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The punishment of the Hard Disk Drive
Flash memory can not be taken from your regular hard drive in the near future, but it may still play an important role for long.
The hard disk is with us more than youâ € ™ d realize. The first examples materialized back in the 1950s, and the IBM Winchester format we still use today mainly arrived in 1973. Since then, pundits predicted the harsh sentence diskâ € ™ s more than once. With the rise of Flash memory in mobile devices, which are pushing down the price per unit is expected that Solid State Disks (SSDs) will take over the mechanical race sooner or later. But with no signs of this happening now, there is new technology bubbles which could see flash memory with a bigger role in the PC storage.
Drive Time
The specter Haunting HD technology is the â € ~ super paramagnetic Effecta € ™. This is probably a limit to how small the magnetic grains on a hard drive can be. Under a certain size, the temperature increases enough to reverse magnetic polarity of grains. This makes the hard drive unreliable. At present, the super paramagnetic impact on one away from new developments such as perpendicular recording which allows the use of larger grains by stacking them on their ends perpendicular to the disk surface. In traditional recording, grains parallel the disc surface, thus taking more space. In the long term, but it will only delay the perpendicular recording hard diskâ € ™ s performance.
Flash memory also requires much less power than a mechanical drive. Moreover, Flash has much lower access times than a hard disk. As a result, Flash hard drives offer boot times 25 â € "50% faster than conventional hard drives. On the down side, flash memory is still only available in the rather meager capabilities, which are terribly expensive.
Mix and Match
SSD's have their good and bad side in comparison to HDD. This has led to a new idea, why not use both at the same time. Samsung was the first to publicize the concept, and discuss its hybrid hard drive (HHD) for the last 2 years. These 128MB bolts Samsungâ € ™ s OneNAND Flash memory on a regular hard drive. The Flash is used as a buffer, storing messages duties until he is full. Only then the data written to HHD. In this way, in times of light use, the hard drive can remain inactive or in hibernation for much longer. Samsung claims this reduces the power consumption with an average of 9%.
Seagateâ € ™ s Momentus 5400 PSD has a similar approach, but uses twice as much Flash (256MB). Seagate maintains the increased capacity reduces energy consumption by as much as half.
Since its data without power proposes Flash, ita € ™ s an ideal place to keep a part of the hibernation file. Seagate claims it reduces the recovery of sleep by 20%. Using a flash buffer can prolong the life of your hard drive, usually measured in terms of the average number of hours can be used for acting.
Despite Samsung First To HHD fame, was developed by Microsoft. In fact, two technologies in Windows Vista make use of them. Ready Drive is what Microsoft calls for HD support in Windows Vista and a driver will be needed to process manage. But Microsoft has a surprising take on the hybrid idea, too. In recognition of the ubiquity of Flash RAM thumbdrives, Windows Vista Ready Boost will, which everyone can use. Instead of the flash cache built into the hard drive, can use a ReadyBoost thumb drive instead.
Perhaps the most viable version of the hybrid idea is the one Intel is currently calling Robson. Instead of relying on the hard disk or third party add-on for the Flash memory, Robson puts it directly on the motherboard, connected to the Southbridge PCI Express. In this way each disc can be used, and you donâ € ™ t have to worry about compatibility issues.
It Ready to Drive advantage of the power, so it's € ™ s focus on portable computers. But with 4GB Ready Boost already started for the hybrid idea is started with clear implications for the desktop PC as well have. So maybe the SSD will be on the hard disk, as has been predicted for so long â € "just a little more clandestine way than we originally anticipated.
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