Moving a DS installation to a new server

Hi all

does anyone know of decent documentation on how to move a current DS 6.9 (Build 453) installation to a new server.

SQL is off box and not being moved, the server that hosts the DS applicaion is almost out of warranty and we are purchasing a new server.

We have NS7.1 on a separate server and at this stage do not want to migrate to DS7.1

Thanks

Catherine