I just installed a new vCenter 6.5 appliance on my ESXI 6.5 Host. I was very sluggish
Migrated to another host added more CPU
But the logon is taking a very long time
This is from my conso0le.
There is a VMware KB for same
VMware Knowledge Base
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I found the VM was on a storage device that lost a drive from the raid .
After move the VM date to another datastore it is now working fine