Saturday, March 31, 2007
First 1TB hard disk just announced. In memory to Jim Gray.
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Hitachi's HDS721010KLA330 (picture above) is the first 1 TB hard disk drive ever, just announced in Japan. Missed Jim Gray, great man and world's class expert in huge databases and disks, predicted that in his talk, even in year 2001. Well, that wasn't too hard, taking in account all those previously known HD trends. Though he thought it will happen by the end of 2006, it happened only 3 months later, and that failure in 6 years time span is damned good result (in 4% error tollerance range ). The only strange thing about it is that 1TB disk in 2001 was quite unnecessary and strange idea.
I remember well, my new PC (year 2000 patched) was equipped
that year with "huge" WD 8GB disk. However, Jim correctly envisioned the time when 1TB disk will lead the race. And one more important thing. It will essentially be a TAPE. In performance sense, of course. Of course, I immediately recognized the result of that his finding , and connected it with my own research on ongoing trends in computer future memory hierarchy with the following moto: Tape is dead, disk will become tape, Flash will become HD, RAM will become place for smaller file system objects, and large L3 - L4 SRAM caches will takeover former RAM duties. In 2002. That is why it was pretty brave claim.
4 years later, in December 2006 Jim wrote his last article before he passed his way by the end of January. Here is an disk related important quote form that article:
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