I have a dell t105 Opteron with nvidia sata controller on the
motherboard. Nothing but woes. Ideata abends drive dismounts etc.

I am thinking about swtiching to a promise card or something that comes
with Novell drivers. Can anyone recommend a good card? How about an
external SATA drive enclosure? I don't have room in the server for 3
more drives.

Then how do I do the switch? I was thinking I could create the raid
volume and then mirror the raid to the existing sys and data volume and
then once done remove the raid. Would that work?