Gustav Brock
Gustav at cactus.dk
Thu Feb 19 10:23:57 CST 2009
Hi All I've found one error in that article. The author mentions power consumption as an important if not prohibitive factor when building such peta database storage: Tapes use no power while disc drives do. That's right. A tape uses zero power but the tape reader does. However, if you spin down a harddrive, isn't the power consumption close only a tiny fraction of the power used when spinning? If so, a technique to spin down harddrives would be very nice. And if the drive could do this all by itself - no access for a minute => spin down - wouldn't that be clever? And still much faster than a tape storage unit. /gustav >>> accessd at shaw.ca 18-02-2009 20:06 >>> For those that are interested here is a link to an article on one of the crop of new super size databases that are trying to meet the demand of the ever growing data storage issues: http://www-db.cs.wisc.edu/cidr/cidr2005/papers/P06.pdf Jim