Ignorant question.... Can I mix ata100/ata66 same size/brand HD's in a raid setup?

[SilverThief]

Ive got a Maxtor 15.3g ata66 7200rpm HD, and am buying a Maxtor 15.3g ata100 7200rpm HD to put in a Raid O array.
Will these 2 work together?

I know nothing about Raid, but I want to learn.

 

[teckmaster]

yes they will work together. I would put the faster one first in line though. Raid isn't particular as to what hard drive you are using. You could have a 15 gb and a 4gb and it would work.