vSAN Cluster Shutdown wizard fails with vmodl.fault.HostNotReachable

Products

• VMware vSAN

Issue/Introduction

Symptoms:
vSAN network configured for IPV6
Running the vSAN Cluster Shutdown via vCenter fails with vmodl.fault.HostNotReachable


Running nc command to all hosts within the cluster to test port 80 succeeds

nc -v -6 xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx 80
Connection to xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx 80 port [tcp/http] succeeded!

Testing port 80 on the local vSAN IP fails with a timeout

nc -v -6 xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx 80
nc: connect to xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx port 80 (tcp) failed: Connection timed out

Environment

VMware vSAN 7.0.x

Cause

This is caused when the orchestration host's vsanmgmtd can't create a tunnel to its local hostd via port 80 and the local vSAN IP to perform detailed power actions on the local host.

Resolution

Upgrade both vCenter and ESXi to version 7.0U3l

Workaround:
If an upgrade is not possible then either use IPV4 for the vSAN network or shutdown the cluster manually via Manually Shut Down and Restart the vSAN Cluster

Additional Information

Impact/Risks:
vSAN Cluster shutdown wizard fails to shut down the cluster