RoboCopy
Backup / Mirror Drive
RoboCopy E: F: /e /MT:8 /r:5 /w:10 /log:robocopy.log /tee
Copies all files and sub directories, including empty directories
Uses 8 threads
Retries files that can't be accessed up to 5 times, waiting for 10 seconds between each retry
Writes to robocopy.log, and also to the console.
RoboCopy E: F: /e /MT:16 /r:5 /w:10 /log:robocopy.log /tee /e /purge
Additionally, removes directories and files from the destination if they don't exist in the source.
References
https://docs.microsoft.com/windows-server/administration/windows-commands/robocopy