I've got two 120Gb ide drives which I want to raid0 for performance, and my m/b has two IDE buses built in. The linux-raid howto suggests putting one drive on each bus, because slave disks spoil performance. Thats fine, I've got the usual two buses, but my question is: Where should I put the CDROM drive? Is the very existence of a slave device the source of the performance degredation, or just that the bandwidth has to be shared between the devices (so not a problem unless the cdrom is being accessed)? Also, I remember from years ago that the cdrom could pull the whole bus down to some lower performance level (even if still using and 80wire cable?). Is this still the case? (The hardware in question is recent). Knowledgeable advice sought :) Andrew Walrond - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html