Content server Migration 7.6 to 7,8

Hi Experts,

we have two SAP content servers:

- An old one Win2k3 (32bit) with MaxDB 7.6.00.18 and nearly 200GB of data

- A new Win2008R2 server (64bit) with SAP MaxDB 7.8.02.29 and 150GB of data

We´d like to move all data from the old 7.6 DB onto the new server.

Does anyone have a "best practice" for that?

On both CS we do a daily full backup into the filesystem.

Is there a possibility to recover the 7.6 backup on the "new" server into the 7.8 environment?
May

Any further suggestions? Export / import?

Thanks for any help.

Martin Schneider