Attempting to restart vsanmgtd caused all kins of havoc:
[root@dev-vsan03:~] /etc/init.d/vsanmgmtd restart
watchdog-vsanperfsvc: Terminating watchdog process with PID 68918
stopping timed out
Failed to clear memory reservation to resource pool 'vsanperfsvc'
vsanperfsvc is running
vSAN health alarm 'Hosts with connectivity issues'Acknowledge Reset To Green
vSAN health alarm 'Physical disk health retrieval issues'Acknowledge Reset To Green
vSAN health alarm 'vSphere cluster members do not match vSAN cluster members'Acknowledge Reset To Green
vSAN health alarm 'vSAN CLOMD liveness'Acknowledge Reset To Green
The core dumps are brand new and get recreated each time I stop and restart HA.