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We have a vSAN cluster where the vSAN network is physically separated on different network switches from the management and other VM networks. When configuring Veeam backup proxy for VM backups on vSAN, what interfaces or connectivity is required? What traffic flows over which interface? Is the below understanding correct or we need only one interface on the backup proxy connecting to the ESXi mgmt network?

 

ESXi: vmnic0 - esxi mgmt  (connected to a pairA of network switches)

vmnic1 - vsan (connected to pairB of network switches)

 

NIC0 - connectivity to ESXi Mgmt (Connects to ESXi/vCenter for VM and esxi details, mouting the backup VM disk to the proxy VM)

NIC1 - connectivity to the vSAN inetwork (data of the VM is fetched through this interface)

 

Thanks,

Sudhir

On Help Center we can find:

https://helpcenter.veeam.com/docs/backup/vsphere/virtual_appliance_mode_vsan.html?ver=120

https://helpcenter.veeam.com/docs/backup/vsphere/transport_modes.html?zoom_highlight=vsan&ver=120

Install a VMware backup proxy on a VM running on an ESXi host connected to the VSAN storage device.

Like Marco said.

A vm backup proxy only needs access to the vsan datastore, that the vsan replication is using a different network is irrelevent here.

As long as the VM in question can access the datastore, hot add will work.

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