公开(公告)号：US10126970B2

公开(公告)日：2018-11-13

申请号：US15348875

申请日：2016-11-10

Applicant: SanDisk Technologies LLC

Inventor： Amir Shaharabany ,  Hadas Oshinsky ,  Yacov Duzly ,  James Fitzpatrick

IPC: G06F11/00 ,  G06F3/06 ,  G06F11/07

Abstract: Systems, methods and/or devices are used to pair metablocks in a non-volatile storage device. In one aspect, a method of data organization of a memory device includes, writing data to and reading data from respective metablocks in a set of metablocks. The method further includes while performing said writing and reading: (1) accessing one or more management data structures in controller memory, identifying two or more metablock pairs; (2) accessing and updating metablock status information indicating which metablocks of the set of metablocks are closed, free and open; and (3) accessing and updating a valid count, corresponding to a number of sub-block memory units having valid data for each of a plurality of metablocks in the set of metablocks.

公开(公告)号：US20170168716A1

公开(公告)日：2017-06-15

申请号：US15348875

申请日：2016-11-10

Applicant: SanDisk Technologies LLC

Inventor： Amir Shaharabany ,  Hadas Oshinsky ,  Yacov Duzly ,  James Fitzpatrick

IPC: G06F3/06 ,  G06F11/07

CPC classification number: G06F3/064 ,  G06F3/0616 ,  G06F3/0679 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/0787 ,  G06F11/079 ,  G06F11/08 ,  G11C29/52 ,  G11C2029/4402

Abstract: Systems, methods and/or devices are used to pair metablocks in a non-volatile storage device. In one aspect, a method of data organization of a memory device includes, writing data to and reading data from respective metablocks in a set of metablocks. The method further includes while performing said writing and reading: (1) accessing one or more management data structures in controller memory, identifying two or more metablock pairs; (2) accessing and updating metablock status information indicating which metablocks of the set of metablocks are closed, free and open; and (3) accessing and updating a valid count, corresponding to a number of sub-block memory units having valid data for each of a plurality of metablocks in the set of metablocks.