The more I think of it, IDE cannot be hot-swap, can it? I thought this was a function of AHCI, etc. I thought there were issues trying to unplug and IDE drive while connected.
This is going from several years back so my memory may be wrong, but I do think there are drive bays that setup a second connection inside them to the IDE connection on the motherboard that stays active once you remove the drive. There is a shut off key you need to use that disconnects the drive power and connection to the drive bay while the bay itself maintains the signal to the IDE on the system.