http://www.xbitlabs.com/news/storage..._Platform.htmlThe helium-filled hard disk drives can incorporate up to seven platters inside typical 3.5" form-factor, which eliminates need for a breakthrough in areal density to create higher-capacity hard drives. Helium-filled HDDs will not only increase capacities of hard drives and decrease per-gigabyte costs, but may significantly improve datacenter TCO on virtually every level: capacity, power, cooling and storage density as they directly affect such measures as cost-per-terabyte, watt-per-TB, TB-per-system weight and TB-per-square foot.
The density of helium is one-seventh that of air, delivering significant advantages to HGST’s sealed-drive platform. The lower density means dramatically less drag force acting on the spinning disk stack so that mechanical power into the motor is substantially reduced. The lower helium density also means that the fluid flow forces buffeting the disks and the arms, which position the heads over the data tracks, are substantially reduced allowing for disks to be placed closer together (i.e., seven disks in the same enclosure) and to place data tracks closer together (i.e., allowing continued scaling in data density). The lower shear forces and more efficient thermal conduction of helium also mean the drive will run cooler and will emit less acoustic noise.
great, now i have to worry about my hdd floating away
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Originally Posted by jayhall0315
, I like this news.
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