Problems with FireWire drives showing up on a Mac?

Macs and external FireWire hard drives can be strange. Sometimes the drive just doesn't show up.

Here's a trick I found after some googling: If your FireWire drive and its partitions are not showing up, disconnect the firewire cable, turn the drive off (or unplug it), plug the firewire cable back in and turn the drive back on. I have no idea why this works but it does (and you might want to try this using each of the drive's FireWire ports if it has more than one).