Running a windows 2008R2 server for production file sharing services. Wanna to replace the server with two new windows 2016 or 2019 servers. How to migrate the service, file data and access right without service down time to users? How to do the data synchronization and HA of the two new servers after migration? Please provide the detail. Thanks.
Besides, what upgrade version recommended? Windows 2016 or 2019?