Sangfor HCI Backup & Restore
To get your VMs on Sangfor HCI backed up, you'll have to install a lightweight backup plugin on each of your Sangfor HCI hosts, and connect the Sangfor HCI virtual paltform to Vinchin Backup & Recovery, then you'll be able to perform VM backup and restore.
Please refer to the below articles for step-by-step instructions of how to get Sangfor HCI VMs protected.