Samsung Electronics Co., Ltd.

Dae Hun You

Walter Jun

Jae Eun Kim

Sung-wook Kim

Seung-Woo Lim

So-Geum Kim

Jae Hwan Lim

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.

Growing community of inventors

Seoul, South Korea

Dae Hun You