公开(公告)号：US20180052624A1

公开(公告)日：2018-02-22

申请号：US15351434

申请日：2016-11-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Gunneswara R. MARRIPUDI ,  Stephen G. FISCHER ,  John PING ,  Indira JOSHI ,  Harry R. ROGERS

IPC: G06F3/06 ,  G06F13/42 ,  G06F11/10 ,  G11C29/52

Abstract: A storage system includes a plurality of solid-state drives (SSDs) in which each SSD is an endpoint of a peer group in which one SSD is a primary SSD of the peer group, or all SSDs are treated as equal peers. Each SSD further includes a host interface port coupled to a host computing device that receives receive input/output (I/O) communications from the host computing device, a peer-interface port coupled to the peer-interface port of each other SSD in the peer group; and a controller coupled to the host interface port and the peer-interface port. The primary SSD controller is responsive to I/O communications received from the host computing device to provide data-protection computations relating to a coordinated data-protection configuration provided by the peer group and to pass the coordinated data-protection configuration information to the controllers of the other end points of the peer group through the peer-interface port.

公开(公告)号：US20180307598A1

公开(公告)日：2018-10-25

申请号：US15821708

申请日：2017-11-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Stephen G. FISCHER ,  Changho CHOI ,  Jason MARTINEAU ,  Rajinikanth PANDURANGAN

IPC: G06F12/02 ,  G06F3/06

CPC classification number: G06F12/0253 ,  G06F3/0608 ,  G06F3/0659 ,  G06F3/0679 ,  G06F12/0246 ,  G06F2212/7201 ,  G06F2212/7205 ,  G06F2212/7211

Abstract: A Solid State Drive (SSD) is disclosed. The SSD may include storage for data and a host interface logic to receive requests from a host machine. The SSD may also include an SSD controller to manage reading data from and writing data to the storage responsive to the requests. The SSD controller may include a flash translation layer to translate logical addresses to physical addresses, a garbage collection logic to perform garbage collection on an erase block that includes a valid page, a stream logic to manage stream characteristics for the data in the valid page, and a restreamer logic to assign the valid page to a new block based on the stream characteristics.