My principle in partitioning is that fewer partitions is better, so long as you can easily wipe and reinstall the OS if you need to.
If you ever need to reinstall OS X (say, to upgrade to OS X 10.2, or just to clean out the cruft that builds up), you'll obviously have to backup and reinstall everything else, too.
So your guide to partitioning should be how much of a bother it will be to reinstall the other stuff. Other stuff consists of:
- Mac OS 9
- home folders (preferences, documents, etc.)
- applications (other than Apple apps)
- big media files (mp3s, video files, digital pictures)
Of those, Mac OS 9 and the big media files are the biggest pain to reinstall. So, I make separate partitions for those.OS 9
: I could even give less to OS 9, say 1-3 gigs, depending on how many OS 9 apps you still use. If you're using just the scanner software, you'll be fine with ~1 gig.OS X
: This is my main partition, so I bump it up to ~10gigs. All my OS X apps, User folders, etc. live here.
I back up the home folders to CD regularly, so a clean install of OS X isn't a big problem. After experimenting, I found it was too much bother to put the User folders on a wholly separate volume.
I also keep all my apps in a separate MyApplications folder, to make it easier to backup and update these, separately from the Apple apps in /Applications.Storage
: If you wanted to reinstall OS X, it'd be a big pain to back up and reinstall 30+gigs of music, video, and pictures. So I keep these on a separate partition that can be backed up or wiped clean separate from OS X.
Years ago I did like MarcUK, with 7-8 partitions. However, I could never predict with precision how much room I'd later want for say, VirtualPC versus Media Applications versus Scratch. So I'd always end up putting files in the "wrong" partition anyway.
Also, more partitions means more wasted space: if you partition 6 gigs for Applications, but are only using 2 gigs, that's 4 gigs of space that could be going to your ever-expanding mp3 collection. If Applications and Music are just separate folders on the same disk, all that space is available to whatever use you want to put it.
hope that helps
[ 03-09-2002: Message edited by: Mithras ]</p>