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MRoushdy
Hot Shot
Hot Shot

VSAN on nested ESXi

Hello, I've destroyed my VSAN  lab, and rebuilt again, but I have VSAN connectivity issue between hosts and I get this message on each host:

Host cannot communicate with all other nodes in vSAN enabled cluster

My setup is as following:

  • Physical ESXi 6.5 U2 host (lab base).
  • vCenter VCSA 6.7 U2.
  • a dedicated VSS on the main host with no uplinks for VSAN, security enabled settings are: Promiscuous mode/, Forged Transimts. MTU is 1500.
  • Three ESXi 6.7 U2 host VMs.
    • Six Nics
      • 2 x MGMT + vMotion
      • 2 x VSAN >> connected to the mentioned port group on the physical host for VSAN, and vmkping works fine between these virtual hosts on the VSAN vmkernel adapter.
      • 2 X VM traffic
  • Those hosts are joined to a distributed switch, and there's a port group for VSAN on that switch, with two vmnics.

I've fixed this issue earlier on my previous lab, but with this new lab I have that mentioned error. Though, mixing and matching the portgroup security settings didn't make the hosts detect the VSAN connection well/.

What would you suggest please?

Thank you,

vEXPERT - VCAP-DCV - Blog: arabitnetwork.com | YouTube: youtube.com/c/MohamedRoushdy
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HussamRabaya
VMware Employee
VMware Employee

Dear ,

I have the same exact lab (esxi 6.7u2+vc  6.7)with same network setup exactly and also same issue 

Did you find solution for this issue ?

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MRoushdy
Hot Shot
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Hey, yeah I've managed to fix it. I just kept it simple and used a portgroup with no physical up-links, worked fine that way. Maybe my issue was originating from using MTU 9000 on my physical switch. You can still set it to 9000 but on the isolated port-group (distributed switch actually).

vEXPERT - VCAP-DCV - Blog: arabitnetwork.com | YouTube: youtube.com/c/MohamedRoushdy
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