In this scenario, you are running OS/400® V5R1 or V5R2 or i5/OS® V5R3 on your server and you want to upgrade to i5/OS V5R4.
If you are installing a new version of i5/OS on the same server, it is not necessary to perform an explicit data migration. You can use the Install the OS/400 release topic to install i5/OS V5R4 on your server.