Success3
Enthusiast
Enthusiast

vSphere HA 6.5 Timing Out

From the testing I've done it appears that only a Master is being elected. I'm running a 4 node VSAN cluster with SSL(if it matters). Any one of my 4 nodes can be the Master...but after that is elected no slaves are elected...I keep receiving the operation time out for the remaining 3.

Anybody have any ideas? I've tried adding a new cluster, reconfigure HA, Disconnect, etc.

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pwilk
Hot Shot
Hot Shot

To resolve this issue, ensure that the network supports jumbo frames end-to-end. This should be verified by the local networking team.

To check the current MTU values set on the vSwitch and VMkernel network interface:

  1. In the vSphere Client, right-click the host in the cluster and then click the Configuration tab.
  2. Click Networking.
  3. Click Properties for Management Network on vSwitch0.
  4. Under the Ports tab, click vSwitch and then click Edit.
  5. Ensure that the MTU value is set to 9000 and not 1500 and then click OK.
  6. Repeat this process for the Management Network under the Ports tab, click Management Network and then click Edit.
  7. Ensure that the MTU value is set to 9000 and not 1500 and then click OK.
  8. Click OK.
  9. Repeat this process for all hosts in the cluster.
  10. Right-click the cluster and reconfigure HA.
Cheers, Paul Wilk
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