In the HotAdd transport mode, third-party users must first complete the pre-deployment operation—deploy a backup proxy VM in the same HCI resource pool as the protected business VM—before using this backup proxy VM to perform backup and recovery operations.

To implement batch and rapid deployment of backup proxy VMs, you can pre-create a VMA image of the backup proxy VM (Note: VMA image is a custom image file type developed by Sangfor, mainly used for VM distribution) and release this VMA image together with the third-party backup app. During actual agentless backup implementation:

1. Upload the VMA image to the target HCI resource pool.
2. Derive multiple backup proxy VMs in batches based on this image to meet deployment requirements.