lundehundt
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cilly schrieb:
Sorry - cilly, aber diesmal ist deine Quelle im Unrecht.
Hier ein Auszug aus einer von vielen Quellen: http://www.mrbarrett.com/archives/2004/12/panther_automat.html
The second type of automatic disk optimzation happening is called Adaptive Hot Files Clustering. Here's a simple explanation on how AHFC works. Understand that every hard disk spins. Data nearer the center of the disd is read faster than data towards the outside. So the best place to keep regularly-accessed files is, of course, nearer the center of your disk. Over a period of a few days, Mac OS X 10.3 will keep track of which data files (under 10MB in size) are accessed regularly. These are called "hot files." It keeps this information in a file called .hotfiles.btree at the root of your hard drive. These files are moved nearer to the center of your hard disk and "cold" files are moved elsewhere. As far as I can tell, this optimization happens pretty soon after your initial installation of Mac OS X 10.3 and isn't an ongoing process (might be wrong on this; anyone know for sure?). When the hotfiles are moved nearer the center of disk, they are also defragmented. This also works only for hard disks formatted as HFS+(Journaled).
Cheers,
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