Extrnal Drive Optimization For G4 800, HOW DO I GET THE BEST PERFORMANCE ? Options

[COLD]

HELLO GUYS,
I hvae a G4/800/ 80 Gig w/ 17in. flat screen ,Fire Wire 400.
I recently bought a160G Mercury(OWC) hard drive and would like to know how to get the best performance from it.

1.Do I keep my audio software on the internal drive and save to the external drive?
2. Is there some optimization software to use so that my disks won't get fragmented?

I am using DP4.5 also recently aquired.
Any suggestiosn please?

[lepetitmartien]

Keep the app in the internal drive.

Use the Mercury for the audio files only.

It's always dangerous to defrag with no backup, I assume you're in OS 9: use techtools/diskwarrior, norton can do too. Just keep away form the disk doctor, never had problem under classic with but there are horror stories around worth keeping in mind (and NEVER use them in OS X).

Once system/apps are up and running, there's little fragmentation happening there, the working files it's a different problem.