公开(公告)号：US20190317901A1

公开(公告)日：2019-10-17

申请号：US16012470

申请日：2018-06-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ramdas P. KACHARE ,  Sompong Paul OLARIG ,  Vikas SINHA ,  Zvika GUZ

IPC: G06F12/1009 ,  G06F12/02 ,  G06F12/109 ,  G06F3/06

Abstract: A controller of a data storage device includes: a host interface providing an interface to a host computer; a flash translation layer (FTL) translating a logical block address (LBA) to a physical block address (PBA) associated with an input/output (I/O) request; a flash interface providing an interface to flash media to access data stored on the flash media; and one or more deep neural network (DNN) modules for predicting an I/O access pattern of the host computer. The one or more DNN modules provide one or more prediction outputs to the FTL that are associated with one or more past I/O requests and a current I/O request received from the host computer, and the one or more prediction outputs include at least one predicted I/O request following the current I/O request. The FTL prefetches data stored in the flash media that is associated with the at least one predicted I/O request.