Promise RAID-1 vs software RAID-1

[Christopher Chan]

> 
> The two drives used in this RAID array are on separate IDE interfaces.
> This is primarily because a drive failure will often take out that IDE
> interface, so using separate interfaces is more reliable. 
> 

For IDE you need them on separate channels also for performance reasons 
since the IDE channel only allows one drive to use it at any time.

So it is both for performance and reliabity reasons that one must put 
IDE drives on their own channel.