An engineer is configuring Veeam Backup and Replication for an organization to protect a VMware environment using vSAN. The backup proxy must be isolated from the VMkernel.
Network Mode – Veeam Help Center
This page states that “Network mode can be used with any infrastructure configuration.” It uses NBD (Network Block Device) over the ESXi host’s VMkernel/management interface.
Because Direct SAN access is explicitly disallowed for vSAN (from the Direct SAN Access doc) — that rules out option B.
Veeam Software
The Virtual Appliance (HotAdd) mode has limitations with vSAN (HotAdd for vSAN requires the proxy VM to be on the same vSAN datastore, and there are restrictions) — so if the proxy is isolated from VMkernel, HotAdd isn’t viable.
Veeam Software
The Network mode uses the ESXi host’s network interface (NBD/NBDSSL) and doesn’t require direct storage or VMkernel-level connectivity — making it usable even when the proxy is isolated.
It's D
We know it's not direct SAN or NFS access because vSAN is neither.
Veeam documentation states that Network Mode communicates with ESXi:
https://helpcenter.veeam.com/docs/backup/vsphere/network_mode.html?ver=120
sorry, C if this traffic should be isolated from vmkernel
upvoted 2 times
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