You didn't ask but there are 2 questions that are common when an owner has a failed drive.
1. Can I get my files back?
2. Can I fix it?
If a person wants the files they would never limit themselves to Apple only machines. Read http://forums.cnet.com/5208-7588_102-0.html?messageID=3080838&tag=forums06;posts#3080838 where we used Linux to salvage files off the LaCie.
If a person wants it fixed (which is NOT to be confused with data recovery steps) we look at the devices and find these are made up of case, drive and sometimes a power brick. It is now a simple matter of replacing which of the failed parts.
This is a very strange situation, but I have 2 x Lacie Hard drives - 2 x d2 and 1 x Lacie Porche and all three drive are not recognised now. I have tried two different computer, have updated all software, and have tried different Firewire and USB cables and different sockets on computer. The Porche drive was the time machine for a G4 running OS 10.4 and the other two were back ups of important data. Since then I have replaced the G4 with a Power Mac and wanted to retrieve the G4 back up onto it or onto the iMac.
Any help appreciated