What is Instant Recovery?

During a traditional restore, all data must be read from the backup repository and written back to the target location. This can take some time depending on the total amount of data, so it’s not easy to achieve low RTOs.

With Instant Recovery, on the other hand, the content of the backup file is mounted from the backup repository. In case of virtual machines, the target hypervisor will see this as an NFS datastore, register the virtual machine and its disks, and start it up. Within a short amount of time, the virtual machine is back online and services are restored. This makes RTOs of just a few minutes possible.

with thanks to,

Veeam Backup for Proxmox – Part 5 – Michael Paul | @micoolpaul