and its future revisions.
Note: Changed locations of the destination hosts of the recovery VMs, are not changed until the next backup set is run.
In the Current selection pane, select the virtual machines you would like to back up.
Your selections are displayed in the far-right pane. Click the delete icon to remove any selections or clear the item check box.
After making your selections, click Next.
The Schedule page is displayed.
Accept or edit the default schedule. See Backup Schedules
for more information.
Your schedule is displayed in the Schedule column. Click the remove icon to delete schedule.
After setting your schedule, click Next.
The Retention page is displayed.
Notes
You can retain up to 99 revisions per virtual machine. With the default schedule of backing up every 1 hour and keeping 96 versions, up to 4 days of recoverable versions are retained at the storage location.
The backup set preserves the current state of the virtual machines only. User-generated snapshots are not saved.
Specify how many recoverable versions of backups at the storage location you would like to retain, and then click Next.
The Advanced page is displayed.

Requirement
You must specify a temporary folder located on a disk with sufficient space. Temporary space of 1 GB is recommended for Hyper-V backups.
In the Temporary Folder field, accept the default, type a new path, or click the Browse button to locate the temporary folder that is used during backing up.
Optionally, in the Backup Mode section, select the Allow Crash-Consistent Backups check box.
Crash-consistent backups do not preserve the integrity of data for open files of transactional applications on the VM guest OS and may result in data loss.
Definitions: A crash-consistent backup captures all the virtual machine's data at the same time.
An application-consistent backup captures all the data including the data in memory and all transactions in process.
Notes
When crash-consistent backups are enabled, the virtual machine may become unavailable during the snapshot process.
The software attempts to make an application-consistent backup. If unable, a crash-consistent backup is created
Pre-Windows Server 2016 versions display a different backup mode option as shown below.
When enabled, the virtual machine may become unavailable during the snapshot process.
The software attempts an online backup first. If unable, an offline backup is created. The virtual machine is paused and put into a saved state while the snapshot is taken, and then the virtual machine resumes operation. VMs in a saved or a paused state can be backed up. The imported recovery VMs are in a saved state in both cases.
Tip: This mode is useful if an online backup cannot be taken. For instance, if the guest VM has dynamic disks, this mode allows guest VMs to be backed up in a non-quiesced, offline state.
Click Next.
The Summary page is displayed.
After reviewing your selections, click the Create Backup Set button.

Your scheduled backup is displayed on the Backup Selections page.