Hot swap on IDE

Hello,

I want to find that anyone made a successful work for the HOT-SWAP
on the IDE master/slave.

Ther are many systems that use the IDE for RAID. However, I heard most of
them
use the MASTER.

Is it really impossible to make use of both master and slave?
I mean "Are there any sucess story to use the slave?".

Thanks in advance,

Bo