Migration to a new server

hello,

when i will replace my server, i thought to do the following :

1. Reinstall MS-SQL

2. Reinstall SAP with exactly the same parameters (instance name, system number...)

3. Stop SAP

4. Drop the new database and restore my database backup (i use MSSQL)

5. Replace c:\usr with my backup

6. Start SAP

is the correct way to do? or do i have to do a system copy?

regards