I have a G5 with two 250 gig serial ATA drives. I want to use OS X's built-in Raid support to stripe the drives. Is the performance increase only marginal? not even noticable? Note the drives are serial ATA ... not SCSI.

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Sorry, I forgot to mention that if I striped the drives, I'd be creating one 500 gig partition for everything - including the system.

I personally shy away from striping.

Why? Because if one drive goes funky, then you'd lose all 500GB of data. Also, I'd be willing to bet that as fast as SATA is, the performance gain wouldn't be that big.

I mean, c'mon, you've got a G5 with Serial ATA. How much more speed are you looking for? :p

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