When performing Instant VM recovery, Veeam will immediately pre-allocate the necessary amount of storage on the target infrastructure, even though the guest image used is residing on the backup repository.
Note: this pre-allocation is performed only for Instant VM Recovery usage. Sure Backup processing will use a thin provisioning mechanism instead, preserving resources on the infrastructure.
Note: Instant VM Recovery, will send Data over the production (DNS aware) network. During “recover to production”, the preferred network are not used for data traffic. It’s recommended to use a fast network connection or the Hyper-V parent partition for fast IVMR and recovery to production.