Have to replace hd on zenworks 4 server

Hi,

Our server is showing issues with the hard drive (older server and only
has one drive). Zenworks 4 running on nw 6 sp5. Unable to image because
of the HD issues. Will have to install a new hd and start from scratch.
Because the server is still up and functioning..(the volumes deativate
periodically due to the hd issues). Could someone point me to
documentation on how move our existing server to a new drive and
hopefully retain the information we currently have regarding
workstations, policies etc and edirectory considerations with this kind
of procedure.

Thanks

James