A quick overview of the disk drive market

Hard disks provide huge storage capacities that can reach to 300GB and higher (though enterprise disks offer somewhat less -- up to 150 GB per disk). Enterprise hard disks offer fast data transfers, and drives like the Seagate Cheetah family can achieve 400 MBps across a 4 Gbit Fibre Channel (FC) interface. While cost is relatively low (per gigabyte), reliability is excellent with mean time between failures ratings easily exceeding 1 million hours. Consequently, hard drives are employed in personal computers, network servers and storage arrays to store a wide range of information, including operating systems, applications and data.

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