>The problem with doing this now is there is no way to check to see if it worked correctly

Actually, there is. You can check the errorlevel to see if the xcopy succeeded. I have used the below code in a .cmd batch file to write the date and time of each successful or failed copy to a log file.

It uses UNC pathing, but pathing by drive letter works as well.

set dest=\\machinename\destinationshare
xcopy \\machinename\sourceshare\*.* %dest% /s /d /y

if errorlevel 1 goto failure

echo.>> %dest%\copylog.txt
echo Date and time of successful backup >>%dest%\copylog.txt
echo.|date|find "current">>%dest%\copylog.txt
echo.|time|find "current">>%dest%\copylog.txt   

GOTO END

:failure
echo.>> %dest%\copylog.txt
echo Date and time of failed backup >>%dest%\copylog.txt
echo.|date|find "current">>%dest%\copylog.txt
echo.|time|find "current">>%dest%\copylog.txt  

:END