Taking over for someone and not an expert yet, so forgive me if this is rather simple. I've done a fair amount of searching and haven't seen an answer yet.
There are 4 hosts in a cluster - Nutanix - the NIC's are all into 1GB ports in one switch for one subnet (call it .128/25) currently configured as access ports - no VLAN ID is set on the vm network ports and we're using standard vswitches. The port group is called "VM Network".
I have 8 new ports on both physical switches now configured with trunking with VLAN ID's and 4 VLANS that are going to be necessary in this cluster - hence the change. One of the subnets will be the above .128/25 I noted.
If I vacate a host, move the cables and configure the port groups for each of the 4 subnets calling them prod1 through prod4, once the host starts tagging packets will I be able to vmotion to the newly configure host from one of the other three?
Thank you,
Mike
Since you cannot vMotion VMs from one host to another if port group name differs, my recommendation is:
1. evacuate VMs from host that you want create the new port groups with VLAN tagging;
2. create the new port groups with appropriate names and VLANs;
3. on host without VLAN tagging, create same port groups but without VLANs;
4. change the VMs virtual network interface to the appropriate new port group;
5. vMotion the VMs to the new host.
Since you cannot vMotion VMs from one host to another if port group name differs, my recommendation is:
1. evacuate VMs from host that you want create the new port groups with VLAN tagging;
2. create the new port groups with appropriate names and VLANs;
3. on host without VLAN tagging, create same port groups but without VLANs;
4. change the VMs virtual network interface to the appropriate new port group;
5. vMotion the VMs to the new host.
Thank you, that makes sense.
When adding the new port groups to a host still containing VM's, I assume that without tagging, all the port groups (for the moment) will just use the existing subnet. When I change the network to prod1 or whatever on the VM's, they'll just drop a few packets, then I can vmotion them.
You're welcome,
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