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Western Digital Caviar Black WD2001FASS
Jayesh Limaye, Feb 04, 2010 1219 hrs ISTThis new 2TB hard drive is a speed monster
Very fast, perpendicular recording technology, huge capacity
Heats up, expensive
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Drive Features
The WD2001FASS boasts of a never before seen or heard 2.0 TB capacity - large enough to store everything you throw in it. The large capacity is advantageous also because of the growing size of operating systems - Vista and Windows 7 take over 6 GB. Versions of Linux also take huge amounts of space. We also tend to dump everything we get from friends or download TV shows, movies, games, and software (thanks to our "Broadband" connections) onto the hard drive and never bother to delete it. So a smaller hard drive always ends up running out of disk space. It is therefore logical to go for a huge capacity hard drive like this when one.
Sporting a 3.5-inch form factor, this 7,200 RPM drive contains four platters with 500 GB packed onto each one of them, thanks to the perpendicular magnetic recording (PMR) technology. This means a greater areal density and faster access times, which in turn leads to faster transfer speeds. Unlike any previous models of WD hard drives, this one has a massive 64 MB buffer for uninterrupted data transfer. Though WD has always maintained that a buffer of more than 16 MB is never required, they have decided against taking any chances this time around and doubled the amount of buffer.
As you can see in the image, the drive features a SATA interface - this is the faster and now common 3.0 Gb/s SATA-II.
A very small part of the green PCB is exposed from below.
Like its expensive and fast sibling, the "speed demon" VelicoRaptor, this drive also sports dual processors, which effectively maximizes the performance, especially when it comes to handling multiple files and calculating how to move and cache data. Dual Actuator technology enables improved positional accuracy of the heads over the data tracks. It also features StableTrac - the motor shaft is secured at both ends in such a way that it reduces system-induced vibration and stabilizes platters for accurate tracking, during read and write operations.
This drive features ShockGuard technology to protect the drive mechanics and platter surfaces from shocks. In addition to this, there is the NoTouch ramp load technology that parks the recording heads while the drive is spinning up or down or when it is off, thus eliminating the chances of the recording head touching the disk surface. This improves the life of the drive and makes it more reliable.
To enhance the reliability of the drive, there is Data Lifeguard - a set of data protection features that include shock protection, environmental data protection and real-time embedded error detection and repair. Data Lifeguard technology automatically finds, isolates and corrects problems that may develop during the life of the drive.
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