Choosing a Hard Disk
How does one choose the hard disk drive (HDD) from all of the available vendors and capacities? First, it’s important to recognize that it’s not a highly critical decision; I’m not likely to choose a vendor or capacity that is unsuitable, and drives are not a huge expense any more, so I can add or replace drives later (or sooner) if necessary.
My existing system has 23 Gb available out of 100 Gb total capacity, so I’m using about 77 Gb. Disk usage has grown from about 15 Gb in 1999 to 77 this year, which means that it grew by a factor of five in the intervening eight years. That suggests I should buy five times the amount of disk that I am now using, or about 400 Gb, to last the next eight years. Maybe so.
But maybe not. New technology is on the horizon. It is already possible to buy a 64 Gb flash drive with no moving parts for about $900. How soon will the price/performance curve of flash or some even-better technology approach that of moving-head disk drives? …
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Written by Don on August 29th, 2007 with no comments.
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