Samsung Electronics Co., Ltd.

Jae Hwan Lim

Ji-Hoon Kim

Jung Woo Lee

Sung-Wook Kim

Walter Jun

Jae Eun Kim

Sung-wook Kim

Seung-Woo Lim

Byung Yo Lee

Hyun Jung Yoo

So-Geum Kim

Dae Hun You

A storage controller receives a first transmission preset value and a first coefficient value at a first time from outside, at a phase 3 stage of a PCIe link training and equalization, checks whether the first transmission preset value and the first coefficient value are optimal with reference to a database, transmits signals corresponding to the first transmission preset value and the first coefficient value to the outside when the first transmission preset value and the first coefficient value are determined to be optimal and transmits signals corresponding to a second transmission preset value and a second coefficient value from the database, which are different from the first transmission preset value and the first coefficient value and optimal for the phase 3 stage of the PCIe link training and equalization, to the outside when the first transmission preset value and the first coefficient value are determined not to be optimal.

Storage controller and storage device for PCIe communication optimization

A redundant array of independent disks (RAID) storage device including; a memory device including first memory devices configured to store at least one of data chunks and corresponding parity (data chunks/parity) and a second memory device configured to serve as a spare memory region, and a RAID controller including a RAID internal memory configured to store a count table and configured to control performing of a rebuild operation in response to a command received from a host, wherein upon identification of a failed first memory device, the RAID controller accesses used regions of non-failed first memory devices based on the count table and rebuilds data of the failed first memory device using the second memory device.

RAID storage device, host, and RAID system

Growing community of inventors

Suwon-si, South Korea

Jae Hwan Lim