The Hot Add Data Transfer mode significantly improves VM backup and replication speed and reduces the load on the network. NAKIVO Backup & Replication can read data directly from VM datastores, bypassing the host's TCP/IP stack that would otherwise impact every VM on the host, and slow down the data transfer. NAKIVO Backup & Replication can mount (Hot Add) VM snapshots, and read VM data directly from VM datastores through the host's storage I/O stack.
By default, NAKIVO Backup & Replication will automatically attempt to use the Hot Add mode for VM backup and replication jobs. Please check the appropriate system requirements section for requisites and limitations.