How would I move SQL MSSQL.1 and MSSQL.2 location? We have a SQL instance where the MSSQL.1 and MSSQL.2 were installed on a SAN drive. We are moving away from this SAN do to faults and we wish to move the files and folders to a new SAN. How would we do this?

All DB datafiles have been moved and are up and running again, I just want to know if it is necessary to move these over:
First shut down sql server

Then the best option is to robocopy everything from the disk to the new disk with the existing security.

when this is done, remove the old disk, and give the drive letter of that disk to the disk which you robocopied to. After that start SQL Server again.

This way SQL Server will not notice they are now on a new disk.