Steps to migrate database backup location to another disk ?

As the database is getting bigger and bigger, the existing disk for backup runs out of space.

We intend to replace it with another disk.

Just would like to seek your advice

1) Do we need to stop SQL Server when we change the backup location ?  Most likely NO

2) Should we change the backup location in Database Maintenance Plan before copying BAK / TRN files across disks ?

3) Can I use the following command for copying files across disks ?

ECHO OFF

xcopy D:\Mybackup\*.* \\DestServer\D$\backup\ /S /Y /E /Q

Thanks