Duplicating data to improve access times?

Caporegime
Joined
12 Mar 2004
Posts
29,960
Location
England
I was wondering, if it's possible to duplicate data on one hdd rather like raid 1 so that access times are reduced, as thats what affects loading times. The same way that game developers duplicate data on dvds to improve loading times.
 
In theory it's possible but you'd need to insert some intelligence into the I/O subsystem to allow the system to determine which of the duplicate files is the closest to the read heads. The question is whether having to do two file table lookups and the consequent comparision would yield better overall performance.
 
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