Western Digital finally unveiled its first hard drive capacity of 2TB, WD Caviar Black and business-oriented WD RE4. Both hard drives are made using 4 plates, they have a rotational speed 7200 rpm, 64MB of cache memory, dual processors, and dual actuators to propelling reading heads. For these parameters decreases the time of head positioning and, potentially, offset by the slowdown in finding relevant information arising from four 500 GB platters.
Their hard drives is connected via SATA I/SATA II interface. This RE4 is designed for continuous operation, its MTBF reaches 1.2 million hours, it supports additional features such as NCQ (Native Command Queuing), an anti-shock sensor, and so on. Caviar Black is already on sale for $299, while RE4 is not yet ready to be shipped to workstations and servers, and still being tested.
Source
WD ships full-speed 2TB hard drives
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