2 Replies Latest reply on Jun 3, 2020 7:58 AM by lucasbernadsky

    New vSAN Network Setup

    StevenU Lurker

      I've been racking my brain trying to get this to work.

       

      I have three hosts. Below are the details per host.

       

      Host Info

      ESXi 6.7U3

      One 1GB ethernet uplink

      One 10 GB fiber uplink

       

      Physical Network Switch

      VLAN 1: Management (Using the 1GB NIC)

      VLAN 2: vSAN (Using 10GB NIC)

      Jumbo frames have been enabled on the ports connected to the 10GB NICs.

      I've tagged both VLANs on the all of the ports.

       

      Install Issues

      I'm installing vCSA and creating the vSAN cluster through the vCSA installer.  Only the 10GB NICs were added.  I left the 1GB NICs that are on the management VLAN on the ESXi host standard switch.  I've set the vDS to the vSAN VLAN. After the install has been completed I'm getting several warnings.

       

      vSAN Cluster Partition (I tried removing and manually adding each host to the same cluster but that did not work.)

      vSAN: Basic (unicast) connectivity check (Details of this error show failed pings from the management network IPs and not the vSAN IPs.)

      vSAN: MTU check (ping with large packet size) (Details of this error show failed pings from the management network IPs and not the vSAN IPs.)

      vSAN object health

       

      As I'm researching these, they all seem to be pointing back to a networking issue that I haven't been able to figure out.  I've gone back into the vDS and set all vmk for each host in the vDS MTUs are set to 9000.

       

      All of the standard switches on the ESXi hosts which have the 1GB NIC uplink still have connectivity.  The vCSA VM is using the ESXi host standard switch so I'm able to connect to it.

       

      Any thoughts on where I went wrong?

       

      Thanks in advance.