On Friday 03 March 2006 04:13, Geert Uytterhoeven wrote: > That sounds actually good to me... > - disk capacity is increasing a lot, > - disk transfer speeds are also increasing, but less compared to > capacity, - disk latency (seek times) is improving very slowly.
All of this is true, but the time it takes to seek across a disk is still only a few ms. If you consider latency as "time to seek across so many MB", then seek times are actually improving considerably. Consider: Hard disk: 6ms to seek across 200GB (.03 ms/GB) DVD: 125ms to seek across 2.2GB (56 ms/GB) CD: 95ms to seek across 325MB (290 ms/GB) As you can see, the penalty of a seek in data terms is three orders of magnitude higher for DVD than for a modern hard disk. You will not get better performance on your hard disk by using UDF. Cheers, --Ian -- Wiki for Amanda documentation: http://wiki.zmanda.com/
