I have a couple of Western Digital My Book Studio Hard Drives
that I ocassionally connect to my Mac Book Pro when I want to off load some documents, files, etc. This stuff is not really worthy of automated backup and I just manually from time-to-time copy it over to a couple of external hard drives just in case I ever have a hankering to look at them again.
The problem I experience from time-to-time is that Spotlight wants to index these drives and it really is unnecessary. The obvious solution is to just tell Spotlight not to index these hard drives and doing so is as easy as going into the Spotlight Preferences, choosing Privacy, and adding the hard drives to the list of locations Spotlight should not index. Adding my two hard drives to Spotlight looks something like:

Hope this helps anyone who is not aware that you can keep Spotlight from indexing various hard drives or other locations on your Apple Mac.
David Hayden
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