I am attempting an upgrade of our ArcGIS Enterprise v. 10.8.1 to 10.9.1. I receive an error the following error:
"Attempt to configure the data store failed. Caused by: Runtime error detected for one or more operations on the ArcGIS Data Store configuration store. Caused by: Failed to get file permission."
I checked the Windows credentials of the server user account, it has full permission right to the arcgisdatastore folder.
I have tried using the server name, FQDN, and DNS with the same error.

Any help will be much appreciated.