[DM-MUG] Using RAID with Tiger

[John Robertson]

Just wondering if anyone has any experience using RAID on a single  
user OS.  I purchased a new 1TB drive and I was thinking of  
partitioning it to use as a mirror for my 500G drive.  I have two  
questions before I attempt this. The 1st question is, will it erase  
the contents of the old drive (the 500 gig) that I am adding the 1TB  
to when I turn on RAID? Also, what are the differences between RAID  
mirrored and RAID Striped? I understand how Mirroring works and a  
little about RAID 5 (which is only available on servers) but I don't  
know which of the other option available here would be better to use.

Thanks,
    John