I also logged a message on the Lenovo Forums and have not had any response or suggestions, surely I cannot be the only person in the world with this problem?
The machine has had the latest firmware applied to the devices.
Configuration (NEW) Server
Lenovo ThinkSystem ST250 Standalone ESXi 6.7U3 Host, (free license) single VM, Small Customer Second Site.
I have the Lenovo 32GB M.2 SSD as the Boot Drive for ESXi on the standard SATA Onboard Controller
I have 2 X 900GB SATA SSD on Thinksystem RAID 930-8i (RAID1)
The VM is a MS Windows Server 2019 Std this phenomena was also happening on the 2016 Std VM I had on the same data store
Everytime the host restarts the VM disappears, I have to go into the DataStore Browser and register the VM and power up manually.
After the restart the Datastore is in tact, the datastore is there, however the VM disappears from the inventory
I also have a similar setup on which this DOES NOT Happen
Configuration (EXISTING) - I have restarted the Host many times and the VM starts up no problems
Lenovo ThinkSystem ST250 Standalone ESXi 6.7 Host, (free license) single VM, Small Customer Primary Site. (No Updates)
2 X 600GB SAS drives (RAID1) on Thinksystem RAID 930-8i as the Boot Drive for ESXi (different to problem host)
2 X 900GB SATA SSD on Thinksystem RAID 930-8i (RAID1) Same as other System
The VM is a MS Windows Server 2016 Std
The difference between the systems seems to be:
ESXi boot drive = 32GB SSD M.2 onboard SATA raid controller
ESXi 6.7U3 on this system, where the old sysem has ESXi 6.7
Someone please provide suggestions on the possible solution, as I can't handover to the customer in this state