Which interface on my ESX connects Veeam for BackUp

[matrox65]

Hello,
i have a small enviroment with 4 ESX hosts and 1 Physical Windows 2016 Server with vCenter and Veeam BackUp&Replication. We have 40 VMs running. My Datastores are on a Storage what used Fibre. My Config are:

ESX Host
vSwitch0 (vmnic0 1'000 Full, vmnic4 10'000Full)
- vmk0 Management -> activ vmnic0, standby vmnic4
- vmk1 vMotion -> activ vmnic4, standby vmnic0

vSwtich1 (vmnic1 1'000 Full, vmnic5 10'000 Full)
- LAN for VMs

BackUp Server
- Has access to the volumes over fibre to my Storage Datastore
- Use 1 Nic for management with 10'000 Full, and 1 Nic for iSCSI connect to Secondary Repository on my NAS with 10'000 Full

My Question are:
Use Veeam now my vmk0 or vmk1 Interface on my ESX Host? Why i want that Veeam can use the 10'000 Full Interface.

best regards, matrox65

[hoang92bn]

veeam is using mgmt vmkernal for traffic.
veeam recommend use Direct SAN Access for your topology (u already had Physical Server for Proxy)

[Andreas Neufert]

Veeam gets from vCenter the full qualified domain name of the ESXi host, then ask DNs system to get the IP. You can manipulate this to use a specific interface (vmkernel IP) by manipulating DNS on Veeam B&R Server and all Proxies used. The most simplest was is by using the hosts file.

Please see full explanation and examples here: https://bp.veeam.expert/dns_resolution

[Andreas Neufert]

Regarding Transport mode. There are several available but all use the ESXi direct connection to VMkernel to do at least management things.

You can find a good overview of transport methods here: https://bp.veeam.expert/proxy_servers_intro

[matrox65]

Hello,
thank you for your answers. Than i understand that i must change my Configuration on my ESX Host. I have only 2x 10Gb/s NIC's.
So i should use one of my 10Gb/s NIC for my VMs and the other one 10Gb/s NIC i must give my Management vmk0. The vMotion will receive a 1Gb/s NIC.

Is this correct?

best regards, matrox65

[PTide]

Given that you have a physical Veeam host that has a direct access to the production storage, you should rather go for Direct SAN access mode. That is, there is no need to change management NIC.

Thanks!

[matrox65]

But for my NAS as Second Repository i use iSCSI. When i now must restore from this NAS i use the network and not Direct SAN.

[PTide]

That's totally fine - if you use thick-provisioned disks then you should be able to use Direct SAN for restores as well.

Thanks!