Database Migration and Upgrade across Servers ( from Solaris to HP)

Gurus,

We have a Requirement to migrate all 10 Oracle databases (10.2.0.1) running
on Sun Solaris Server ( Solaris 10) to HP-UX Server ( running HP-UX 11i).

We want to upgrade all the databases to the latest Oracle release 10.2.0.4.

What could the most feasible approach ? -- Each of our Databases size is 30
GB.

Thanks for your time.

-- 
Bala Rao

Other related posts: