A hybrid drive, a.k.a. Hybrid Hard Drive (HHD), is a type of large-buffer computer
hard disk drive. It is different from standard hard drives in that it employs a large
buffer (up to 1
GB) of
non-volatile flash memory to cache data during normal use. By primarily using this large buffer for non-volatile data storage, the
platters of the hard drive are at rest almost all of the time, instead of constantly spinning as they are in current hard drives. This offers numerous benefits, chief among them speed, decreased
power consumption, improved reliability, and a faster
boot process.
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