A hybrid drive, hybrid hard drive (HHD), or hybrid hard disk drive (H-HDD) is a type of large-buffer computer hard disk drive. It is different from standard hard drives in that it integrates a cache using non-volatile memory or even a small solid-state drive (SSD or SSH drive). Although the cache typically uses non-volatile flash memory, some drives use battery-backed volatile RAM (a hybrid RAM disk). The flash memory buffer can speed up repeated reads to the same location; a RAM buffer speeds both reads and writes, but must be written to backup storage before power is lost.
Read more about Hybrid Drive: History, Operation, Claimed Benefits, Inherent Drawbacks, Software Implementation, Hybrid RAM Disk
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“We do not want them to have less.
But it is only natural that we should think we have not enough.
We drive on, we drive on.
When we speak to each other our voices are a little gruff.”
—Gwendolyn Brooks (b. 1917)