fedora 8 and adding an existing raid set / drives ?

[Gregory Machin]

Hi
I have a mail server that was running fc 6 on the os partition and all
the data on a mirror set. Fc 6 went for a loop so I  decided upgrade
to fc 8 ... all good except the install wizard does not see the old
raid set correctly .. So I continued with the install  .. It's been
ages since I last manually configured raid .. what is going to be the
quickest way the get the raid back on line ?
Thanks