It's the first time I work with a vSAN enabled cluster and the first job to do is to re-IP the vMotion network to interact with a regular, non-vSAN cluster. All ESXi hosts are running 6.7.
The task I have at hand is to migrate VMs from non-vSAN into vSAN cluster. But the vMotion networks are different for each cluster. My colleagues in networking have extended the same VLAN between both set of hosts.
My doubt is if making changes to the vMotion network might affect the functioning of the vSAN features of the cluster. My guess is no, but I want to hear your professional opinion.
With a default setup, and the VLANs being allowed (assuming you're working with 802.1Q tagged ports on the physical switches), it's basically a matter of changing the vMotion port groups (IP address and VLAN-ID). Make sure that no migration is running, and consider to temporarily set DRS to "Partially Automated" while re-configuring the vMotion settings.