why cant WD put.........

Soldato
Joined
29 Jul 2003
Posts
7,681
10,000rpm motor from raptor in their single platter 320GB hard drive? would be super fast, high transfer rate with ultra low seek time. :cool:

so why?
 
In addition to what fobose said I'd also imagine that the Raptors have special drive heads/movement adapted to cope with the extra stresses that 10k rpm would put on it. I'm also wondering if there is a certain limit to possible data density that can be achieved at those sort of speeds and if a trade-off needs occur.
 
For a start the Raptor platter is (in common with all high rpm drives) almost an inch smaller than the AAKS one to reduce air friction within the drive and hence keep the heat down. I suppose there's nothing stopping them creating a (guessing here) ~180Gb small diameter platter to fit in the Raptor case but then there's the question of getting the head alignment firmware and mechanics to work with the tighter tracks. If you look at the bulk of the newer 300+Gb per platter drives the access times are down a bit, this is possibly due to the higher accuracy required by the high density platters.
 
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