Since I installed a brand new instance of VCSA 6.0 (and updated it to the latest patch 2656761) this service fails to initialise properly. It does start, but it's status shows as "unknown" and it reports the following warning: HTTP request fails; service: vws, url https://myserver:443/hwh/healthstatus, HTTP status 401 - Unauthorized
Consequently, I can't see hardware status of any of my ESXi hosts. Any suggestions?
Did you try reset of Inventory database?
You could follow steps as mentioned in article , how to do.
that is meant for vcenter 5.x but not 6.x
by the design,the hardware status plugin isnt available in vsphere client but only on web according to this,
vCenter 6.0 do not use HW Status anymore, is only the health tab in vSphere Web Client.
Hope this helps